JP6077163B2 - SEARCH DEVICE, SEARCH METHOD, AND SEARCH PROGRAM - Google Patents

Description

  The present invention relates to a search device, a search method, and a search program.

  2. Description of the Related Art Conventionally, a technique for assisting user input when performing an Internet search or the like has been provided. A search device using such a technique allows a user to search by presenting search query candidates to the user based on the user's current input or past input histories of a large number of users including the user. Assist the input when.

  In addition, we offer a search service device that makes suggestions based on keywords that appear in a specific site, and makes it possible to perform appropriate searches quickly by taking advantage of suggestions specific to that site. Has been.

JP 2013-232220 A JP 2012-14208 A JP 2011-118735 A

  However, in the above-described conventional technology, it is not always possible to appropriately assist the input when the user performs a search. Specifically, search query candidates presented based on search queries input by a large number of users including the user in the past are not necessarily appropriate.

  The present application has been made in view of the above, and an object of the present invention is to provide a search device, a search method, and a search program capable of appropriately assisting an input when a user performs a search.

  The search device according to the present application obtains attention information determined to be noticed in a predetermined period based on information including information other than a search query input in the past, which is information related to web content, A presentation unit that presents a predetermined number of the attention information corresponding to information input as a search query and a predetermined number of search queries based on the history of the search query as search query candidates. To do.

  According to one aspect of the embodiment, there is an effect that it is possible to appropriately assist an input when a user performs a search.

FIG. 1 is a diagram illustrating an example of a search assist process according to the embodiment. FIG. 2 is a diagram illustrating a configuration example of the search assist device according to the embodiment. FIG. 3 is a diagram illustrating an example of the attention word storage unit according to the embodiment. FIG. 4 is a diagram illustrating an example of a search information storage unit according to the embodiment. FIG. 5 is a diagram illustrating an example of a search page according to the embodiment. FIG. 6 is a diagram illustrating an example of a search page according to the embodiment. FIG. 7 is a sequence diagram illustrating a search assist processing procedure according to the embodiment. FIG. 8 is a diagram illustrating an example of the attention word storage unit according to the modification. FIG. 9 is a diagram illustrating an example of a search page according to the modification. FIG. 10 is a diagram illustrating an example of a search page according to a modification. FIG. 11 is a diagram illustrating an example of a search page according to a modification. FIG. 12 is a diagram illustrating an example of a search page according to a modification. FIG. 13 is a hardware configuration diagram illustrating an example of a computer that realizes the function of the search assist device.

  Hereinafter, embodiments for realizing a search device, a search method, and a search program according to the present application (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings. Note that the search device, the search method, and the search program according to the present application are not limited by this embodiment. In the following embodiments, a case where information input as a search query by a user is character information will be described as an example. Moreover, in the following each embodiment, the same site | part is attached | subjected the same code | symbol and the overlapping description is abbreviate | omitted.

[1. (Search assist processing)
First, an example of the search assist process according to the embodiment will be described with reference to FIG. As shown in FIG. 1, the search system 1 includes a user terminal 10, an extraction device 20, a Web server 30, and a search assist device 100. The user terminal 10, the extraction device 20, the Web server 30, and the search assist device 100 are connected to be communicable by wire or wireless via a predetermined communication network (not shown). The search system 1 illustrated in FIG. 1 may include a plurality of user terminals 10, a plurality of extraction devices 20, a plurality of Web servers 30, and a plurality of search assist devices 100. .

  The user terminal 10 is an information processing device used by a user. For example, the user terminal 10 acquires a search page for inputting a search character from the search assist device 100 in accordance with an operation by the user. Further, the user terminal 10 transmits a search character as a search query to the search assist device 100 via the search page. Hereinafter, the user terminal 10 may be referred to as a user. That is, in the following, the user can be read as the user terminal 10. In the following, a character input by the user to the search window of the search page is referred to as a search character, and a search character actually used for the search is referred to as a search query.

  The above-described user terminal 10 is realized by, for example, a smartphone, a tablet terminal, a notebook PC (Personal Computer), a desktop PC, a mobile phone, a PDA (Personal Digital Assistant), or the like.

  The extraction device 20 extracts information for providing a search related to information updated in real time mainly by an SNS (Social Networking Service), a miniblog, or the like, that is, a service related to a so-called real time search. For example, the extraction device 20 acquires information about web content from a plurality of Web servers 30 and analyzes the acquired information about web content. Then, the extraction device 20 extracts the attention word, which is attention information determined to have been noticed in a predetermined period, based on the analysis result of the information regarding the web content. Note that the predetermined period may be, for example, one day from when the information about the web content is acquired to 24 hours ago, and can be set as appropriate according to the purpose.

  Specifically, the extraction device 20 collects information updated by a general user through an SNS service or the like as information related to web content, analyzes the information using various techniques such as morphological analysis, and pays attention during a predetermined period. The attention word that has been extracted is extracted. Note that the extraction device 20 mainly targets information updated by a general user, such as a SNS service, or by quoting information related to web content, but is updated by a non-general user such as a news article. Information may also be targeted. The attention word here is called a so-called buzz word or the like.

  The Web server 30 is an information processing apparatus that stores documents and images. The web server 30 transmits information related to web content to the extraction device 20 in response to a request from the extraction device 20. For example, the web server 30 provides information regarding the web content stored in the web server 30 to the extraction device 20 that has requested acquisition of information regarding the web content via an API or the like. Here, the information related to the web content includes, for example, information such as a web page provided by SNS or the like, a title or a category tagged on the web page.

  The search assist device 100 is a search device that provides a search assist service that presents search query candidates based on a search character input by a user. This point will be described with reference to FIG. The search assist device 100 illustrated in FIG. 1 provides a search assist service that assists a user search by presenting search query candidates corresponding to a search character input when the user performs a search.

  As illustrated in FIG. 1, the extraction device 20 acquires information related to web content from the web server 30 (step S <b> 11). And the extraction apparatus 20 extracts the attention word which is attention information based on the information regarding the acquired web content. Note that the extraction device 20 periodically extracts the word of interest at short intervals such as every 10 minutes.

  Subsequently, as illustrated in FIG. 1, the search assistance device 100 acquires information on the attention word from the extraction device 20 (step S <b> 12). In addition, the search assistance apparatus 100 acquires the information regarding an attention word from the extraction apparatus 20 regularly at short intervals, such as every 10 minutes, for example.

  Subsequently, the search assist device 100 provides the user terminal 10 with a search page that is a search screen for the user to perform a search (step S13). Specifically, the search assist device 100 provides the user terminal 10 with a search page including a search window for a user to input a search character. Note that the search assist device 100 may provide a search page in a timely manner before the user performs a search. For example, the search assist device 100 causes the user terminal 10 to display a search page when the user selects an icon or the like displayed on the user terminal 10. Thereafter, the search assist device 100 receives the search character input to the search page from the user terminal 10 (step S14). Specifically, the search assist device 100 uses the asynchronous communication technology such as Ajax (Asynchronous JavaScript (registered trademark) And XML) to search the user terminal 10 every time a search character is input to the user terminal 10. Accept. That is, the search assist device 100 receives a search character from the user terminal 10 while inputting the search character. In the example shown in FIG. 1, since the user has entered the search character “A” in the search window of the search page displayed on the user terminal 10, the search assist device 100 receives the search character “A” from the user terminal 10. receive.

  After that, the search assisting apparatus 100 sends search query candidates generated based on the attention word corresponding to the search character “A” and the search query input in the past corresponding to the search character “A” to the user terminal 10. Present (step S15). Specifically, the search assist device 100 presents search query candidates to the user terminal 10 each time a search character is received from the user terminal 10 using asynchronous communication technology such as Ajax. In the example shown in FIG. 1, “AAB !!!!”, which is the attention word that matches the search character “A”, and the search character “A” are entered in the past in the search page of the user terminal 10. Search queries such as “A11”, “A12”, “A13”, and the like are presented. Therefore, the user is presented with both the word of interest “AAB !!” and search queries “A11”, “A12”, “A13”, etc., that have been input in the past as search query candidates. . Note that the search assist device 100 may present an attention word that completely matches the search character or a search query input in the past. In addition, the search assisting apparatus 100 may present a word of interest corresponding to partial match or backward match or a search query input in the past in comparison with the search character. Thereafter, although illustration is omitted, when one candidate is selected from the search query candidates presented to the user terminal 10, the search assisting apparatus 100 performs a search using the selected candidate as a search query. . For example, when the search query candidate “AAB !!” presented to the user terminal 10 is selected, the search assistant device 100 executes a search using the selected “AAB !!!!” as a search query. Then, the search assist device 100 provides the result of the executed search to the user terminal 10.

  As described above, the search assisting apparatus 100 according to the embodiment corresponds to the search character received from the user, along with the search query candidate based on the search query input in the past, and the predetermined period based on the information about the web content. The attention word determined to have been noticed in is also presented as a search query candidate. Thereby, together with the search query that has been used for many searches in the past, the attention word that has been determined to have a high degree of attention in a predetermined period is also presented as a search query candidate. Thereby, the user can select the attention word presented as a search query candidate as a search query. That is, the user can receive a search assist using the attention word in addition to a normal search assist using a search query input in the past. Therefore, the search assist device 100 can appropriately assist the input when the user performs a search.

[2. (Configuration of search assist device)
Next, the configuration of the search assist device 100 according to the embodiment will be described with reference to FIG. FIG. 2 is a diagram illustrating a configuration example of the search assist device 100 according to the embodiment. As illustrated in FIG. 2, the search assist device 100 includes a communication unit 110, a storage unit 120, and a control unit 130. The search assist device 100 includes an input unit (for example, a keyboard and a mouse) that receives various operations from an administrator of the search assist device 100 and a display unit (for example, a liquid crystal display) that displays various types of information. You may have.

(Communication unit 110)
The communication unit 110 is realized by a NIC (Network Interface Card), for example. The communication unit 110 is connected to a predetermined communication network (not shown) by wire or wireless. The communication unit 110 transmits and receives information to and from the user terminal 10 and the extraction device 20 via a predetermined communication network (not shown).

(Storage unit 120)
The storage unit 120 is realized by, for example, a semiconductor memory device such as a RAM (Random Access Memory) or a flash memory, or a storage device such as a hard disk or an optical disk. As illustrated in FIG. 2, the storage unit 120 according to the embodiment includes an attention word storage unit 121 and a search information storage unit 122.

(Attention word storage unit 121)
The attention word storage unit 121 according to the embodiment stores information on the attention word acquired from the extraction device 20. FIG. 3 shows an example of information related to the attention word stored in the attention word storage unit 121. As illustrated in FIG. 3, the attention word storage unit 121 includes items such as “attention word” and “frequency” as information on the attention word.

  “Attention word” indicates the attention word acquired from the extraction device 20. “Frequency” indicates information relating to the frequency of use of the attention word within the immediately preceding period, for example, within 24 hours. Here, the used frequency is the number of appearances of the attention word in the information related to the web content, for example, information updated by a general user in SNS or the like.

  Here, the state shown in FIG. 3 will be described. In FIG. 3, the attention word “AAB !!” indicates that the frequency of use in the immediately preceding period is 1000 times. Similarly, the attention word “BBB !!” indicates that the frequency of use within the immediately preceding period is 800 times.

(Search information storage unit 122)
The search information storage unit 122 according to the embodiment stores search related information related to search.

  The search information storage unit 122 stores information used for providing a search service as search related information. For example, the search information storage unit 122 stores information related to a search page displayed on the user terminal 10, information used for displaying a search result on the user terminal 10 after the user performs a search, and the like.

  In addition, the search information storage unit 122 stores information used for providing a search assist service as search related information. The search information storage unit 122 stores, for example, information related to search queries input in the past. Specifically, the search information storage unit 122 stores search queries used in the past by many users who use the search service, the number of searches, and the like.

  In FIG. 4, an example of the information regarding the search query input in the past memorize | stored in the search information storage part 122 which concerns on embodiment is shown. As illustrated in FIG. 4, the information related to the search query input in the past stored in the search information storage unit 122 includes items such as “search query” and “number of searches”.

  “Search query” indicates a search query input in the past. “Number of searches” indicates information related to the number of searches, which is the number of times a search query input in the past during a predetermined period, for example, the last one month, is used for the search.

  Here, the state shown in FIG. 4 will be described. In FIG. 4, regarding the search query “C15”, it is stored that the number of searches, which is the number of times used in the past search, is 50000 times. Similarly, it is stored that the number of searches for the search query “A11” is 45000 times. Here, the search frequency of the search query is periodically acquired and updated.

  Returning to the description of FIG. 2, the control unit 130 performs various programs (search assist program) stored in a storage device inside the search assist device 100 by, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). This is realized by executing the RAM as a work area. The control unit 130 is realized by an integrated circuit such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA).

  As shown in FIG. 2, the control unit 130 includes an acquisition unit 131, a reception unit 132, a generation unit 133, a presentation unit 134, and a search unit 135. Information processing functions and operations described below Realize or execute. The internal configuration of the control unit 130 is not limited to the configuration illustrated in FIG. 2, and may be another configuration as long as the information processing described later is performed. In addition, the connection relationship between the processing units included in the control unit 130 is not limited to the connection relationship illustrated in FIG. 2, and may be another connection relationship.

(Acquisition part 131)
The acquisition unit 131 acquires information related to the attention word from the extraction device 20. Here, the acquisition unit 131 periodically acquires information on the attention word from the extraction device 20 at short intervals such as every 10 minutes. When the acquisition unit 131 acquires information about the attention word, the acquisition unit 131 stores the acquired attention word and frequency in “attention word” and “frequency” of the attention word storage unit 121.

(Reception unit 132)
The accepting unit 132 accepts a search character from the user terminal 10. Here, the accepting unit 132 accepts a search character via a search page displayed on the user terminal 10. Specifically, as shown in FIG. 1, the search page displayed on the user terminal 10 displays a search window for inputting a search character, and the user inputs the search character into the search window. The accepting unit 132 accepts the search character from the user terminal 10. Specifically, the reception unit 132 receives a search character from the user terminal 10 each time a search character is input to the user terminal 10 by an asynchronous communication technique such as Ajax.

  For example, in the example illustrated in FIG. 5, when the user inputs the search character “A” in the search window R10 displayed on the search page W10 displayed on the user terminal 10, the reception unit 132 receives the input of the user. In response, the search character “A” is accepted. In other words, when the search character “A” is input to the search window R10 of the user terminal 10, the reception unit 132 immediately receives the search character “A”.

(Generator 133)
The generation unit 133 generates candidate information including search query candidates to be presented to the user in response to the reception unit 132 receiving a search character from the user terminal 10. Specifically, the generation unit 133 extracts the attention word corresponding to the search character received by the reception unit 132 from the attention word storage unit 121, and the search input in the past corresponding to the search character received by the reception unit 132. The query is extracted from the search information storage unit 122. Thereafter, the generation unit 133 generates candidate information including the extracted attention word and a search query input in the past.

  For example, in the example illustrated in FIG. 5, the generation unit 133 extracts the attention word that matches the search character “A” from the attention word storage unit 121. The attention word storage unit 121 shown in FIG. 3 stores a plurality of attention words whose initial characters are “A”, such as “AAB !!” and “ABB !!”. Therefore, the generation unit 133 extracts a plurality of attention words such as “AAB !!” and “ABB !!!”. Note that the generation unit 133 may extract a word of interest corresponding to complete match, partial match, or backward match in comparison with the search character.

  In the example illustrated in FIG. 5, the generation unit 133 extracts a search query input in the past that matches the search character “A” from the search information storage unit 122 in the past. The search information storage unit 122 shown in FIG. 4 stores a plurality of search queries, such as “A11”, “A12”, “AB15”, etc., which have been input in the past with the first character “A”. Therefore, the generation unit 133 extracts a plurality of search queries input in the past, such as “A11”, “A12”, and “AB15”. Note that the generation unit 133 may extract a search query input in the past corresponding to complete match, partial match, or backward match in comparison with the search character. Thereafter, the generation unit 133 extracts a plurality of attention words such as “AAB !!!!” and “ABB !!!!” extracted from the attention word storage unit 121 and “A11”, “A12”, “ A plurality of search queries input in the past, such as AB15 ″, are provided as candidate information to the presentation unit 134.

(Presentation unit 134)
Upon receiving candidate information from the generation unit 133, the presentation unit 134 presents search query candidates to the user terminal 10 based on the candidate information. Specifically, the presentation unit 134 sends search query candidates to the user terminal 10 each time candidate information is received from the generation unit 133 after the reception unit 132 receives search characters using asynchronous communication technology such as Ajax. Present. In other words, when a search character is input to the search window of the user terminal 10, the presentation unit 134 immediately presents a search query candidate corresponding to the input search character. Here, in the example shown in FIG. 5, the candidate information received by the presentation unit 134 includes a plurality of attention words such as “AAB !!” and “ABB !!”. Therefore, the presentation unit 134 determines a word of interest to be presented to the user terminal 10 from the plurality of acquired words of interest. Specifically, the presentation unit 134 obtains the ranking of the attention words based on information on the attention word such as frequency, and determines the attention words to be presented from the higher ranking. Further, the presentation unit 134 may receive the attention words ranked in advance as candidate information from the generation unit 133.

  Here, in the example shown in FIG. 5, the presentation unit 134 receives attention words such as “AAB !!” having a frequency of 1000 times and “ABB !!!” having a frequency of 500 times, as shown in FIG. 3. ing. Therefore, for example, the presentation unit 134 may compare the frequencies of the words of interest and rank them from the higher frequency. Specifically, the presentation unit 134 ranks “AAB !!” having a higher frequency higher than “ABB !!!”. Then, the presentation unit 134 ranks “AAB !!!” in the first place if there is no attention word having a higher frequency than “AAB !!” in the candidate information. In addition, the presentation unit 134 may rank the attention words based on a score calculated from information on the attention words such as frequency. In this case, the attention word memory | storage part 121 may memorize | store the score calculated from the information regarding attention words, such as frequency. Here, the presentation unit 134 calculates the score of the attention word according to the attention degree of the attention word. For example, as the information indicating the attention level used for calculating the score of the attention word, an increase rate of the frequency at which the attention word was used immediately before may be used. In this case, the attention word having a high frequency increase rate used immediately before has a higher score. In addition, the presentation unit 134 may use the frequency as information indicating the degree of attention used for calculating the score of the attention word, for example. Note that the attention word storage unit 121 may store the score acquired from the extraction device 20.

  Next, the presentation unit 134 presents the attention word based on the rank assigned to the attention word. Specifically, the number of attention words to be presented among the search query candidates is determined in the search assist device 100, and the presentation unit 134 presents the attention words in accordance with the number of attention words presented. For example, the presentation unit 134 presents only the first attention word “AAB !!!” if the number of attention words presented is 1, and if the number of attention words presented is 2, the first attention word “ "AAB !!!" and the second most popular word "ABB !!" In this way, the presentation unit 134 presents the attention word according to the number of the attention word presentation, thereby balancing the search query input in the past with the attention word as a search query candidate, the search page, and the like. It can be presented in consideration of the balance with other information.

  Here, the example shown in FIG. 5 shows a case where the number of words of interest is 1 and the presentation unit 134 displays the search query candidate column R12 of the search page W11 for the user search character “A”. The attention word “AAB !!” is presented as a search query candidate. At this time, the presentation unit 134 presents the attention word at the top of the search query candidates. This makes it easier for the user to visually recognize the attention word. Also, by making the number of attention word presentations one, the user's interest in the attention word can be more easily directed. The presentation unit 134 may present the attention word as a search query candidate at an appropriate position according to the purpose, for example, below the uppermost part or near the middle part. Moreover, the presentation unit 134 may select and present a word of interest randomly from a plurality of words of interest exceeding a predetermined frequency or a predetermined score.

  The presentation unit 134 also presents a search query that has been input in the past as a search query candidate along with the word of interest. In the example illustrated in FIG. 5, the presentation unit 134 presents search queries input in the past, such as “A11”, “A12”, and “AB15” received as candidate information, as search query candidates. Specifically, the presenting unit 134 adds the search query “A11”, “A12”, and the search query “A11”, “A12”, which are input in the past to the search query candidate field R12 of the search page W11, following the attention word “AAB!”. “A13” or the like is presented as a search query candidate. At this time, for example, the presentation unit 134 presents search queries input in the past in order from the largest number of searches. Note that the presentation unit 134 may receive, as candidate information, the search query input in the past ranked based on information related to the search query input in the past such as the number of searches. Further, the presentation unit 134 may rank the search queries input in the past to be presented based on information on the search queries input in the past such as the number of searches.

  Thus, the presenting unit 134 presents the attention word and the search query input in the past as search query candidates. Specifically, in the example illustrated in FIG. 5, the presentation unit 134 presents the attention word “AAB !!!!” at the top, and continues to search queries “A11”, “A12”, “A13” input in the past. ”Etc. As a result, the search assist device 100 can provide the user with both the search assist based on the attention word determined to have a high degree of attention in the predetermined danger and the normal search assist based on the search query input in the past.

  From here, the case where the user inputs a character after the search character “A” in the example shown in FIG. 5 will be described. For example, when the user inputs “A” in the search window R11 of the search page W11 following the search character “A”, the reception unit 132 receives the search character “AA”, and the generation unit 133 searches the search character “AA”. Candidate information based on is generated. Thereafter, the presentation unit 134 presents search query candidates to the user based on the candidate information received from the generation unit 133. Specifically, the presentation unit 134 presents the attention word “AAB !!” and the search queries “AA1”, “AA2”, “AA3”, and the like input in the past to the user as search query candidates.

  Subsequently, when the user inputs “B!” After the search character “AA” in the search window R13 of the search page W12, the reception unit 132 receives the search character “AAB !!!!”, and the generation unit 133 Candidate information based on the search character “AAB !!” is generated. Thereafter, the presentation unit 134 presents search query candidates to the user based on the candidate information received from the generation unit 133. Specifically, as shown in FIG. 5, the presentation unit 134 displays the attention word “AAB !!” and the search queries “AAB1” and “AAB2” that have been input in the past in the search query candidate field R14 of the search page W12. "," AAB3 ", etc. are presented to the user as search query candidates. Note that the search pages W10 to W13 shown in FIG. 5 may be the same search page.

  As shown in FIG. 6, when the user inputs “AB” in the search window R20 displayed on the search page W20, the reception unit 132 receives the search character “AB”, and the generation unit 133 searches the search character “AB”. Candidate information based on "is generated. Here, the generation unit 133 corresponds to the search character “AB” and the attention word such as “ABB !!!” extracted from the attention word storage unit 121, and “AB15” and “AB30” extracted from the search information storage unit 122. A plurality of search queries input in the past such as “is provided as candidate information to the presentation unit 134.

  Then, the presentation unit 134 presents search query candidates to the user based on the candidate information received from the generation unit 133. Specifically, the presentation unit 134 corresponds to “AB” input in the search window R21 of the search page W20, the attention word “ABB !!”, and the search query “AB15”, “ AB30 ″ and the like are presented as search query candidates in the search query candidate field R22 of the search page W21. Note that the search pages W20 and W21 shown in FIG. 6 may be the same search page.

(Search unit 135)
The search unit 135 displays a search page on the user terminal 10 when the user performs a search. For example, the search unit 135 displays a search page on the user terminal 10 in response to the user selecting an icon or the like displayed on the user terminal 10. Further, when the user selects a search query candidate presented to the user terminal 10 by the presentation unit 134, the search unit 135 provides the user with a search result obtained by performing a search using the selected candidate as a search query (FIG. 10). reference). At this time, the search unit 135 provides a search result to the user using information stored in the search information storage unit 122, for example.

[3. (Search assist processing procedure)
Next, the procedure of the search assist process by the search system 1 according to the embodiment will be described using FIG. FIG. 7 is a sequence diagram illustrating a search assist processing procedure by the search system 1 according to the embodiment.

  As illustrated in FIG. 7, the extraction device 20 requests acquisition of information regarding web content from the web server 30 (step S <b> 101). The web server 30 transmits information related to web content to the extraction device 20 (step S102). And the extraction apparatus 20 extracts the attention word which is attention information based on the information regarding the acquired web content. Further, the extraction device 20 periodically performs extraction of the attention word at short intervals such as every 10 minutes.

  Next, as shown in FIG. 7, the search assisting device 100 requests the extraction device 20 to acquire information about the attention word (step S103). The extraction device 20 transmits information on the attention word to the search assist device 100 (step S104). Here, the search assist device 100 periodically acquires information related to the attention word from the extraction device 20 at short intervals such as every 10 minutes.

  Subsequently, the search assist device 100 receives an input of a search character from the user terminal 10 (step S105). Here, the user inputs a search character via a search page provided from the search assist device 100 and displayed on the user terminal 10. Specifically, the user inputs a search character into the search window of the search page displayed on the user terminal 10. The search assist device 100 displays a search page on the user terminal 10 in response to, for example, the user selecting an icon or the like displayed on the user terminal 10. Thereafter, the search assist device 100 generates a search query candidate based on the attention word corresponding to the search character input from the user terminal 10 and the search query input in the past (step S106). Then, the search assist device 100 presents the generated search query candidates to the user terminal 10 (step S107). Thereafter, when the user selects a search query candidate presented to the user terminal 10, the search assist device 100 provides the user terminal 10 with a search result obtained by performing a search using the selected candidate as a search query.

[4. (Modification)
The search system 1 according to the above-described embodiment may be implemented in various different forms other than the above-described embodiment. Therefore, in the following, another embodiment of the search system 1 will be described.

[4-1. (Presentation of combination word during input)
In the above embodiment, the search assist device 100 has shown an example in which the attention word is presented as a search query candidate. However, the search assist device 100 is not limited to the attention word, and may combine the attention word with another word and present it as a search query candidate. For example, the search assisting apparatus 100 may use a co-occurrence word that is co-occurrence information that co-occurs with the attention word at a predetermined ratio or more in the information related to the web content as another word combined with the attention word. Hereinafter, a combination of the attention word and another word may be referred to as a combination word. The co-occurrence word is extracted by, for example, collecting information updated by a general user using the SNS service or the like by the extraction device 20 and analyzing the information using various techniques such as morphological analysis. The extraction of co-occurrence words is targeted for information that is updated by a general user, such as a SNS service, or by quoting information related to web content. Even if it is information, if it is the information updated in real time, it is good also as object.

  For example, as illustrated in FIG. 8, the search assisting apparatus 100 may store a co-occurrence word that co-occurs with the attention word in the information related to the web content in the attention word storage unit 121 in association with the attention word. In the example of FIG. 8, the search assisting apparatus 100 uses “KK”, “LLL”, “MM”, etc. as the “co-occurrence words” of the attention word “ABB! And stored in the attention word storage unit 121. Further, the search assist device 100 stores “co-occurrence frequency” indicating the frequency with which the co-occurrence word co-occurs with the attention word in the information regarding the web content in the attention word storage unit 121 in association with each co-occurrence word. . Specifically, the search assist device 100 sets “500” as the co-occurrence frequency of the co-occurrence word “KK”, “450” as the co-occurrence frequency of “LLL”, and “120” as the co-occurrence frequency of “MM”. "Is stored in the attention word storage unit 121.

  Here, for example, the search assist device 100 may compare the co-occurrence frequencies of the co-occurrence words and rank them from the higher co-occurrence frequency. Specifically, the search assisting apparatus 100 ranks “KK” having a higher co-occurrence frequency higher than “LLL” and “MM”. If there is no co-occurrence word having a higher co-occurrence frequency than “KK” in the co-occurrence word, the search assisting apparatus 100 ranks “KK” in the first place. Further, the search assist device 100 may rank the attention words based on the score calculated from the information regarding the co-occurrence words including the co-occurrence frequency. Note that as the information used by the search assist device 100 for calculating the score of the co-occurrence word, an increase rate of the co-occurrence frequency in which the co-occurrence word is used together with the attention word immediately before may be used. In this case, a co-occurrence word having a high rate of increase in the co-occurrence frequency used with the attention word immediately before has a higher score.

  Next, a procedure for presenting a combination word when a user inputs a search character will be described. In the example shown in FIG. 9, when the user inputs the search character “AAB !!!!” in the search window R30 of the search page W30, the attention word corresponding to the search character “AAB !!!!” and the search query input in the past Are presented as search query candidates. At this time, the attention word is presented as a combination word. In the example shown in FIG. 9, since the search character “AAB !!!!” is entered in the search window R31 of the search page W31, the search assisting device 100 reads the attention word “AAB !!!!” in the search query candidate field R32. , A combination word combining “KK” ranked first in the co-occurrence words co-occurring with “AAB !!” is presented to the user as a search query candidate. Specifically, the search assist device 100 presents “AAB !! KK” as a combination of the attention word and the co-occurrence word at the top of the search query candidate column R32 as a search query candidate. In addition, search queries “AAB1”, “AAB2”, “AAB3”, and the like input in the past are also presented in the search query candidate column R32 as search query candidates under the top combination word.

  Thereby, even if it is difficult for the user to understand with only the attention word, the user's interest can be further enhanced by combining the attention word and the co-occurrence word that co-occurs as a search query candidate. . When the user inputs the search character “A”, the search assist device 100 sets “AAB !!! KK” as a combination word combining the attention word and the co-occurrence word corresponding to the search character “AAB !!”. May be presented as search query candidates.

  Here, as a case where it is difficult for the user to understand only with the attention word, for example, there is a case where the attention word is a train route name “˜line”. In this case, it is difficult for the user to understand why the “˜line” is attracting attention by only presenting the attention word “˜line” as a candidate for the search query. Therefore, the search assisting apparatus 100 presents a co-occurrence word that co-occurs with the attention word “˜line”, for example, “delay” or “recovery” as a candidate for a search query, so that the user Line "indicates that there is a delay or that the operation has been resumed, and the search query candidate including the attention word becomes more easily understandable information for the user, and the search query candidate It becomes easy to be selected.

  Further, the search assist device 100 may present only the attention word at the top, and present a combination word obtained by combining the attention word and the co-occurrence word as a search query candidate. In addition, the search assist device 100 may use a word used in combination with the word of interest at a predetermined ratio or more in a search query input in the past as another word to be combined with the word of interest. Further, the search assist device 100 may present the co-occurrence word as a related query related to the attention word. In this case, the search assisting apparatus 100 may combine the co-occurrence word related to the attention word and the co-occurrence word co-occurring at a predetermined ratio or more to present them as a related query. In addition, the search assist device 100 may present a word having a relationship with the attention word as a related query. Note that the search pages W30 and W31 shown in FIG. 9 may be the same search page.

[4-2. Presentation of combination word after search execution)
Further, after the search is executed, the search assist device 100 may present a combination word obtained by combining the attention word and the co-occurrence word as a search query candidate.

  In the example illustrated in FIG. 10, the search assisting apparatus 100 performs a search when the user inputs the search character “AAB !!!!” in the search window R35 of the search page W35 and then presses the “search” button on the search page W35. A search page for displaying a search result corresponding to the query “AAB !!” is displayed on the user terminal 10. In the example shown in FIG. 10, the search assisting apparatus 100 displays the search query “AAB !!!!” in the search window R36 displayed on the search page W36, and the search query “AAB !!!!” in the search result column R37. Post search results corresponding to. Then, the search assisting apparatus 100 presents a combination word corresponding to the search query “AAB !!” as a search query candidate in the narrow search field R38 displayed on the search page W36. Specifically, the search assisting apparatus 100 presents “AAB! KK” as a combination of the attention word and the co-occurrence word as a search query candidate at the top of the search result column R37. In the example illustrated in FIG. 10, the search assistance device 100 presents the combination word on the leftmost side of the search result column R37. Further, in the refined search field R38, the combination word “AAB !! KK” is followed by a combination of a word used in combination with a word of interest and a predetermined ratio or more in a search query input in the past. It may be presented as a candidate. In the example illustrated in FIG. 10, the search assisting apparatus 100 uses “AAB !! C1”, “AAB !! C2”, etc., as a search query candidate after the combination word “AAB !! KK”. To present.

  Thereby, even if it is difficult for the user to understand with only the attention word, the user's interest can be further enhanced by combining the attention word and the co-occurrence word that co-occurs as a search query candidate. . In addition, since the search assist device 100 combines a word of interest and a word used in combination with a predetermined ratio or more in a search query input in the past and presents it as a search query candidate, it receives normal search assist. Can do. In addition, when the user selects a search query candidate presented in the narrow search field R38, the search assist device 100 may provide the user with a result of performing a search using the selected candidate as a search query. Further, the search assist device 100 may present the co-occurrence word as a related query related to the attention word on the search page displaying the search result. In this case, the search assisting apparatus 100 may combine the co-occurrence word related to the word of interest with the co-occurrence word co-occurring at a predetermined ratio or more and present it as a related query. In addition, the search assist device 100 may present a word having a relationship with the attention word as a related query. Further, the search pages W35 and W36 shown in FIG. 10 may be the same search page.

[4-3. (Identity of attention word)
In the above-described embodiment, the search assist device 100 has shown an example in which the attention word and a search query input in the past are presented as search query candidates in the same manner. However, the search assist device 100 may present the attention word so as to be identifiable as attention information.

  As shown in FIG. 11, when the user inputs the search character “A” in the search window R40 of the search page W40, the search assisting device 100 presents the attention word to the user as a search query candidate so as to be identifiable. In other words, the search assist device 100 presents the attention word and the search query input in the past to the user as search query candidates so as to be identifiable. Specifically, when presenting the attention word, the search assist device 100 presents an icon for making the attention word identifiable together with the attention word.

  In the example shown in FIG. 11, the search assisting apparatus 100 corresponds to the search character “A” input in the search window R41 of the search page W41, along with the attention word “AAB !!” in the search query candidate field R42. Present an icon that represents the rise of the chart to the left of the word of interest. In addition, the search assist device 100 also displays an icon that represents a magnifying glass on the left side of search queries “A11”, “A12”, “A13”, etc. that have been input in the past and are presented in the search query candidate field R42. Present. Thereby, the user can identify which of the search query candidates is the attention word. Moreover, the search assistance apparatus 100 may display the area | region where an attention word is shown among the candidates of a search query, and the area | region where the search query input in the past is shown in a different color. For example, the search assisting apparatus 100 may set the color of the area where the attention word is presented to red and the color of the area where the search query input in the past is the same as the background color. Further, the search assist device 100 may display characters of the word of interest and characters of the search query input in the past in different colors. In addition, the search assist device 100 may display the word of interest with a bolder character or a larger number of fonts than a search query character input in the past. Thereby, the search assistance apparatus 100 can make the user identify which word is the attention word, and can direct the user's interest to the attention word. It should be noted that the search assist device 100 may display search query candidates by appropriately selecting and combining the above display modes according to the purpose. Further, the search pages W40 and W41 shown in FIG. 11 may be the same search page.

[4-4. (Change the display of attention word)
In the above-described embodiment, the search assist device 100 has shown an example in which the word of interest is presented as a search query candidate in response to the user's input of search characters. However, the search assist device 100 may select whether to present the attention word according to the state of the user.

  For example, the search assisting apparatus 100 determines the state of the user based on the user terminal 10 that is a device used by the user. For example, if the user terminal 10 used by the user is a smart device such as a smartphone, the search assist device 100 may present the attention word and may not present it if the user terminal 10 is a PC or the like. Further, for example, the search assist device 100 may acquire the user position information from the user terminal 10 or the like, and may determine whether to present the attention word based on the position information. In addition, the search assist device 100 may determine whether to present the attention word based on the time when the search character is input, the number of times of input, or the like.

  Here, the case where the attention word is presented and the case where it is not presented will be described. For example, as shown in FIG. 12A, when the user is working in an office or the like, even if the search character “A” is input to the search window R50 of the search page W50, the search assisting apparatus 100 does Is not presented to the user as a search query candidate in an identifiable manner. In other words, the search assist device 100 presents only search query candidates based on search queries input in the past to the user. Specifically, in the example illustrated in FIG. 12A, the search assist device 100 does not present a word of interest such as “AAB !!” or “ABB !!!” to the user, and the search is input in the past. The queries “A11”, “A12”, “A13” and the like are presented as search query candidates in the search query candidate column R51 of the search page W50. Note that whether or not the user is at work may be determined using the time when the search character is input, the position information of the user, or the like as described above.

  On the other hand, as shown in FIG. 12B, when the user is private such as at home, when the search character “A” is input to the search window R51 of the search page W51, the attention word and the past are input. Search query candidates based on the search query are presented to the user. Specifically, in the example shown in FIG. 12B, the search assisting apparatus 100 adds the attention word “AAB!” To the search queries “A11”, “A12”, “A13”, and the like input in the past. The search query candidates are presented in the search query candidate field R53 of the search page W51. In other words, the word of interest is not presented to a user who is less likely to be interested in the word of interest, such as when the user concentrates on his / her work at work or school. On the other hand, the attention word is presented to a user who has a time margin at home or the like and is likely to pay attention to the attention word. As described above, the search assisting apparatus 100 increases the possibility that the attention word is selected as a candidate for the search query by assigning the attention word depending on the state of the user.

[4-5. (Attention word and number of search characters)
In the above-described embodiment, the search assist device 100 has shown an example in which the word of interest is presented as a search query candidate regardless of the number of search characters input by the user. However, the search assistance device 100 may select whether to present the attention word according to the number of search characters input by the user.

  For example, in the case of being presented together with a search query input in the past exceeding a predetermined number of searches, the attention word may not be presented until the number of search characters is equal to or greater than a predetermined number. In the example shown in FIG. 4, when the search query is presented together with a search query input in the past exceeding 25000 times, the search assist device 100 presents the attention word only when the search character is two or more characters. Specifically, when the user inputs the search character “B”, the search assisting apparatus 100 sets the search query as a search query in which “BG13” in which the search character is one character and the number of searches exceeds 25,000 times is input in the past. Do not present attention word because it corresponds. When the user inputs the search character “BG”, the search assist device 100 presents the attention word corresponding to the search character “BG” because there are two or more search characters. Further, when the user inputs the search character “N”, the search assist device 100 does not correspond to a search query input in the past exceeding the search count of 25000 even if the search character is one character. The attention word corresponding to the character “N” is presented. As a result, the word of interest is displayed at a higher level than the frequently used search query and is displayed at a stage where the number of search characters is small, and it is possible to suppress the user from feeling uncomfortable and perform appropriate search assistance for user input. .

  In addition, the search assist device 100 may select whether to present the attention word according to the number of search characters based only on information about the attention word such as frequency. For example, in the example shown in FIG. 3, when the frequency is less than 500 times, the attention word is presented only when the search character is two or more characters. Specifically, when the user inputs the search character “B”, the search assist device 100 has one search character, but “BBB!” With a frequency of 500 times or more corresponds to the attention word. , The attention word “BBB !!” is presented as a search query candidate. When the user inputs the search character “C”, the search assist device 100 determines that the search word is “CDE!” With one search character and a frequency less than 500 times. Do not present “CDE !!” When the user inputs the search character “CD”, the search assist device 100 presents the attention word “CDE !!” as a search query candidate because there are two or more search characters. Accordingly, it is possible to suppress an unpleasant sensation that is displayed when an attention word with a high degree of attention is not displayed at a stage where the number of search characters is small, and appropriate search assistance can be performed with respect to user input.

  Moreover, in said example, the search assistance apparatus 100 may change the position to present, instead of presenting the attention word. For example, the search assisting apparatus 100 may present the attention word below a search query input in the past exceeding a predetermined number of searches. In addition, it may be determined whether or not to present the attention word by using information regarding the attention word such as the frequency and information regarding the search query input in the past such as the number of searches.

  In addition, the search assist device 100 uses the score of the attention information calculated according to the attention level of the attention word and the score of the search query input in the past calculated according to the number of search query searches input in the past. The attention information selected based on the search query input in the past may be presented as a search query candidate. In this case, the search assist device 100 may vary the score of the attention word corresponding to the input search character according to the amount of information input as the search query, that is, the number of search characters. Specifically, every time the number of search characters increases by one, the search assist device 100 increases the score of the attention word corresponding to the input search character at a predetermined rate. For example, every time the number of search characters increases by one, the search assist device 100 may increase the score of the word of interest by multiplying the score of the word of interest by 1.1 or the like. For example, in the example shown in FIG. 5, when the search character “A” is input to the search window R11 of the search page W11, that is, when the number of search characters is 1, the search query candidate of the search page W11 is based on the calculated score. In the column R12, the attention word, for example, “AAB !!” is presented at a position lower than the highest position, for example, immediately below the highest position. When the search character “AA” is input to the search window R11 of the search page W11, that is, when the number of search characters is 2, the score of the attention word “AAB !!” corresponding to the input search character increases. If the score of the search query input in the past that has been presented at the highest level is exceeded, the attention word, for example, “AAB !!” is presented at the highest position in the search query candidate field R12. Thereby, every time the number of search characters increases, the score of the attention word corresponding to the input search character increases, so that the possibility of exceeding the score of the search query input in the past increases. Therefore, as the number of search characters increases, the search assist device 100 is more likely to present the attention word.

  Further, the search assist device 100 changes the display order of the attention word corresponding to the search character in accordance with the amount of information input as the search query, that is, the number of search characters. Specifically, the search assist device 100 may increase the display order of the attention word every time the number of search characters increases by one character. For example, the search assist device 100 may increase the display order of the attention word by increasing the display order of the attention word by 1 each time the number of search characters increases by one character. For example, in the example shown in FIG. 5, when the search character “A” is input to the search window R11 of the search page W11, that is, when the number of search characters is 1, in the search query candidate column R12 of the search page W11, “AAB !!” is presented at a position lower than the highest position, which is the first rank, for example, two positions below the highest position, which is the third rank. When the search character “AA” is input to the search window R11 of the search page W11, that is, when the number of search characters is 2, the display order of the attention word is increased by 1, so that the attention word, for example, “AAB !!” is presented at the position one level below the highest rank, which is the second rank. Thereafter, when the search character “AAB” is input to the search window R11 of the search page W11, that is, when the number of search characters is 3, the display order of the attention word is further increased by 1, so that the attention word, For example, “AAB !!” is presented at the highest position, which is the highest rank. Thereby, every time the number of search characters increases, the display order of the attention word increases, so that the display order is more likely to exceed the search query input in the past. Therefore, the search assist device 100 presents the attention word at a position where the user is more likely to be interested as the number of search characters increases.

[4-6. (Non-presentation of prohibited characters)
In addition, the search assist device 100 may include a prohibition information storage unit that stores a use prohibition word that is use prohibition information regarding use prohibition. In this case, the search assist device 100 may store the data in the prohibition information storage unit in a predetermined HDD (not shown). Then, the search assist device 100 includes the attention included in the information about the web content whose score calculated according to the use prohibition word stored in the prohibition information storage unit is greater than or equal to a predetermined value among the attention words acquired by the acquisition unit. Present the attention word of the word. Thereby, it can suppress that the attention word contained in the information regarding a web content is shown, and it can prevent that the candidate of an inappropriate search query is shown to a user. The search assist device 100 may store the use prohibition dictionary in advance or may acquire it from the outside. In addition, the search assist device 100 may present a word of interest other than a word corresponding to a predetermined use prohibition. In other words, the search assist device 100 may not present the attention word corresponding to the predetermined use prohibition. For example, when a so-called broadcast-prohibited term or the like is included in the attention word, the search assist device 100 may not present the attention word that includes the broadcast-prohibited term or the like. It should be noted that the search assisting device 100 may remove the attention word corresponding to the use prohibition in advance until the retrieval assisting device 100 acquires the information from the extracting device 20 and presents it. Accordingly, the search assist device 100 can prevent an inappropriate search query candidate from being presented. When presenting the co-occurrence word in combination with the attention word, the search assisting apparatus 100 may not present the co-occurrence word corresponding to the predetermined use prohibition in the same manner as the attention word. Thereby, the search assistance apparatus 100 can prevent an inappropriate search query candidate from being presented to the user. When the search assist device 100 does not have a prohibition information storage unit, the search assist device 100 may acquire a use prohibition word that is use prohibition information related to use prohibition from the outside.

[4-7. (Attention word)
Further, the search assisting device 100 may merge attention words having the same meaning based on information about the attention word acquired from the extraction device 20. For example, if the attention word is a proper noun meaning a celebrity, it includes multiple attention words that mean the same object, such as the full name of the signer, the abbreviation of the name of the celebrity, and the nickname of the celebrity There may be. In such a case, the search assist device 100 merges representative words among the words having the same meaning as the attention word. In the above example, the search assist device 100 may be merged with the full name of the celebrity, for example. In addition, since the word related to a new word such as a word indicating a new concept may not be unified, the search assist device 100 unifies the word related to the new word, and so on. You may merge as an attention word. In addition, the search assist device 100 may use information such as an SNS category and a topic, for example, to determine whether the word is an attention word having the same meaning. Thereby, it can suppress that a some attention word which has the same meaning is shown, and can perform more suitable search assistance with respect to a user's input. Further, the attention word is a buzz word or the like that is input by the user without being aware of the search, and therefore may not be an appropriate word as a search query. Therefore, the search assist device 100 may appropriately process the attention word so that it becomes an appropriate word as a search query. Thereby, the attention word becomes more suitable for the search, and more appropriate search assist can be performed with respect to the user input.

[4-8. (Attention word and co-occurrence word)
In addition, the search assisting apparatus 100 may use a co-occurrence word that is co-occurrence information that co-occurs with the attention word at a predetermined ratio or more in the information about the web content in the evaluation of the attention word. The co-occurrence word is extracted by, for example, collecting information updated by a general user using the SNS service or the like by the extraction device 20 and analyzing the information using various techniques such as morphological analysis. The extraction of co-occurrence words is targeted for information that is updated by a general user, such as a SNS service, or by quoting information related to web content. Even if it is information, if it is the information updated in real time, it is good also as object.

  When the search assist device 100 presents a candidate for a search query from a higher score calculated based on information about the attention word such as the frequency, the co-occurrence is co-occurrence information that co-occurs among attention words that are attention information. It is good also considering the attention words which satisfy | fill a predetermined condition for a word as a related attention word, and making the score of a related attention word the sum total of each score of a related attention word. The predetermined condition here refers to the commonality of co-occurrence words that co-occur in a plurality of attention words, for example, the same co-occurrence word co-occurs in a plurality of attention words with a probability of 50%. You may determine suitably based on. When such a predetermined condition is satisfied, the search assisting apparatus 100 sets those attention words as related attention words, and sets the total score of the scores of the related attention words as the score of the related attention word. For example, in the example shown in FIG. 8, when the attention words “BBB!” And “ABB !!!!” are related attention words that satisfy a predetermined condition, the total score obtained by adding the scores of these two attention words is calculated. , The score of each of the attention words “BBB !!” and “ABB !!!”. As a result, the attention word “ABB !!!” is less frequent than the attention word “AAB !!!”, but the attention word “AAB !!” is added by adding the score of “BBB !!” as the related attention word. More likely to score higher than. Therefore, for example, in the example shown in FIG. 5, when the search character “A” is input to the search window R11 of the search page W11, the attention word “ABB!” Is displayed in the search query candidate column R12 of the search page W11. The possibility of being presented increases. Thereby, a co-occurrence word can be added to the evaluation of the attention word, and a more appropriate attention word can be presented.

  Further, the search assist device 100 uses the score of the attention word calculated according to the attention level of the attention word as attention information and the co-occurrence word as co-occurrence information co-occurring with the attention word as the attention word. If the score of the co-occurrence word and the score of the attention word satisfy a predetermined condition based on the score of the co-occurrence word calculated according to the degree of attention, the attention word may not be used as a search query candidate. Here, the predetermined condition may be that the score of the co-occurrence word is equal to or higher than the score of the attention word. In this case, the search assist device 100 presents the word with the highest score among the words that co-occur with each other as the attention word, and presents the other words only as the co-occurrence words. Thereby, the search assistance apparatus 100 can suppress the co-occurrence word being presented as the attention word and perform more appropriate search assistance with respect to the user input.

  In addition, the search assist device 100 may include a co-occurrence information storage unit that stores information on the co-occurrence word that is the co-occurrence information. In this case, the search assist device 100 may store the data in the co-occurrence information storage unit in a predetermined HDD (not shown). And when the score of the co-occurrence word calculated according to the co-occurrence frequency of the co-occurrence word stored in the co-occurrence information storage unit is equal to or greater than a predetermined value, the search assist device 100 includes the acquired attention word, An attention word that co-occurs with a co-occurrence word stored in the co-occurrence information storage unit at a predetermined ratio or more may be used as a search query candidate. For example, in the example shown in FIG. 8, when the co-occurrence word “KK” is not stored in the co-occurrence information storage unit, the co-occurrence word “KK” does not calculate a score as a co-occurrence word. Therefore, the search assisting apparatus 100 evaluates the attention word “AAB !!” by using scores such as other co-occurrence words “LLL” and “MM”. In other words, by adding the score of the co-occurrence word that co-occurred to the evaluation of the attention word, it is possible to suppress a meaningless character string such as ASCII art from being presented to the user as the attention word. In other words, by adding the co-occurrence information to the evaluation of the attention information, it is possible to prevent an inappropriate attention word from being presented, and to perform more appropriate search assistance with respect to the user input. Further, the search assisting apparatus 100 may evaluate the attention word “AAB !!” using the total score of the co-occurrence words “LLL” and “MM”. In the case where the search assist device 100 does not have the co-occurrence information storage unit, the search assist device 100 may acquire information on the co-occurrence word that is the co-occurrence information from the outside.

[4-9. Target information)
In the above-described embodiment, the case where the word of interest is used as the target information as the character information and the target is given as an example. However, the search assist device 100 is not limited to the character information as the target information, but the information may be image information or video information. It can also be applied to cases. Further, the present invention can also be applied in the case of an image search where the search query is image information.

[4-10. Device configuration〕
Here, the search assist device 100 illustrated in FIG. 2 may not include the attention word storage unit 121 or the search information storage unit 122. Specifically, the search assist device 100 may be connected to a database server that holds the attention word storage unit 121 or the search information storage unit 122. In this case, when the candidate information is provided from the outside, the search assist device 100 may not have the generation unit 133, and the search assist device 100 presents a search query candidate based on the provided candidate information. May be. Further, the provision of a search service that provides a search page and executes a search and the provision of a search assist service that presents search query candidates may be separate devices. In this case, the search assist device 100 may not have the search unit 135. In this case, the search assist device 100 may not store information related to a search service such as a search page in the search information storage unit 122.

[4-11. program〕
Further, the search assist device 100 according to the embodiment described above is realized by a computer 1000 having a configuration as shown in FIG. 13, for example. FIG. 13 is a hardware configuration diagram illustrating an example of a computer 1000 that implements the functions of the search assist device 100. The computer 1000 includes a CPU 1100, RAM 1200, ROM 1300, HDD 1400, communication interface (I / F) 1500, input / output interface (I / F) 1600, and media interface (I / F) 1700.

  The CPU 1100 operates based on a program stored in the ROM 1300 or the HDD 1400 and controls each unit. The ROM 1300 stores a boot program executed by the CPU 1100 when the computer 1000 is started up, a program depending on the hardware of the computer 1000, and the like.

  The HDD 1400 stores programs executed by the CPU 1100, data used by the programs, and the like. The communication interface 1500 receives data from other devices via the communication network 40 and sends the data to the CPU 1100, and transmits the data generated by the CPU 1100 to other devices via the communication network 40.

  The CPU 1100 controls an output device such as a display and a printer and an input device such as a keyboard and a mouse via the input / output interface 1600. The CPU 1100 acquires data from the input device via the input / output interface 1600. In addition, the CPU 1100 outputs the generated data to the output device via the input / output interface 1600.

  The media interface 1700 reads a program or data stored in the recording medium 1800 and provides it to the CPU 1100 via the RAM 1200. The CPU 1100 loads such a program from the recording medium 1800 onto the RAM 1200 via the media interface 1700, and executes the loaded program. The recording medium 1800 is, for example, an optical recording medium such as a DVD (Digital Versatile Disc) or PD (Phase change rewritable disk), a magneto-optical recording medium such as an MO (Magneto-Optical disk), a tape medium, a magnetic recording medium, or a semiconductor memory. Etc.

  For example, when the computer 1000 functions as the search assist device 100 according to the embodiment, the CPU 1100 of the computer 1000 implements the function of the control unit 130 by executing a program loaded on the RAM 1200. The HDD 1400 stores data in the attention word storage unit 121 and the search information storage unit 122. The CPU 1100 of the computer 1000 reads these programs from the recording medium 1800 and executes them. However, as another example, these programs may be acquired from other devices via the communication network 40.

[4-12. Others]
In addition, among the processes described in the above embodiment, all or part of the processes described as being automatically performed can be performed manually, or the processes described as being performed manually can be performed. All or a part can be automatically performed by a known method. In addition, the processing procedures, specific names, and information including various data and parameters shown in the document and drawings can be arbitrarily changed unless otherwise specified. For example, the various types of information illustrated in each drawing is not limited to the illustrated information.

  Further, each component of each illustrated apparatus is functionally conceptual, and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. For example, the acquisition unit 131 and the reception unit 132 illustrated in FIG. 2 may be integrated.

  Moreover, each embodiment mentioned above can be combined suitably in the range which does not contradict a process content.

[4-13. effect〕
As described above, the search assistance device 100 according to the embodiment includes the acquisition unit 131 and the presentation unit 134. The acquisition unit 131 acquires attention information that has been determined to be noticed in a predetermined period based on information related to web content and including information other than a search query input in the past. The presentation unit 134 presents the attention information corresponding to the information input as the search query as a search query candidate.

  Thereby, the search assistance apparatus 100 according to the embodiment can appropriately assist the input when the user performs a search.

  Further, in the search assist device 100 according to the embodiment, the presentation unit 134 presents the attention information so as to be identifiable as the attention information.

  Thereby, the search assistance apparatus 100 according to the embodiment can direct the user's interest to the attention word.

  Moreover, in the search assistance apparatus 100 according to the embodiment, the presentation unit 134 is based on the number of searches that is the number of times the search query input in the past is used for the search from the search queries input in the past. Presents selected search queries entered in the past.

  Thereby, the search assistance apparatus 100 which concerns on embodiment can provide the search assistance using an attention word to a user in addition to the normal search assistance using the search query input in the past.

  In the search assist device 100 according to the embodiment, the presentation unit 134 is calculated according to the attention level of the attention information among the attention information acquired by the acquisition unit and the search query input in the past. The attention information selected based on the score of the attention information and the score of the search query input in the past calculated according to the number of searches of the search query input in the past are input in the past. The search query is presented as a candidate for the search query.

  Thereby, the search assistance apparatus 100 according to the embodiment can appropriately assist the input when the user performs a search.

  Further, in the search assist device 100 according to the embodiment, the presentation unit 134 varies the score of the attention information corresponding to the input information according to the amount of information input as the search query.

  Thereby, the search assist apparatus 100 according to the embodiment can further increase the possibility that the attention word is presented according to the number of search characters.

  Moreover, in the search assistance apparatus 100 according to the embodiment, the presentation unit 134 changes the display order of the attention information corresponding to the input information according to the amount of information input as the search query.

  Thereby, the search assistance apparatus 100 according to the embodiment can direct the user's interest to the attention word according to the number of search characters.

  Further, in the search assist device 100 according to the embodiment, the acquisition unit 131 acquires co-occurrence information that co-occurs with attention information and at a predetermined ratio or more in information regarding web content. The presenting unit 134 sets attention information items that satisfy co-occurrence information satisfying a predetermined condition among the attention information as related attention information, and sets a total score obtained by adding the scores of the related attention information as a score of the related attention information.

  Thereby, the search assistance apparatus 100 which concerns on embodiment can evaluate together common attention information, and can perform more suitable search assistance with respect to a user.

  In the search assist device 100 according to the embodiment, the presentation unit 134 presents the attention information when information input as a search query exceeds a predetermined amount.

  Accordingly, the search assist device 100 according to the embodiment suppresses the display of an attention word that is not high in the attention level when the number of search characters is small and gives the user a sense of incongruity, and appropriate search assistance for the user input. It can be performed.

  In addition, the search assist device 100 according to the embodiment includes a prohibition information storage unit. The prohibition information storage unit stores use prohibition information regarding use prohibition. Of the attention information acquired by the acquisition unit, the presentation unit 134 includes information other than the attention information included in the information related to the web content whose score calculated according to the use prohibition information stored in the prohibition information storage unit is a predetermined value or more. Present attention information.

  Thereby, the search assistance apparatus 100 according to the embodiment can prevent an inappropriate search query candidate from being presented to the user.

  Further, in the search assist device 100 according to the embodiment, the presentation unit 134 presents attention information corresponding to information being input as a search query as a search query candidate.

  Thereby, the search assistance apparatus 100 according to the embodiment can present search query candidates to the user even when a search character is being input.

  Further, in the search assist device 100 according to the embodiment, the acquisition unit 131 acquires co-occurrence information that co-occurs with attention information and at a predetermined ratio or more in information regarding web content. The presentation unit 134 presents information obtained by combining attention information and the co-occurrence information as a search query candidate.

  Thereby, in the search assist device 100 according to the embodiment, the candidate of the search query including the co-occurrence word becomes information that allows the user to easily understand the meaning, and the candidate of the search query is easily selected.

  In the search assistance device 100 according to the embodiment, the acquisition unit 131 acquires co-occurrence information that co-occurs with the attention information at a predetermined ratio or more in the information about the web content. The presentation unit 134 presents information obtained by combining the attention information and the co-occurrence information as a search query candidate after executing the search based on the attention information.

  Thereby, in the search assist device 100 according to the embodiment, the candidate of the search query including the co-occurrence word becomes information that allows the user to easily understand the meaning, and the candidate of the search query is easily selected.

  In the search assist device 100 according to the embodiment, the presentation unit 134 uses the attention information score calculated according to the attention level of the attention information and the co-occurrence information co-occurring with the attention information as the attention information. If the co-occurrence information score and the attention information score satisfy a predetermined condition based on the co-occurrence information score calculated according to the attention level, the attention information is not regarded as a search query candidate.

  Thereby, the search assistance apparatus 100 according to the embodiment can suppress the co-occurrence information from being presented as attention information and perform more appropriate search assistance for the user.

  In addition, the search assist device 100 according to the embodiment includes a co-occurrence information storage unit. The co-occurrence information storage unit stores information regarding the co-occurrence information. When the score of the co-occurrence information calculated according to the co-occurrence frequency of the co-occurrence information stored in the co-occurrence information storage unit is equal to or greater than a predetermined value, the presentation unit 134 includes the attention information acquired by the acquisition unit. The attention information that co-occurs with the co-occurrence information stored in the co-occurrence information storage unit at a predetermined ratio or more is set as a search query candidate.

  Thereby, the search assistance apparatus 100 according to the embodiment suppresses the presentation of inappropriate attention information by adding the co-occurrence information to the attention information evaluation, and provides more appropriate search assistance to the user. It can be carried out.

  Moreover, in the search assistance apparatus 100 according to the embodiment, the presentation unit 134 presents the attention information when the user's state satisfies a predetermined condition based on information about the user who inputs the search query.

  Thereby, the search assistance apparatus 100 according to the embodiment increases the possibility that the attention word is selected as a candidate for the search query by dividing the attention word according to the state of the user, and more appropriate search assistance for the user. It can be performed.

  In the search assistance device 100 according to the embodiment, the presentation unit 134 presents attention information when it is determined that the user is using a predetermined device.

  Thereby, the search assistance device 100 according to the embodiment increases the possibility that the attention word is selected as a candidate for the search query by dividing the attention word depending on the device used by the user, and is more appropriate for the user. Search assistance can be performed.

  In the search assist device 100 according to the embodiment, the presentation unit 134 presents attention information when it is determined that the user is located in a predetermined area.

  Thereby, the search assist device 100 according to the embodiment increases the possibility that the attention word is selected as a candidate for the search query by dividing the attention word according to the position of the user, and more appropriate search assistance for the user. It can be performed.

  In the search assistance device 100 according to the embodiment, the presentation unit 134 presents attention information when it is determined that the input from the user is performed at a predetermined time.

  Thereby, the search assistance apparatus 100 according to the embodiment increases the possibility that the attention word is selected as a candidate for the search query by dividing the attention word according to time, and performs more appropriate search assistance for the user. be able to.

  In the search assist device 100 according to the embodiment, the presentation unit 134 presents attention information when it is determined that the input from the user has been performed more than a predetermined number of times.

  Accordingly, the search assist device 100 according to the embodiment increases the possibility that the attention word is selected as a candidate for the search query by dividing the attention word according to the number of times the user has input, and more appropriate search for the user. Assist can be performed.

  As described above, some of the embodiments of the present application have been described in detail with reference to the drawings. However, these are merely examples, and various modifications based on the knowledge of those skilled in the art including the aspects described in the disclosure line of the invention, It is possible to implement the present invention in other forms with improvements.

  In addition, the above-mentioned “section (module, unit)” can be read as “means” or “circuit”. For example, the acquisition unit can be read as acquisition means or an acquisition circuit.

DESCRIPTION OF SYMBOLS 1 Search system 10 User terminal 20 Extraction device 30 Web server 100 Search assist device 121 Attention word storage part 122 Search information storage part 131 Acquisition part 132 Reception part 133 Generation part 134 Presentation part 135 Search part

Claims (21)

Attention information determined to be noticed by another user who is different from the user who uses the terminal device in a predetermined period based on information including information other than a search query input in the past, which is information related to web content. An acquisition unit to acquire;
A predetermined number of the attention information corresponding to information input as a search query, the attention information whose display availability and display position fluctuate according to the past number of times of use of the search query displayed together with the attention information ; A presenting unit that presents a predetermined number of search queries based on a search query history to a user who uses the terminal device as a search query candidate;
A search device comprising: The presenting unit
Presenting the attention information so as to be identifiable as the attention information;
The search device according to claim 1. The presenting unit
As the predetermined number of search queries, the search queries input in the past are selected from the search queries input in the past based on the number of searches that are the number of times the search query has been used for the search. Present a search query,
The search device according to claim 1, wherein the search device is a search device. The presenting unit
Of the attention information acquired by the acquisition unit and the search query input in the past, the score of the attention information calculated according to the attention level of the attention information, and the search query input in the past Presenting as a candidate for the search query the attention information selected based on the score of the search query input in the past calculated according to the number of searches and the search query input in the past,
The search device according to claim 3. The presenting unit
According to the amount of information input as the search query, the score of attention information corresponding to the input information is changed.
The search device according to claim 4, wherein: The presenting unit
The display order of the attention information corresponding to the input information is changed according to the amount of information input as the search query.
The search device according to claim 4 or 5, wherein The acquisition unit
In the information about the web content, obtain co-occurrence information that co-occurs with the attention information at a predetermined ratio or more,
The presenting unit
Of the attention information, the co-occurrence information that co-occurs satisfies the attention information satisfying a predetermined condition as related attention information, and the total score obtained by adding the scores of the related attention information is the score of the related attention information.
The search device according to any one of claims 4 to 6, wherein The presenting unit
Presenting the attention information when the information input as the search query exceeds a predetermined amount;
The search device according to any one of claims 1 to 7. Prohibition information storage unit for storing prohibition information related to prohibition of use,
Further comprising
The presenting unit
Of the attention information acquired by the acquisition unit, attention information other than the attention information included in the information about the web content whose score calculated according to the use prohibition information stored in the prohibition information storage unit is a predetermined value or more Present,
The search device according to any one of claims 1 to 8, wherein: The presenting unit
Present attention information corresponding to information being input as a search query as a candidate for the search query,
The search device according to any one of claims 1 to 9, wherein: Attention information determined to be noticed by another user who is different from the user who uses the terminal device in a predetermined period based on information including information other than a search query input in the past, which is information related to web content. An acquisition unit to acquire;
A presentation unit that presents a predetermined number of the attention information corresponding to information input as a search query and a predetermined number of search queries based on the history of the search query to a user who uses the terminal device as search query candidates;
With
The acquisition unit
In the information about the web content, obtain co-occurrence information that co-occurs with the attention information at a predetermined ratio or more,
The presenting unit
Presenting the combination of the attention information and the co-occurrence information corresponding to the information being input as a search query as candidates for the search query;
Search device you wherein a. Attention information determined to be noticed by another user who is different from the user who uses the terminal device in a predetermined period based on information including information other than a search query input in the past, which is information related to web content. An acquisition unit to acquire;
A presentation unit that presents a predetermined number of the attention information corresponding to information input as a search query and a predetermined number of search queries based on the history of the search query to a user who uses the terminal device as search query candidates;
With
The acquisition unit
In the information about the web content, obtain co-occurrence information that co-occurs with the attention information at a predetermined ratio or more,
The presenting unit
After execution of the search based on the attention information, information combining the attention information and the co-occurrence information is presented as a candidate for the search query.
Search device you wherein a. The presenting unit
The score of the attention information calculated according to the attention degree of the attention information and the score of the co-occurrence information calculated according to the attention degree when the co-occurrence information co-occurring with the attention information is the attention information. If the score of the co-occurrence information and the score of the attention information satisfy a predetermined condition, the attention information is not regarded as a candidate for the search query.
The search device according to claim 11 or 12, characterized in that: A co-occurrence information storage unit for storing information on the co-occurrence information;
Further comprising
The presenting unit
When the score of the co-occurrence information calculated according to the co-occurrence frequency of the co-occurrence information stored in the co-occurrence information storage unit is equal to or greater than a predetermined value, among the attention information acquired by the acquisition unit, The attention information that co-occurs at a predetermined ratio or more with the co-occurrence information stored in the co-occurrence information storage unit is set as a candidate for the search query,
The search device according to any one of claims 11 to 13, characterized in that: The presenting unit
Presenting the attention information when the state of the user satisfies a predetermined condition based on information about the user who inputs a search query;
The search device according to any one of claims 1 to 14, wherein: The presenting unit
Presenting the attention information when it is determined that the user is using a predetermined device;
The search device according to claim 15. The presenting unit
Presenting the attention information when it is determined that the user is located in a predetermined area;
The search device according to claim 15 or 16, characterized in that: The presenting unit
When it is determined that the input from the user is performed at a predetermined time, the attention information is presented.
The search device according to any one of claims 15 to 17, wherein: The presenting unit
Presenting the attention information when it is determined that the input from the user has been performed more than a predetermined number of times;
The search device according to any one of claims 15 to 18, wherein A search method performed by a computer,
Based on information including information other than a search query input in the past, the control unit is determined to have received attention from another user who is different from the user who uses the terminal device during the predetermined period. An acquisition step of acquiring attention information and storing it in a storage unit;
A predetermined number of the attention information corresponding to information input as a search query, the attention information whose display availability and display position fluctuate according to the past number of times of use of the search query displayed together with the attention information ; A presenting step of presenting a predetermined number of search queries based on a search query history as a search query candidate to a user using the terminal device;
The search method characterized by including. A search program to be executed by a computer,
Based on information including information other than a search query input in the past, the control unit is determined to have received attention from another user who is different from the user who uses the terminal device during the predetermined period. An acquisition procedure for acquiring attention information and storing it in a storage unit
A predetermined number of the attention information corresponding to information input as a search query, the attention information whose display availability and display position fluctuate according to the past number of times of use of the search query displayed together with the attention information ; A presentation procedure for presenting a predetermined number of search queries based on a history of search queries to a user who uses the terminal device as search query candidates;
A search program characterized by causing a computer to execute.

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