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Event extraction method, device and system and storage medium

An event extraction and event technology, applied in the field of information extraction, can solve the problems of one-sided mode, inaccurate, incomplete and accurate event content, etc., and achieve the effect of improving integrity and accuracy and improving efficiency.

Active Publication Date: 2018-01-09
南京柯基数据科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] However, the method based on pattern matching requires a lot of manual establishment of the pattern, and the creator of the pattern needs a high skill level
With the development of Internet technology, WEB texts are constantly enriched. In the face of large-scale corpus, the number of artificially established models is large, and the method of pattern matching is time-consuming and laborious. Moreover, artificially established models are often relatively one-sided and not accurate enough, which may lead to The extracted event content is not complete and accurate

Method used

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  • Event extraction method, device and system and storage medium
  • Event extraction method, device and system and storage medium
  • Event extraction method, device and system and storage medium

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Embodiment Construction

[0026] The characteristics and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present invention, not to limit the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and ...

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Abstract

The invention discloses an event extraction method, device and system and a storage medium. The method includes: utilizing triggering words, which are obtained by carrying out pattern learning on a corpus, to position event sentences in documents of the corpus, and determining event categories of the event sentences according to relationship classifications of the triggering words; using patterns,which are obtained by pattern learning, to carry out pattern matching on the event sentences to obtain event sentence sets matching the patterns; and extracting event contents in the event sentence sets according to preset event learning templates corresponding to the event categories. According to the event extraction method provided by the embodiment of the invention, efficiency and integrity of event content extraction can be improved.

Description

technical field [0001] The present invention relates to the field of information extraction, in particular to an event extraction method, device, system and storage medium. Background technique [0002] As an important part of information extraction, event extraction has broad application prospects and great practical significance, and has a wide range of applications in the fields of automatic summarization, automatic question answering, intelligence research and information retrieval. The main purpose of event extraction is to present unstructured text containing events in a structured form. [0003] Event extraction can generally be divided into Meta Event extraction and Topic Event extraction. Among them, the meta-event represents the occurrence of an action or the change of state, including a series of components involved in the action such as time, place, subject and object. A meta event is the basic unit of a theme event. [0004] Event extraction is a key technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F17/27
Inventor 吴刚
Owner 南京柯基数据科技有限公司
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