CN106484673A - A kind of Chinese event method for expressing towards cognitive analysis - Google Patents

Abstract

The invention discloses a kind of Chinese event method for expressing towards cognitive analysis, the present invention proposes a kind of structurized representations of events model, and proposes the assignment method of the determinant attributes such as the event type based on Chinese text analyzing and processing.The present invention supports the attribute extraction of field social eventss and the expression such as political, military, diplomatic, is that expression, tissue, storage management and the cognitive analysis application of magnanimity event data provides realistic feasibility.

Description

A Representation Method for Chinese Events Oriented to Cognitive Analysis

technical field

The invention relates to an event representation method, in particular to a cognitive analysis-oriented Chinese event representation method.

Background technique

An event is a knowledge unit that links elements such as participants, time, place, and behavior, and can reflect movements and changes in the real world. Massive Internet and other information sources contain a large number of various social events expressed in text form. Events are the main body of text descriptions such as news. Taking cognition as the goal, establishing an event model and realizing the extraction of event information, and clearly expressing the main semantic content of the information in a structured manner is the key to realizing the effective organization and machine understanding of massive text information. Foundation. Based on the cognition-oriented event representation model, extracting social event information in political, military, diplomatic and other fields from massive Chinese text information, forming a social event data reserve, and performing cognitive calculation of events on this basis, is a large An important approach to social cognitive computing in the data age.

To establish a Chinese event representation method for cognitive analysis, it is necessary to establish a structured representation model based on the key attributes of the event, and establish a classification system for the nature of the event, and give a basic method for building a classifier based on this system. At present, there are several event classification systems for English in the world, such as the political event classification system CAMEO, etc., but the event classification system for Chinese has not yet formed a standard.

Contents of the invention

Purpose of the invention: The purpose of the present invention is to provide a Chinese event representation method oriented to cognitive analysis that can solve the defects in the prior art.

Technical solution: the Chinese event representation method oriented to cognitive analysis of the present invention, the method comprises the following steps:

S1: Input the Chinese text to be processed, and perform two preprocessing of format adjustment and sentence segmentation;

S2: Use natural language processing tools to analyze the text syntactically, accurately identify the subject, object entity and predicate verb, and identify the time and place entities in the corresponding sentence;

S3: Extract event information, including the time and location of the event and its latitude and longitude code, the initiator and recipient of the event and their country, event action, event reporting time, number of repeated reports and original information sources;

S4: Determine the nature of the event, and classify the event into one of the 20 types of events based on the event action information extracted in step S3 and assisting in considering the social attributes of the event initiator and recipient;

S5: Based on the processing results of steps S3 and S4, the event is structured and coded, and added to the event database.

Further, the event classification system is aimed at social events in the political, military, and diplomatic fields, including public statements, appeals, expressions of cooperation intentions, discussions, diplomatic cooperation, substantive cooperation, assistance, concessions, investigations, demands, disapproval, and rejections. , Threats, Protests, Military Posturing, Reduced Relations, Coercion, Violation, Combat, and Unconventional Mass Violence.

Beneficial effects: compared with the prior art, the present invention has the following beneficial effects:

1) A structured event representation model is established, based on which, the extraction of event information can be realized, and the main semantic content carried by the information can be clearly expressed in a structured way;

2) The classification system of event nature is established, and the basic method of constructing a classifier based on this system is given, which can realize the judgment of event nature and provide a quantitative basis for cognitive computing.

Description of drawings

Fig. 1 is a flow chart of the method of the present invention.

detailed description

The invention discloses a Chinese event representation method oriented to cognitive analysis, as shown in Figure 1, the method includes the following steps:

S1: Input the Chinese text to be processed, and perform two preprocessing of format adjustment and sentence segmentation;

S2: Use natural language processing tools to analyze the text syntactically, accurately identify the subject, object entity and predicate verb, and identify the time and place entities in the corresponding sentence;

S3: Extract event information based on the event representation model, including the time and location of the event and its latitude and longitude code, the initiator and recipient of the event and their country, event action, event reporting time, number of repeated reports and original information source ;

S4: Determine the nature of the event, according to the event action information extracted in step S3, assist in considering the social attributes of the event initiator and recipient, and classify the event into one of the 20 types of events according to the classifier;

S5: Based on the processing results of steps S3 and S4, the event is structured and coded, and added to the event database.

The event representation model is shown in Table 1. The model consists of ID, PostTime, EventTime, StoryNum, Actor1Name, Actor1Country, Actor1Lat, Actor1Long, Actor2Name, Actor2Country, Actor2Lat, Actor2Long, Action, ActionCountry, ActionLat, ActionLong, Category, Content, URL and other fields, as shown in Table 1. It is used to record when, where, what person (or organization) did what type of thing to what person (or organization).

Table 1 Event representation model example

in,

ID: global uniform identifier of the event;

PostTime: The date the event was reported/published, in the format YYYYMMDD;

EventTime: the date when the event occurred, in the format of YYYYMMDD;

StoryNum: The number of times an event is repeatedly extracted from different data sources, such as the number of repeated reports of the same event by different news media. This attribute is used to measure the importance of public opinion of the event;

Actor1Name: The name of the initiator of the event, such as the full name of the country, province, city, person or organization, etc.;

Actor1Country: The country to which the event initiator belongs, using the three-digit ISO 3166 country code;

Actor1Lat: the geographical latitude of the administrative division to which the event initiator belongs;

Actor1Long: the geographic longitude of the administrative division to which the event initiator belongs;

Actor2Name The name of the event recipient, such as the full name of the country, province, city, person or organization, etc.;

Actor2Country: The country to which the event recipient belongs, using the three-digit ISO 3166 country code;

Actor2Lat: the geographical latitude of the administrative division to which the event initiator belongs;

Actor2Long: the geographic longitude of the administrative division to which the event initiator belongs;

Action: the behavior of the event;

ActionCountry: The country where the event occurred, using the three-digit ISO 3166 country code;

ActionLat: the geographical latitude of the administrative division where the event occurred;

ActionLong: the geographic latitude and longitude of the administrative division where the event occurred;

Category: event type, classified and judged according to step S2;

Content: Extract the original text content corresponding to the event;

URL: URL of the webpage corresponding to the original text extracted from this event; this field can be left blank for non-network sources.

The present invention can be used for processing texts such as Chinese news, and is applied to extract social event information in the fields of politics, military affairs, diplomacy, etc. from massive Chinese text information and perform structured representation to form a social event data reserve, and support events based on this Cognitive computing provides practical feasibility for the representation, organization, storage management and cognitive analysis of massive event data, and lays the foundation for the effective organization and machine understanding of massive text information.

The present invention provides a Chinese event representation method oriented to cognitive analysis. There are many methods and approaches to realize this technical solution. The above description is only a preferred implementation mode of the present invention. It should be pointed out that for those of ordinary skill in the art In other words, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components that are not specified in this embodiment can be realized by existing technologies.

Claims (2)

1. A Chinese event representation method facing cognitive analysis is characterized in that: the method comprises the following steps:

s1: constructing a structured event representation model, inputting a Chinese text to be processed, and carrying out two pre-processes of format adjustment and sentence segmentation;

s2: the method comprises the steps of adopting a natural language processing tool to carry out syntactic analysis on a text, accurately identifying subject, object entities and predicate verbs, and identifying time and place entities in corresponding sentences;

s3: extracting event information, including time, place and longitude and latitude codes of the event, initiator and receiver of the event, country of the initiator and receiver, event action, event report time, repeated report times and original information source;

s4: judging the event property, and classifying the event into one of 20 types of events according to the event action information extracted in the step S3 by taking the social attributes of the event initiator and the receiver into auxiliary consideration;

s5: based on the processing results of steps S3 and S4, the event is structurally represented and encoded, and added to the event database.

2. The cognitive analysis-oriented chinese event representation method of claim 1, wherein: the event property classification system aims at 20 types of social events in the fields of politics, military affairs and outturn, including public declaration, call, expression of intention to collaborate, negotiation, outturn collaboration, substantial collaboration, assistance provision, concession, investigation, requirement, disapproval, rejection, threat, resistance, military posture display, relationship reduction, forcing, offender, battle and unconventional large-scale violence.