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Text event extraction method and device

An event extraction and text technology, applied in the field of text processing, can solve problems such as lack of generality, and achieve the effect of reasonable, effective and strong generality of event extraction.

Inactive Publication Date: 2020-01-24
BEIJING MININGLAMP SOFTWARE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method and device for extracting text events, so as to at least solve the problem of lack of versatility due to the need to set a specified mode when extracting text events in the related art

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  • Text event extraction method and device
  • Text event extraction method and device

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Embodiment Construction

[0025] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0026] In this embodiment, a text event extraction method is provided, figure 1 is a flow chart of a method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0027] Step S102, cleaning and word segmentation of the text to be processed;

[0028] Step S104, performing dependency syntactic analysis on the text after word segmentation, so as to obtain the sentence components of each sentence in the text;

[0029] Step S106, performing component supplementation and entity normalization on the sentence according to the knowledge base and the context of the text, so as to extract events in the text;

[0030] Step S108, constructin...

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Abstract

The invention provides a text event extraction method and device. The method comprises the steps of performing cleaning and word segmentation on a to-be-processed text; performing dependency syntax analysis on the text after word segmentation to obtain sentence components of each sentence in the text; performing component supplement and entity standardization on sentences according to a knowledgebase and the context of the text so as to extract events in the text; and constructing a map of the event in an entity-relationship-entity form according to the syntactic structure. According to the method, text information is analyzed from a syntactic structure, event extraction does not need to set a specified mode, extremely high universality is achieved, text complementation and entity standardization can effectively utilize the text information, and event extraction is more reasonable and effective.

Description

technical field [0001] The present invention relates to the field of text processing, in particular to a text event extraction method and device. Background technique [0002] Event extraction refers to presenting unstructured text containing event information in a structured form. Events are extracted from massive texts, so that text data can be analyzed using the method of analyzing structured data. For example, extracting fire events from fire news texts will make it easier for us to study fires and better prevent fires before they happen. There are generally two existing text event extraction methods: event extraction methods based on pattern matching and event extraction methods based on machine learning. [0003] There are two existing mainstream technical methods for event extraction from text: the event extraction method based on pattern matching, and the event extraction method based on traditional machine learning. [0004] The event extraction method based on p...

Claims

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Application Information

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IPC IPC(8): G06F16/36G06F16/33G06F40/211G06F40/289
CPCG06F16/33G06F16/36
Inventor 罗华刚
Owner BEIJING MININGLAMP SOFTWARE SYST CO LTD