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Method and system for united inference of Chinese events

A reasoning method and event technology, applied in reasoning methods, electrical digital data processing, special data processing applications, etc., can solve problems such as loss of valuable information, cascading errors, failure to consider internal connections, etc., to achieve recognition performance improvement, Improvement of performance, effect of performance improvement

Active Publication Date: 2016-10-26
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] At present, there are two problems in most of the event extraction methods: 1) Most of the existing event extraction methods use machine learning methods, which regard event instances as isolated individuals and then classify them. The internal connection between event instances; 2) Most of the existing event extraction adopts the pipeline model, but the biggest problem with this method is that the results of the subsequent tasks cannot be fed back to the previous tasks, which will not only cause cascading errors, but also lose a lot of valuable information. information

Method used

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  • Method and system for united inference of Chinese events
  • Method and system for united inference of Chinese events
  • Method and system for united inference of Chinese events

Examples

Experimental program
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Effect test

example 1

[0082] Example 1 is parsed as follows:

example 2

[0083] Example 2: ((IP(ADVP(AD))(PP(P According to)(NP(NN Report)))(PU,)(NP(NR Florida)(NN Assembly))(VP(VP(ADVP( AD will))(PP(P on)(NP(NT 8th)))(VP(VP(VV))(VP(VV)(NP(QP(CD))(NP(NP(QP( CD both))(NP(NN institute)))(NP(QP(CD union)(CLP(M seat)))(ADJP(JJ special))(NP(NN meeting)))))))(PU ,)(VP(ADVP(AD))(VP(VV)(NP(DNP(NP(DP(DT))(NP(NN))(DEG))(QP(CD 25)( CLP(M name)))(NP(NN elector)))))(PU,)(VP(PP(P)(IP(NP(NR Republican))(VP(PP(P)(LCP( NP(NP(NR Florida)(NN Assembly))(ADJP(JJ total))(NP(NN number)))(LC)))(VP(VV accounted for)(NP(NN advantage))))) )(PU,)(VP(VV appointment)(NP(NN result))(IP(VP(ADVP(AD very))(VP(VV likely)(VP(PP(P pair)(NP(NN bush)) )(VP(VV favorable)))))))))(PU.)))

[0084] Among them, syntactic analysis refers to analyzing the grammatical function of words in a sentence. "NT", "NR", "P", "NN", "VV", "PU", "AD", "AS", "DEG", "PN", and "LC" are labels for syntactic analysis, Respectively represent time words, proper nouns, prepositions, common nouns, common verb...

example 3

[0087] Example 3: advmod (hold -10, another -1) prep (hold -10, according to -2) pobj (according to -2, reported -3) nn (Parliament -6, Florida -5) nsubj (hold -10, council-6) advmod (hold-10, will-7) prep (hold-10, hold-8) pobj (hold-8, 8th-9) conj (reference-11, hold-10) dep (hold-10 , reference-11) nummod (meeting-18, public-12) nummod (meeting-14, two-13) nn (meeting-18, hospital-14) nummod (seat-16, joint-15) clf (meeting-18 . ,the-22)assmod(elector-27,state-23)assm(state-23,of-24)nummod(name-26,25-25)clf(elector-27,name-26)dobj(appointment -21, elector -27) prep (appointment -40, due -29) nsubj (account -37, republican -30) prep (account -37, at -31) nn (congress -33, florida -32) nn (Number -35, Parliament -33) amod (Number -35, Total -34) lobj (Middle -36, Number -35) plmod (In -31, Middle -36) pccomp (Due to -29, Account -37) dobj (account -37, advantage -38) dep (hold -10, appointment -40) dobj (appointment -40, result -41) advmod (favorable -46, very -42) mmod (f...

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Abstract

The invention provides a method and system for united inference of Chinese events on a chapter level. The method and the system can apply valuable information in argument extraction to assist in trigger word extraction in turn, so that cascading mistakes in a traditional pipeline mode can be reduced. With regard to an implementation method, the method and the system provided by the invention combine machine learning with the inference; and various types of language knowledge is used to recognize a time sequence relation of the Chinese events. The method and the system provided by the invention have the advantage that recognition performance is enhanced to a certain extent in comparison with existing methods and systems.

Description

technical field [0001] The invention belongs to the field of natural language processing, in particular to a system and method for event extraction. Background technique [0002] As a main form of information representation, event (Event) is an objective fact (also called "natural event") in which specific people, things, and things interact at a specific time and a specific place, such as human injury, death, and Food additive incidents, etc. The goal of event extraction is to extract event instances in the text and identify their types, and then extract arguments for each extracted event instance and assign corresponding roles, how people, where, and what things did what, which is from the text. Basic research work to obtain valuable information. [0003] As an important research topic of information extraction, event extraction has far-reaching theoretical significance and extensive application value. In terms of theory, event extraction involves technologies and metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27G06N5/04
CPCG06F40/289G06N5/04
Inventor 朱少华李培峰朱巧明周国栋朱晓旭
Owner SUZHOU UNIV
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