Computer Science ›› 2015, Vol. 42 ›› Issue (2): 14-17.doi: 10.11896/j.issn.1002-137X.2015.02.003

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Survey about Research on Information Extraction

GUO Xi-yue and HE Ting-ting   

  • Online:2018-11-14 Published:2018-11-14

Abstract: The task of information extraction (IE) is obtaining the objective information precisely and quickly from a large scale of data.Nowadays IE has already been an important branch of NLP,and its value is also becoming increa-singly apparent.As a result,the industry and academia are putting more and more emphasis on it.This paper first reviewed the development process of information extraction,then summarized the new research progress about IE from 4 aspect:named-entity recognition,anaphora resolution,relation extraction and event extraction.What’s more,the paper analyzed some primary problems that the IE is facing with,and finally predicted the researching trend of IE in the future.

Key words: Information extraction,Named-entity recognition,Anaphora resolution,Relation extraction,Event extraction

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