CN105979089A - Method and device for clearing short messages - Google Patents

Abstract

The invention discloses a method and device for clearing short messages, wherein the method includes: scanning the short messages in a mobile terminal; for each scanned short message, judging the category of the short message based on a classification engine; The short messages are classified and displayed according to categories; in response to the user's operation of selecting one or more categories, the selected one or more categories of short messages are deleted. This solution displays multiple short messages belonging to the same category with one category information, which greatly simplifies the display method of short messages, sorts out the category status of short messages contained in mobile terminals for users, and enables users to batch batches directly according to the categories to which short messages belong Delete text messages without deleting text messages one by one, which improves the efficiency of text message cleaning.

Description

A method and device for clearing short messages

technical field

The invention relates to the technical field of the Internet, in particular to a method and device for clearing short messages.

Background technique

With the continuous development of mobile Internet technology and the further reduction of terminal tariffs, the ability and frequency of users to use SMS services have been greatly improved, and the emerging terminal applications and terminal processing technologies have also spawned new types of SMS services. With the growth of user demand, various types of short message services have penetrated into daily life, and the number of various short messages in the mailbox of the mobile terminal has increased sharply, which greatly consumes the memory of the mobile terminal, causing the mobile terminal to run slower, and Junk text messages bring many troubles and inconveniences to users. In the prior art, users can only choose to delete unnecessary short messages one by one, or borrow one by one mark to delete them. It is very inconvenient, the cleaning efficiency is extremely low, and it is difficult to meet the needs of users.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a solution to overcome the above problems or at least partly solve the above problems.

According to one aspect of the present invention, a method for clearing short messages is provided, wherein the method includes:

Scan the text messages in the mobile terminal;

For each text message scanned, judge the category of the text message based on the classification engine;

Classify and display the short messages in the mobile terminal according to categories;

In response to the user's operation of selecting one or more categories, the short messages of the selected one or more categories are deleted.

Optionally, the method further includes:

In response to the user's operation of selecting one or more short messages in a category, the selected one or more short messages in the category are deleted.

Optionally, the method further includes: for each scanned short message, obtaining information in the short message indicating whether the short message has been read;

Then, the classifying and displaying the short messages in the mobile terminal according to categories further includes: for each short message that is classified and displayed, displaying an identifier corresponding to information indicating whether the short message has been read.

Optionally, before the category of the short message is judged based on the classification engine, the method further includes:

Obtain the text corresponding to the sender field in the short message, and judge whether the text corresponding to the sender field hits the address book in the mobile terminal, if so, no longer execute the step of judging the category of the short message based on the classification engine.

Optionally, before the category of the short message is judged based on the classification engine, the method further includes:

Obtain the text corresponding to the sender field in the text message;

If the text corresponding to the sender field matches the phone number indicating the specified category, it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.

Optionally, the method further includes:

When the short message in the mobile terminal is deleted, the short message is scanned, the original storage path of the short message is recorded, and the information corresponding to the short message is stored in the deleted short message database; wherein, the information corresponding to the short message includes the following one or Various: information indicating whether the short message has been read, sending/receiving time information of the short message, text corresponding to the sender field, text corresponding to the recipient field, and text corresponding to the text field in the short message;

In response to the user's operation of selecting a short message in the deleted short message database for recovery, the information corresponding to the short message is written into the original storage path.

Optionally, the scanning the short message in the mobile terminal includes: obtaining the short message reading authority in the mobile terminal by calling the first designated interface, and scanning the short message in the mobile terminal;

The writing the information corresponding to the short message into the original storage path includes: obtaining the short message write permission in the mobile terminal by calling the second specified interface, and writing the information corresponding to the short message into the original storage path;

Wherein, if the calling of the first designated interface/the second designated interface fails, push information prompting the user to enable the first designated interface/the second designated interface.

Optionally, the deletion of one or more categories of short messages to be selected includes:

By calling the third specified interface to obtain the permission to delete the short message in the mobile terminal, the selected one or more types of short messages will be deleted; wherein, if the third specified interface fails to be called, the user will be pushed to prompt to open the information of the third specified interface;

and / or,

Push information to the user prompting to change the default SMS application settings, obtain the relevant permissions of the default SMS application, and delete one or more categories of SMS messages that have been deleted; then push information to the user prompting to restore the default SMS application settings.

Optionally, said judging the short message category based on the classification engine includes:

Obtain the text corresponding to the text field in the text message;

Acquiring N-dimensional feature vectors corresponding to N specified keywords according to the text corresponding to the text field;

The N-dimensional feature vector is input into the classification engine to calculate the category of the short message.

Optionally, the classification engine includes a plurality of classification functions, each classification function corresponding to a category;

Then said inputting the N-dimensional feature vector into the classification engine, and calculating the category of the short message includes: respectively substituting the N-dimensional feature vector into each classification function in the classification engine for calculation, and obtaining multiple Calculation results; comparing the multiple calculation results, selecting the classification function corresponding to the largest calculation result, and using the category corresponding to the classification function as the category of the short message.

Optionally, the obtaining N-dimensional feature vectors corresponding to N specified keywords according to the text corresponding to the text field includes:

Calculate the weight corresponding to each specified keyword in the text, and use the set of weights corresponding to the N specified keywords as the N-dimensional feature vector of the short message.

Optionally, the calculation of the weight corresponding to each specified keyword in the text includes:

Segment the text into single characters to obtain character strings with corresponding order;

Starting from one end of the word string, selecting a field of a first preset length, and judging whether the selected field matches the N specified keywords;

If not, shorten the first preset length to the second preset length, select a field of the second preset length from the beginning of the selected first preset length, and determine whether the selected field hits the N Specify keywords; and so on, until the N specified keywords are hit;

If so, record the hit keyword; start from one end of the remaining word string, repeat the above-mentioned step of selecting the first preset length field, and judge whether the selected field hits the steps of the N specified keywords;

And so on, until the length of the remaining string is zero;

According to the number of hits of each keyword in the N specified keywords, the corresponding weights of the N specified keywords in the text are respectively obtained.

Optionally, the method further includes:

The classification engine, the phone number indicating the designated category, and/or the N designated keywords are acquired from a server side.

Optionally, the method further includes:

Every preset statistical period, obtain an update plug-in from the server side, and the update plug-in is configured with: the classification engine, the phone number indicating the specified category, and/or the updated data of the specified keyword;

Utilizing the update plug-in to update the classification engine, the phone number indicating the specified category, and/or the specified keyword.

According to another aspect of the present invention, a device for clearing short messages is provided, wherein the device includes:

The scanning unit is suitable for scanning short messages in the mobile terminal;

The classification unit is adapted to judge the category of the short message based on the classification engine for each scanned short message;

The display unit is suitable for classifying and displaying the short messages in the mobile terminal according to categories;

The cleaning unit is adapted to delete short messages of one or more categories selected in response to the user's operation of selecting one or more categories.

Optionally, the cleaning unit is further adapted to delete the selected one or more short messages in a category in response to the user's operation of selecting one or more short messages in a category.

Optionally, the display unit is further adapted to obtain, for each scanned short message, information indicating whether the short message has been read; when classifying and displaying the short messages in the mobile terminal according to categories, also For each text message that is classified and displayed, display the identifier corresponding to the information indicating whether the text message has been read.

Optionally, the classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is determined based on the classification engine, and determine whether the text corresponding to the sender field hits the mobile address book in the terminal, if so, the step of judging the category of the short message based on the classification engine is no longer performed.

Optionally, the classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine; if the text corresponding to the sender field is specified by the instruction If the phone number of the category matches, then it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.

Optionally, the scanning unit is further adapted to scan the short message in the mobile terminal when the short message is deleted, record the original storage path of the short message, and store the information corresponding to the short message into the deleted short message database; Wherein, the information corresponding to the short message includes one or more of the following: information indicating whether the short message has been read, information on the sending/receiving time of the short message, text corresponding to the sender field in the short message, and text corresponding to the recipient field. The text corresponding to the text field of the text, the text corresponding to the text field; and it is suitable for writing the information corresponding to the short message into the original storage path in response to the operation of restoring the short message in the deleted short message database by the user.

Optionally, the scanning unit is adapted to obtain the text message reading authority in the mobile terminal by calling the first designated interface, and scan the text messages in the mobile terminal; and is adapted to obtain the text message in the mobile terminal by calling the second designated interface. Short message write permission, write the information corresponding to the short message into the original storage path; wherein, if the call of the first specified interface/second specified interface fails, push the information prompting the user to open the first specified interface/second specified interface.

Optionally, the cleaning unit is adapted to obtain the short message deletion authority in the mobile terminal by calling the third specified interface, and delete the selected one or more categories of short messages; wherein, if the third specified interface fails to call, send The user pushes information prompting to open the third specified interface; and/or, it is suitable for pushing information prompting the user to change the default SMS application settings, obtaining relevant permissions of the default SMS application, and deleting one or more types of SMS messages that will be deleted, Then push the information prompting the user to restore the default SMS application settings.

Optionally, the classification unit is adapted to obtain the text corresponding to the text field in the short message; according to the text corresponding to the text field, obtain an N-dimensional feature vector corresponding to N specified keywords; the N-dimensional feature vector input into the classification engine to calculate the category of the short message.

Optionally, the classification engine includes a plurality of classification functions, each classification function corresponding to a category;

The classification unit is suitable for substituting the N-dimensional feature vector into each classification function in the classification engine for calculation to obtain multiple calculation results; comparing the multiple calculation results, selecting the corresponding maximum calculation result A classification function, the category corresponding to the classification function is used as the category of the short message.

Optionally, the classification unit is adapted to calculate the weight corresponding to each specified keyword in the text corresponding to the text field in the text message, and use the set of weights corresponding to the N specified keywords as the N-dimensional content of the text message Feature vector.

Optionally, the classification unit is adapted to perform single-word segmentation on the text corresponding to the text field in the short message to obtain a word string with a corresponding sequence; starting from one end of the word string, select a field with a first preset length , judging whether the selected field hits the N specified keywords; if not, shortening the first preset length to a second preset length, and selecting the second preset length from the beginning of the selected first preset length Set the length of the field to judge whether the selected field hits the N specified keywords; and so on until the N specified keywords are hit; if so, record the keywords that hit; from one end of the remaining word string Start by repeating the above-mentioned steps of selecting the first preset length of the field, and judging whether the selected field hits the N specified keywords; and so on until the remaining string length is zero; according to the N specified keywords The number of hits of each keyword in the text is used to obtain the corresponding weights of the N specified keywords in the text.

Optionally, the device further includes:

The interaction unit is adapted to acquire the classification engine, the phone number indicating the specified category, and/or the N specified keywords from the server side.

Optionally, the interaction unit is further adapted to obtain an update plug-in from the server every preset statistical period, and the update plug-in is configured with: the classification engine, the phone number indicating the specified category, and/or The updated data of the specified keywords; using the update plug-in to update the classification engine, the phone number indicating the specified category, and/or the specified keywords.

According to the technical solution of the present invention, scan the short messages in the mobile terminal, judge the short message category based on the classification engine, classify and display the short messages in the mobile terminal, and display multiple short messages belonging to the same category with one category information, which is very convenient Dadi simplifies the way of displaying short messages and sorts out the category status of short messages contained in mobile terminals for users, so that users can directly delete short messages in batches according to the categories to which short messages belong without deleting short messages one by one, which improves the efficiency of short message cleaning.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

Fig. 1 shows a flow chart of a method for clearing short messages according to an embodiment of the present invention;

Fig. 2 shows a flow chart of a method for classifying short messages in a mobile terminal according to an embodiment of the present invention;

FIG. 3 shows a schematic diagram of a server using a support vector machine method to generate a binary classification engine according to an embodiment of the present invention;

Fig. 4 shows a schematic diagram of a device for clearing short messages according to an embodiment of the present invention;

Fig. 5 shows a schematic diagram of an apparatus for clearing short messages according to another embodiment of the present invention.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Fig. 1 shows a flowchart of a method for clearing short messages according to an embodiment of the present invention. As shown in Figure 1, the method includes:

Step S110, scanning the short message in the mobile terminal.

Step S120, for each scanned short message, judge the category of the short message based on the classification engine.

Step S130, classifying and displaying the short messages in the mobile terminal according to categories.

Step S140, in response to the user's operation of selecting one or more categories, delete the selected one or more categories of short messages.

It can be seen that the method shown in Figure 1 scans the short messages in the mobile terminal, judges the short message category based on the classification engine, classifies and displays the short messages in the mobile terminal, and displays multiple short messages belonging to the same category with one category information, It greatly simplifies the display mode of short messages, and sorts out the category status of short messages contained in mobile terminals for users, so that users can directly delete short messages in batches according to the categories to which short messages belong without deleting short messages one by one, which improves the efficiency of short message cleaning.

In one embodiment of the present invention, the method shown in FIG. 1 further includes: in response to the user's operation of selecting one or more short messages in a category, deleting the selected one or more short messages in the category. According to this embodiment, the user can not only directly delete all short messages of one or more categories, but also select one or more short messages in each category to delete, which has great flexibility and meets user needs.

In one embodiment of the present invention, after the short message in the mobile terminal is scanned, for each short message scanned, the information indicating whether the short message has been read in the short message can be further obtained; When the short messages are classified and displayed according to categories, for each short message that is classified and displayed, an identifier corresponding to the information indicating whether the short message has been read is displayed. For example, when displaying text messages belonging to the verification code category, mark the "read" or "unread" mark of each text message, so that users can know whether each text message has been read or not, and avoid unread text messages that have practical significance. SMS deleted.

In the method shown in Fig. 1, the step of scanning the short message in the mobile terminal is the step of reading the short message from the system short message database of the mobile terminal, the execution of this step needs to be adapted to the system of the mobile terminal, and the text message reading permission, including: under normal circumstances, the mobile terminal system manages the text message reading permission and provides the first designated interface to the outside. A designated interface obtains the text message reading authority in the mobile terminal, and scans the text messages in the mobile terminal; but in some cases, the user closes the first designated interface through settings, so that the first designated interface cannot be called successfully. At this time, in order to Obtain the permission to read the short message, push a prompt message to the user, and prompt the user to open the first specified interface in the prompt message.

In the method shown in Figure 1, deleting the short message of one or more categories selected is the step of deleting the short message from the system short message database of the mobile terminal, and the execution of this step needs to be adapted to the system of the mobile terminal to obtain the SMS deletion permission, including the following two methods:

Method 1: The system of the mobile terminal manages the deletion authority of the short message and provides a third designated interface to the outside. The device of this solution will apply for the deletion right of the short message by default during installation, and obtain the deletion right of the short message in the mobile terminal by calling the third designated interface , to delete one or more categories of text messages selected; but in some cases, the user closes the third designated interface through settings, so that the third designated interface cannot be called successfully. At this time, in order to obtain the SMS deletion permission, push Prompt information, in which the user is prompted to enable the third specified interface.

Method 2. For some systems, only the default SMS application in the current system has the SMS deletion permission. At this time, in order to obtain the SMS deletion permission, a prompt message is pushed to the user, and the user is prompted to change the settings of the default SMS application in the prompt message. Set the application corresponding to this solution as the default SMS application, so as to obtain the permission to delete SMS messages. After deleting one or more types of SMS messages that have been deleted, push a reminder message to the user to remind the user to restore the original settings of the default SMS application. , so as to avoid affecting subsequent SMS processing.

For example, systems with versions below Android 4.4 are applicable to the above method 1 for adaptation to obtain the system’s SMS deletion authority; and systems with Android 4.4 and above are applicable to the above method 2 for adaptation to obtain the system’s SMS deletion authority.

In one embodiment of the present invention, before the method shown in FIG. 1 judges the category of the short message based on the classification engine, it further includes: obtaining the text corresponding to the sender field in the short message, and judging the text corresponding to the sender field. Whether the text hits the address book in the mobile terminal, if so, the step of judging the category of the short message based on the classification engine is no longer performed. According to this embodiment, not only to scan the text messages in the mobile terminal, but also to read the address book in the mobile terminal, for each text message scanned, if the phone number corresponding to the sender field in the text message is in the address book The phone number of the recorded contact indicates that the text message is a daily text message of the current user, and it is not necessary to use the classification engine to classify it. Fig. 2 shows a flow chart of a method for classifying short messages in a mobile terminal according to an embodiment of the present invention. As shown in Fig. 2, the method includes:

Step S210, read the short message and address book in the mobile terminal.

In this step, the short message can be read by scanning the short message database in the mobile terminal.

Step S220, for each short message, judge whether the text corresponding to the sender field in the short message hits the address book, if yes, execute step S230, otherwise execute step S240.

Step S230, determining that the short message is a daily short message.

Step S240, judging the category of the short message based on the classification engine.

In this step, the categories that the classification engine can determine include: verification codes, information, merchants, operators, banking and finance, order express delivery, and other notifications. Among them, the classification engine can judge the content of the short message, the judgment of the extracted entity, the judgment of the special service number, etc.

In one embodiment of the present invention, before the method shown in FIG. 1 judges the category of the short message based on the classification engine, it further includes: obtaining the text corresponding to the sender field in the short message; If the text matches the phone number indicating the specified category, then it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed. Wherein, the phone number indicating the specified category is obtained from the server side. Regarding the update of the classification engine and the specified keyword, the method further includes: acquiring an update plug-in from the server side every preset statistical period, and the update The plug-in is configured with the updated data of the phone number indicating the specified category; the update plug-in is used to update the phone number indicating the specified category, so that the plug-in can be upgraded separately during the upgrade.

For example, the corresponding relationship between the pre-stored phone number "10086" and the operator category, for the scanned SMS, if the text corresponding to the sender field in the SMS is "10086", then it is determined that the SMS belongs to the operator category, and there is no need to classify Engines are classified.

In one embodiment of the present invention, the method shown in FIG. 1 further includes the function of recovering the deleted short message, so as to maintain the situation that the user accidentally deletes the short message. The method further includes: when the short message in the mobile terminal is deleted, scan the short message, record the original storage path of the short message, and store the information corresponding to the short message in the deleted short message database; wherein, the information corresponding to the short message Including one or more of the following: information indicating whether the text message has been read, sending/receiving time information of the text message, text corresponding to the sender field in the text message, text corresponding to the recipient field, and text corresponding to the text field Text; in response to the operation of restoring the short message in the deleted short message database by the user, write the information corresponding to the short message into the original storage path.

In this process, the above-mentioned step of scanning the deleted short message is a step of reading the short message from the system of the mobile terminal, and the execution of this step needs to be adapted to the system of the mobile terminal to obtain the permission to read the short message in the system , including: under normal circumstances, the system of the mobile terminal manages the reading authority of the short message and provides the first specified interface to the outside. The text message reading permission in the terminal scans the text messages in the mobile terminal; but in some cases, the user closes the first designated interface through settings, so that the first designated interface cannot be called successfully. At this time, in order to obtain the text message reading permission , pushing a prompt message to the user, in which the user is prompted to open the first designated interface.

Correspondingly, the above-mentioned step of writing the information corresponding to the deleted text message into the original storage path is a step of writing the text message into the system text message database of the mobile terminal, which needs to be adapted to the system to obtain the text message writing permission, including: in general, mobile The terminal system manages the permission to write text messages and provides a second specified interface to the outside world. The device corresponding to this solution will apply for permission to write text messages by default when installed, and obtain the permission to write text messages in the mobile terminal by calling the second specified interface. , write the information corresponding to the short message into the original storage path; but in some cases, the user closes the second designated interface through settings, so that the second designated interface cannot be called successfully. At this time, in order to obtain the short message writing permission, the user A prompt message is pushed, in which the user is prompted to enable the second designated interface.

In one embodiment of the present invention, step S120 of the method shown in Fig. 1 judges that this short message category comprises based on classification engine:

Step S121, acquiring the text corresponding to the text field in the short message.

Step S122, according to the text corresponding to the text field, obtain N-dimensional feature vectors corresponding to the N specified keywords.

Step S123, inputting the N-dimensional feature vector into the classification engine to calculate the category of the short message.

Wherein, the classification engine and the N specified keywords are obtained from the server side. Regarding the update of the classification engine and the specified keywords, the method further includes: obtaining an update plug-in from the server every preset statistical cycle, and the update plug-in is configured with: the classification engine and/or the specified keywords are updated The update plug-in is used to update the classification engine and/or the specified keyword, so that the update of this solution can be completed through a separate upgrade of the plug-in, and more accurate classification results can be obtained.

In a specific embodiment, the classification engine includes a plurality of classification functions, and each classification function corresponds to a category; then step S123 includes: respectively substituting the N-dimensional feature vector into each classification function in the classification engine Performing calculations to obtain multiple calculation results; comparing the multiple calculation results, selecting the classification function corresponding to the largest calculation result, and using the category corresponding to the classification function as the category of the short message.

In a specific embodiment, step S122, according to the text corresponding to the text field, obtains N-dimensional feature vectors corresponding to N specified keywords may be: calculating the weight corresponding to each specified keyword in the text, and dividing the The set of weights corresponding to the N specified keywords is used as the N-dimensional feature vector of the short message.

Specifically, calculating the weight corresponding to each specified keyword in the text includes:

Segmenting the text into single characters to obtain a string with a corresponding order; starting from one end of the string, selecting a field of the first preset length, and judging whether the selected field hits the N specified keywords; if not , shortening the first preset length to a second preset length, starting from the selected starting end of the first preset length, selecting a field of the second preset length, and judging whether the selected field hits the N specified keys words; and so on, until the N specified keywords are hit; if so, the hit keywords are recorded; from one end of the remaining word string, repeat the above-mentioned field of selecting the first preset length, and judge the selected field The step of whether to hit the N specified keywords; and so on, until the length of the remaining word string is zero; according to the number of hits of each keyword in the N specified keywords, obtain the N specified keywords respectively The corresponding weight of the word in the text.

For example, the text corresponding to the text field in a text message is: "Online banking has opened mobile banking service", and the dictionary is composed of 5 specified keywords as {online banking, mobile phone, verification code, unsubscribe, activation}, and the text is first processed. Segment the word to get a string composed of 13 characters {net, online, bank, line, open, pass, mobile, machine, bank, line, service, service}, starting from the beginning of the string, Select the field "online bank" with a length of 4 characters, and match it in the dictionary. If there is a matching keyword, mark the keyword "online bank"; then match the rest of the string {open, pass, , mobile, mobile phone, bank, bank, service, service}, select the 4-character long field "opened hand", and match it in the dictionary. If there is no matching keyword, then start from the string From the beginning of {Open, Tong, Le, Mobile, Mobile, Bank, Bank, Service, Service}, select the field "Opened" with a length of 3 characters, and match it in the dictionary. There is no matching keyword. Then start from the beginning of the string {Open, Tong, 了, Mobile, Mobile, Bank, Bank, Service, Service}, select the field "Open" with a length of 2 characters, and match it in the dictionary. There is a matching key Word, mark the keyword "open"; then start from the beginning of the matching remaining string {, mobile, mobile, bank, bank, service, service}, select a field with a length of 4 characters" "Mobile phone bank" to match in the dictionary, if there is no matching keyword, then start from the beginning of the string {a, mobile phone, bank, bank, service, service}, select a field with a length of 3 characters "Mobile phone", go to the dictionary to match, if there is no matching keyword, then start from the beginning of the string {了, mobile phone, mobile phone, bank, bank, service, service}, select a field with a length of 2 characters "Get a hand", go to the dictionary for matching, if there is no matching keyword, then start from the beginning of the string {', mobile, mobile, bank, bank, service, service}, select a character with a length of 1 word The field "了" is matched in the dictionary. If there is no matching keyword, it means that the word itself and the combination of this word and the previous and subsequent words do not match the dictionary, skip the word, and then start from the rest of the match Starting from the beginning of the string {mobile, mobile, bank, bank, service, service}, select the field "mobile bank" with a length of 4 characters, match it in the dictionary, ..., and so on until the remaining characters The length of the string is 0. The number of matches for each specified keyword in the dictionary can be known by marking. In this example, the number of matches for "online banking" is 1, the number of matches for "opening" is 1, the number of matches for "mobile phone" is 1, and the number of matches for "verification" is 1. code" and "unsubscribe" is 0, then calculate the corresponding weight of each keyword in the text of the message. Furthermore, the 5-dimensional feature vector corresponding to the text can be obtained as: {1, 1, 0, 0, 1}.

An example is used to illustrate the specific implementation process of this program. In this embodiment, the server side collects a large number of short message samples. Machine, SVM) to generate a classification engine. Since the binary classification engine is the most simplified special case of the classification engine, here we first introduce the principle of using the SVM method to generate a binary classification model, laying the foundation for the subsequent promotion to generate a multi-classification engine. For example, assuming that the current SMS categories only include: financial management category and unsubscribe category, multiple SMS samples are collected as training samples, and each training sample has features (feature vectors corresponding to the text) and labels (categories to which it belongs). In the example, the feature of the training sample is set as a two-dimensional feature vector, and the labels of the training sample include: financial management category and unsubscribe category. In order to vividly represent the establishment process of the binary classification engine, Fig. 3 shows a schematic diagram of a server utilizing a support vector machine method to generate a binary classification engine according to an embodiment of the present invention, and the distribution of training samples in a two-dimensional plane is shown in Fig. 3 As shown, the two-dimensional feature vector is a point in the two-dimensional plane, wherein the two-dimensional feature vector of the short message sample belonging to the financial management category is marked with a circle, and the two-dimensional feature vector of the short message sample belonging to the unsubscribe category is marked with a box, in the two Find a straight line in the dimensional plane to distinguish the two categories of "financial management category" and "subscription category". The straight line represents the binary classification model in this example, which is a classification function that can classify The categories of SMS samples are completely separated. Suppose the classification function is g(x)=wx+b, wherein, x represents the two-dimensional feature vector of the training sample (short message sample), and the selection principle of w and b is: to find the maximum value between the two boundary ends or extreme dividing lines. Interval; If g(x)=0 is taken as the classification threshold, then for the feature vector of the SMS sample belonging to the financial management category, wx+b>0, for the feature vector of the SMS sample belonging to the unsubscribe category, wx+b<0.

This scheme acquires the binary classification engine from the server side, and classifies the short messages in the mobile terminal based on the binary classification engine. For each short message, the two-dimensional feature vector corresponding to the text corresponding to the text field in the short message is input into the classification Calculate in the function, if g(x)>0, it is determined that the SMS belongs to the financial management category, and if g(x)<0, it is determined that the SMS belongs to the unsubscribe category. It should be noted that the number of specified keywords extracted from the text of all SMS samples determines the description dimension of the features of the SMS samples, and further determines the description dimension of the features of the SMS to be classified. The solution provided in this example does not It is limited to the situation where the features of SMS are described from two dimensions. When the text information of SMS needs to be described from N dimensions, this scheme is still applicable in N-dimensional space. Each SMS corresponds to an N-dimensional feature vector, only However, the classification function no longer represents a straight line, but a plane, or even a hyperplane, to divide two regions of space to correspond to two different categories.

It can be seen that the process of using the SVM method on the server side to generate a binary classification engine is essentially a process of finding a classification function for distinguishing two different categories. On this basis, further, when there are more categories, use the SVM The essence of the approach to generating a classification engine is to find multiple classification functions that distinguish each class from the others.

Fig. 4 shows a schematic diagram of an apparatus for clearing short messages according to an embodiment of the present invention. As shown in Figure 4, the device 400 for cleaning short messages includes:

The scanning unit 410 is adapted to scan short messages in the mobile terminal.

The classification unit 420 is adapted to, for each scanned short message, determine the type of the short message based on the classification engine.

The display unit 430 is adapted to classify and display the short messages in the mobile terminal according to categories.

The cleaning unit 440 is adapted to delete short messages of one or more categories selected in response to the user's operation of selecting one or more categories.

It can be seen that the device shown in Figure 4 scans the short messages in the mobile terminal through the mutual cooperation of each unit, judges the type of short messages based on the classification engine, classifies and displays the short messages in the mobile terminal, and classifies multiple short messages belonging to the same category Displaying a category of information greatly simplifies the display of short messages, sorts out the category status of short messages contained in mobile terminals for users, and enables users to delete short messages in batches directly according to the category to which short messages belong without deleting short messages one by one, improving Improved SMS cleaning efficiency.

In an embodiment of the present invention, the cleaning unit 440 further deletes the selected one or more short messages in a category in response to the user's operation of selecting one or more short messages in a category.

In one embodiment of the present invention, the display unit 430 is further adapted to obtain, for each scanned short message, information indicating whether the short message has been read; classify and display the short messages in the mobile terminal according to categories , and for each text message that is classified and displayed, display the identifier corresponding to the information indicating whether the text message has been read.

In one embodiment of the present invention, the classification unit 420 is further adapted to obtain the text corresponding to the sender field in the short message and determine the sender field before the category of the short message is judged based on the classification engine. Whether the corresponding text hits the address book in the mobile terminal, if so, the step of judging the category of the short message based on the classification engine is no longer performed.

In one embodiment of the present invention, the classification unit 420 is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine; if the sender field If the corresponding text matches the phone number indicating the specified category, then it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.

In one embodiment of the present invention, the scanning unit 410 is further adapted to scan the short message when the short message in the mobile terminal is deleted, record the original storage path of the short message, and store the information corresponding to the short message in In the database of deleted short messages; wherein, the information corresponding to the short message includes one or more of the following: information indicating whether the short message has been read, the sending/receiving time information of the short message, the text corresponding to the sender field in the short message , the text corresponding to the recipient field, the text corresponding to the text field; and being suitable for writing the information corresponding to the short message into the original storage path in response to the operation of restoring the short message in the deleted short message database by the user.

In one embodiment of the present invention, the scanning unit 410 is adapted to obtain the text message reading authority in the mobile terminal by calling the first specified interface, and scan the text messages in the mobile terminal; The interface obtains the short message writing permission in the mobile terminal, and writes the information corresponding to the short message into the original storage path; wherein, if the first specified interface/second specified interface call fails, push a prompt to the user to open the first specified interface/second specified interface Two specifies the interface information.

In one embodiment of the present invention, the cleaning unit 440 is adapted to obtain the short message deletion authority in the mobile terminal by calling the third designated interface, and delete one or more categories of short messages selected; wherein, if the third If the specified interface fails to be called, push the information to the user prompting to open the third specified interface; and/or, push the information that prompts the user to change the default SMS application settings, obtain the relevant permissions of the default SMS application, and one or more to be deleted Delete SMS messages of a category, and then push information to the user prompting to restore the default SMS application settings.

In one embodiment of the present invention, the classification unit 420 is adapted to obtain the text corresponding to the text field in the short message; according to the text corresponding to the text field, obtain N-dimensional feature vectors corresponding to N specified keywords; The N-dimensional feature vector is input into the classification engine to calculate the category of the short message.

Wherein, the classification engine includes a plurality of classification functions, and each classification function corresponds to a category; the classification unit 420 is adapted to substitute the N-dimensional feature vector into each classification function in the classification engine for calculation , to obtain multiple calculation results; comparing the multiple calculation results, selecting the classification function corresponding to the largest calculation result, and using the category corresponding to the classification function as the category of the short message.

The classification unit 420 is adapted to calculate the weight corresponding to each specified keyword in the text corresponding to the text field in the short message, and use the set of weights corresponding to the N specified keywords as the N-dimensional feature vector of the short message.

Specifically, the classifying unit 420 is adapted to segment the text corresponding to the text field in the short message to obtain a string with a corresponding sequence; start from one end of the string and select a field of the first preset length , judging whether the selected field hits the N specified keywords; if not, shortening the first preset length to a second preset length, and selecting the second preset length from the beginning of the selected first preset length Set the length of the field to judge whether the selected field hits the N specified keywords; and so on until the N specified keywords are hit; if so, record the keywords that hit; from one end of the remaining word string Start by repeating the above-mentioned steps of selecting the first preset length of the field, and judging whether the selected field hits the N specified keywords; and so on until the remaining string length is zero; according to the N specified keywords The number of hits of each keyword in the text is used to obtain the corresponding weights of the N specified keywords in the text.

Fig. 5 shows a schematic diagram of an apparatus for clearing short messages according to another embodiment of the present invention. As shown in FIG. 5 , the device 500 for cleaning short messages includes: a scanning unit 510 , a classification unit 520 , a display unit 530 , a cleaning unit 540 and an interaction unit 550 .

Wherein, the scanning unit 510 , the classifying unit 520 , the display unit 530 , and the cleaning unit 540 are respectively the same as the scanning unit 410 , the classifying unit 420 , the display unit 430 , and the cleaning unit 440 shown in FIG. 4 .

The interaction unit 550 is adapted to acquire the classification engine, the phone number indicating the specified category, and/or the N specified keywords from the server side.

In an embodiment of the present invention, the interaction unit 550 is further adapted to obtain an update plug-in from the server every preset statistical period, and the update plug-in is configured with: the classification engine, the The updated data of the phone number and/or the specified keyword; using the update plug-in to update the classification engine, the phone number indicating the specified category, and/or the specified keyword.

It should be noted that the embodiments of the devices shown in FIGS. 4-5 are correspondingly the same as the embodiments shown in FIGS. 1-3 , which have been described in detail above and will not be repeated here.

In summary, in the technical solution provided by the present invention, the server side uses a plurality of short message samples as training samples, and according to the characteristics of the training samples (the feature vector corresponding to the text information of the short message sample) and the label (the category to which the short message sample belongs) Generate a classification engine, that is, find the mapping relationship between features (features described from N dimensions) and labels (category of short messages); this solution obtains the generated classification engine from the server side and corresponds to N dimensions, so that when the customer When there are short messages with features but no labels on the terminal, the label of the short message can be found through the mapping relationship between the feature and the label, that is, the category to which the short message belongs. By classifying and displaying the short messages in the mobile terminal, the The display method of short messages is simplified, and the category status of short messages contained in mobile terminals is sorted out for users, so that users can directly delete short messages in batches according to the categories of short messages without deleting short messages one by one, which improves the efficiency of short message cleaning.

It should be noted:

The algorithms and displays presented herein are not inherently related to any particular computer, virtual appliance, or other device. Various general purpose devices can also be used with the teachings based on this. The structure required to construct such an apparatus will be apparent from the foregoing description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all functions of some or all components in the device for clearing short messages according to the embodiment of the present invention. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

The invention discloses A1. A method for clearing short messages, wherein the method includes:

Scan the text messages in the mobile terminal;

For each text message scanned, judge the category of the text message based on the classification engine;

Classify and display the short messages in the mobile terminal according to categories;

In response to the user's operation of selecting one or more categories, the short messages of the selected one or more categories are deleted.

A2. The method as described in A1, wherein the method further comprises:

In response to the user's operation of selecting one or more short messages in a category, the selected one or more short messages in the category are deleted.

A3. The method as described in A1, wherein the method further includes: for each scanned text message, obtaining information in the text message indicating whether the text message has been read;

Then, the classifying and displaying the short messages in the mobile terminal according to categories further includes: for each short message that is classified and displayed, displaying an identifier corresponding to information indicating whether the short message has been read.

A4. The method as described in A1, wherein, before the category of the short message is judged based on the classification engine, the method further includes:

Obtain the text corresponding to the sender field in the short message, and judge whether the text corresponding to the sender field hits the address book in the mobile terminal, if so, no longer execute the step of judging the category of the short message based on the classification engine.

A5. The method as described in A1, wherein, before the category of the short message is judged based on the classification engine, the method further includes:

Obtain the text corresponding to the sender field in the text message;

If the text corresponding to the sender field matches the phone number indicating the specified category, it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.

A6. The method as described in A1, wherein the method further comprises:

When the short message in the mobile terminal is deleted, the short message is scanned, the original storage path of the short message is recorded, and the information corresponding to the short message is stored in the deleted short message database; wherein, the information corresponding to the short message includes the following one or Various: information indicating whether the short message has been read, sending/receiving time information of the short message, text corresponding to the sender field, text corresponding to the recipient field, and text corresponding to the text field in the short message;

In response to the user's operation of selecting a short message in the deleted short message database for recovery, the information corresponding to the short message is written into the original storage path.

A7. The method as described in A1 or A6, wherein,

The scanning the short message in the mobile terminal includes: obtaining the short message reading authority in the mobile terminal by calling the first designated interface, and scanning the short message in the mobile terminal;

The writing the information corresponding to the short message into the original storage path includes: obtaining the short message write permission in the mobile terminal by calling the second specified interface, and writing the information corresponding to the short message into the original storage path;

Wherein, if the calling of the first designated interface/the second designated interface fails, push information prompting the user to enable the first designated interface/the second designated interface.

A8. The method as described in A1, wherein the deletion of one or more categories of short messages to be selected includes:

By calling the third specified interface to obtain the permission to delete the short message in the mobile terminal, the selected one or more types of short messages will be deleted; wherein, if the third specified interface fails to be called, the user will be pushed to prompt to open the information of the third specified interface;

and / or,

Push information to the user prompting to change the default SMS application settings, obtain the relevant permissions of the default SMS application, and delete one or more categories of SMS messages that have been deleted; then push information to the user prompting to restore the default SMS application settings.

A9, the method as described in any one in A1-A5, wherein, described based on classification engine judges this short message category to comprise:

Obtain the text corresponding to the text field in the text message;

Acquiring N-dimensional feature vectors corresponding to N specified keywords according to the text corresponding to the text field;

The N-dimensional feature vector is input into the classification engine to calculate the category of the short message.

A10. The method as described in A9, wherein the classification engine includes a plurality of classification functions, each classification function corresponding to a category;

Then said inputting the N-dimensional feature vector into the classification engine, and calculating the category of the short message includes: respectively substituting the N-dimensional feature vector into each classification function in the classification engine for calculation, and obtaining multiple Calculation results; comparing the multiple calculation results, selecting the classification function corresponding to the largest calculation result, and using the category corresponding to the classification function as the category of the short message.

A11, the method as described in A9, wherein, according to the text corresponding to the text field, obtaining N-dimensional feature vectors corresponding to N specified keywords includes:

Calculate the weight corresponding to each specified keyword in the text, and use the set of weights corresponding to the N specified keywords as the N-dimensional feature vector of the short message.

A12, the method as described in A11, wherein, the weight corresponding to each specified keyword in the text of the calculation includes:

Segment the text into single characters to obtain character strings with corresponding order;

Starting from one end of the word string, selecting a field of a first preset length, and judging whether the selected field matches the N specified keywords;

If not, shorten the first preset length to the second preset length, select a field of the second preset length from the beginning of the selected first preset length, and determine whether the selected field hits the N Specify keywords; and so on, until the N specified keywords are hit;

If so, record the hit keyword; start from one end of the remaining word string, repeat the above-mentioned step of selecting the first preset length field, and judge whether the selected field hits the steps of the N specified keywords;

And so on, until the length of the remaining string is zero;

According to the number of hits of each keyword in the N specified keywords, the corresponding weights of the N specified keywords in the text are respectively obtained.

A13. The method as described in A9, wherein the method further comprises:

The classification engine, the phone number indicating the designated category, and/or the N designated keywords are acquired from a server side.

A14. The method as described in A13, wherein the method further comprises:

Every preset statistical period, obtain an update plug-in from the server side, and the update plug-in is configured with: the classification engine, the phone number indicating the specified category, and/or the updated data of the specified keyword;

Utilizing the update plug-in to update the classification engine, the phone number indicating the specified category, and/or the specified keyword.

The present invention also discloses B15, a device for clearing short messages, wherein the device includes:

The scanning unit is suitable for scanning short messages in the mobile terminal;

The classification unit is adapted to judge the category of the short message based on the classification engine for each scanned short message;

The display unit is suitable for classifying and displaying the short messages in the mobile terminal according to categories;

The cleaning unit is adapted to delete short messages of one or more categories selected in response to the user's operation of selecting one or more categories.

B16. The device of B15, wherein,

The cleaning unit is further adapted to delete one or more selected short messages in a category in response to the user's operation of selecting one or more short messages in the category.

B17. The device of B15, wherein,

The display unit is further adapted to obtain information indicating whether the short message has been read in the short message for each short message scanned; when the short messages in the mobile terminal are classified and displayed according to categories, they are also classified and displayed For each text message, display the identifier corresponding to the information indicating whether the text message has been read.

B18. The method as described in B15, wherein,

The classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine, and judge whether the text corresponding to the sender field hits the communication in the mobile terminal record, if so, no longer execute the step of judging the category of the short message based on the classification engine.

B19. The device of B15, wherein,

The classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine; if the text corresponding to the sender field is the same as the phone number indicating the specified category match, then it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.

B20. The device of B15, wherein,

The scanning unit is further adapted to scan the short message when the short message in the mobile terminal is deleted, record the original storage path of the short message, and store the information corresponding to the short message in the deleted short message database; wherein, the short message The corresponding information includes one or more of the following: information indicating whether the short message has been read, sending/receiving time information of the short message, text corresponding to the sender field in the short message, text corresponding to the recipient field, and text The text corresponding to the field; and being suitable for writing the information corresponding to the short message into the original storage path in response to the operation of restoring the short message in the deleted short message database by the user.

B21. The device as described in B15 or B20, wherein,

The scanning unit is adapted to obtain the short message reading authority in the mobile terminal by calling the first designated interface, and scan the short message in the mobile terminal; and is suitable for obtaining the short message writing right in the mobile terminal by calling the second designated interface , writing the information corresponding to the short message into the original storage path; wherein, if the call of the first designated interface/the second designated interface fails, push the information prompting the user to open the first designated interface/the second designated interface.

B22. The device of B15, wherein,

The cleaning unit is adapted to obtain the short message deletion authority in the mobile terminal by calling the third specified interface, and delete the selected one or more categories of short messages; wherein, if the third specified interface fails to call, push the prompt to the user to open The information of the third specified interface; and/or, it is suitable for pushing information prompting the user to change the settings of the default SMS application, obtaining relevant permissions of the default SMS application, deleting one or more types of SMS that have been deleted, and then pushing the information to the user A message prompting to restore the default SMS application settings.

B23. The device as described in B15 or B19, wherein,

The classification unit is adapted to obtain the text corresponding to the text field in the short message; according to the text corresponding to the text field, obtain an N-dimensional feature vector corresponding to N specified keywords; input the N-dimensional feature vector into the In the classification engine, the classification of the short message is obtained through calculation.

B24. The method as described in B23, wherein the classification engine includes a plurality of classification functions, each classification function corresponding to a category;

The classification unit is suitable for substituting the N-dimensional feature vector into each classification function in the classification engine for calculation to obtain multiple calculation results; comparing the multiple calculation results, selecting the corresponding maximum calculation result A classification function, the category corresponding to the classification function is used as the category of the short message.

B25. The device of B23, wherein,

The classification unit is adapted to calculate the weight corresponding to each specified keyword in the text corresponding to the text field in the short message, and use the set of weights corresponding to the N specified keywords as the N-dimensional feature vector of the short message.

B26. The device of B25, wherein,

The classification unit is adapted to perform single-word segmentation on the text corresponding to the text field in the short message to obtain a word string with a corresponding order; starting from one end of the word string, select a field of the first preset length, and judge the selected Whether the field matches the N specified keywords; if not, the first preset length is shortened to the second preset length, and a field of the second preset length is selected from the beginning of the selected first preset length , to determine whether the selected field hits the N specified keywords; and so on until the N specified keywords are hit; if so, record the hit keywords; start from one end of the remaining string, repeat the above Selecting a field of the first preset length, judging whether the selected field hits the N specified keywords; and so on until the remaining string length is zero; according to each key in the N specified keywords The number of hits of the word is used to obtain the corresponding weights of the N specified keywords in the text.

B27. The device as described in B23, wherein the device further comprises:

The interaction unit is adapted to acquire the classification engine, the phone number indicating the specified category, and/or the N specified keywords from the server side.

B28. The device of B27, wherein,

The interaction unit is further adapted to obtain an update plug-in from the server side every preset statistical period, and the update plug-in is configured with: the classification engine, the phone number indicating the specified category, and/or the specified key Word updated data; using the update plug-in to update the classification engine, the phone number indicating the specified category, and/or the specified keyword.

Claims (10)

1. A method for clearing short messages, wherein the method comprises: Scan the text messages in the mobile terminal; For each text message scanned, judge the category of the text message based on the classification engine; Classify and display the short messages in the mobile terminal according to categories; In response to the user's operation of selecting one or more categories, the short messages of the selected one or more categories are deleted. 2. The method of claim 1, wherein the method further comprises: In response to the user's operation of selecting one or more short messages in a category, the selected one or more short messages in the category are deleted. 3. The method according to claim 1, wherein the method further comprises: for each text message scanned, obtaining information indicating whether the text message has been read in the text message; Then, the classifying and displaying the short messages in the mobile terminal according to categories further includes: for each short message that is classified and displayed, displaying an identifier corresponding to information indicating whether the short message has been read. 4. The method according to claim 1, wherein, before the category of the short message is judged based on the classification engine, the method further comprises: Obtain the text corresponding to the sender field in the short message, and judge whether the text corresponding to the sender field hits the address book in the mobile terminal, if so, no longer execute the step of judging the category of the short message based on the classification engine. 5. The method according to claim 1, wherein, before the category of the short message is judged based on the classification engine, the method further comprises: Obtain the text corresponding to the sender field in the text message; If the text corresponding to the sender field matches the phone number indicating the specified category, it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed. 6. A device for clearing short messages, wherein the device comprises: The scanning unit is suitable for scanning short messages in the mobile terminal; The classification unit is adapted to judge the category of the short message based on the classification engine for each scanned short message; The display unit is suitable for classifying and displaying the short messages in the mobile terminal according to categories; The cleaning unit is adapted to delete short messages of one or more categories selected in response to the user's operation of selecting one or more categories. 7. The apparatus of claim 6, wherein, The cleaning unit is further adapted to delete one or more selected short messages in a category in response to the user's operation of selecting one or more short messages in the category. 8. The apparatus of claim 6, wherein, The display unit is further adapted to obtain information indicating whether the short message has been read in the short message for each short message scanned; when the short messages in the mobile terminal are classified and displayed according to categories, they are also classified and displayed For each text message, display the identifier corresponding to the information indicating whether the text message has been read. 9. The method of claim 6, wherein, The classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine, and judge whether the text corresponding to the sender field hits the communication in the mobile terminal record, if so, no longer execute the step of judging the category of the short message based on the classification engine. 10. The apparatus of claim 6, wherein, The classification unit is further adapted to obtain the text corresponding to the sender field in the short message before the category of the short message is judged based on the classification engine; if the text corresponding to the sender field is the same as the phone number indicating the specified category match, then it is determined that the category of the short message is the specified category, and the step of judging the category of the short message based on the classification engine is no longer performed.