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Method and system of extracting information of unexpected events based on literary style and word lists

A technology for emergencies and information extraction, which is applied in the field of information processing and can solve problems such as the inability to meet the requirements of extraction tasks.

Pending Publication Date: 2018-03-27
WUHAN UNIV OF TECH
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Problems solved by technology

Yang Erhong proposed a model for automatically obtaining the structure of event information. This model is based on the analysis of text words, through the method of sentence clustering to extract emergency information, and further uses the method of word string matching information to extract Specific information on certain aspects of emergencies, but only limited to HowNet knowledge resources are not suitable for free text on the Internet, and at the same time, word strings are used to replace the meaning, which is far from meeting the task requirements of extraction

Method used

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  • Method and system of extracting information of unexpected events based on literary style and word lists
  • Method and system of extracting information of unexpected events based on literary style and word lists
  • Method and system of extracting information of unexpected events based on literary style and word lists

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Abstract

The invention discloses a method and system of extracting information of unexpected events based on literary forms and word lists. First, analyzing the characteristics of Web texts and news styles; extending a list of words built by experts with Google word 2 Vec; developing different extraction methods for different attributes of unexpected events: using the word lists for event classification; using stylistic features to extract time and event abstracts; using literary style and word lists to extract locations, casualties and economic loss attributes. Experiments show that the average accuracy rate is 87.89% and 91.29%, respectively, and the average recall rate is 81.76% and 87.91% respectively when using the method based on literary style and word lists to extract the attributes of unexpected events in crawled Web news corpora and open corpora, which can meet emergency management needs.

Description

technical field [0001] The invention belongs to the technical field of information processing, and in particular relates to a method and system for extracting emergency information based on style and vocabulary. Background technique [0002] In recent years, under the influence of climate warming, economic globalization, and international political changes, various emergencies have occurred frequently around the world, which has brought great harm to social harmony and stability and people's happy life. Emergency management has It has aroused great attention and strong support from local governments at all levels. At the same time, in today's highly popularized network, the channels for obtaining emergency information have also expanded from a single government document to network channels such as various news websites. The present invention uses Web news is the research object. On the basis of in-depth analysis of the characteristics of Web news, it tries to use information...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/21G06F16/35G06F16/951
Inventor 邱奇志周三三刘长发陈晖於利艳於剑
Owner WUHAN UNIV OF TECH
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