Automatic construction method for legal instrument and action cause classifier

An automatic construction and classifier technology, applied in the field of knowledge engineering, can solve problems such as low efficiency and low accuracy of solution extraction

Active Publication Date: 2017-09-01
UNIV OF SCI & TECH BEIJING
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for automatically constructing a case classifier for legal documents, so as to solve the problems of low efficiency and low accuracy of case extraction existing in the prior art

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  • Automatic construction method for legal instrument and action cause classifier

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Embodiment Construction

[0044] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0045] Aiming at the existing problems of low efficiency and low accuracy in extraction of cause of action, the present invention provides an automatic construction method of cause of law classifier for legal documents.

[0046] like figure 1 As shown, the legal documents provided by the embodiment of the present invention are automatically constructed by the classifier, including:

[0047] S101, obtaining legal documents of multiple types of causes of action, constructing a basic corpus of causes of action, and determining the test corpus of each type of cause of action according to the constructed basic corpus of causes of action;

[0048] S102, removing stop words and word segmentation for each type of test corpus;

[0049] S103, according to word s...

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Abstract

The invention provides an automatic construction method for a legal instrument and action cause classifier and relates to the field of knowledge engineering technology. The classifier is high in classification efficiency and high in accuracy. The method comprises the steps that legal instruments of multiple types of action causes are acquired, and a test corpus of each type of action causes is determined; stop words and segmented words are removed from each type of test corpus; a basic keyword of each type of action causes is determined according to a word segmentation result; word vector training is performed on each type of test corpus according to the word segmentation result, the keywords are expanded, and an expanded keyword list of each type of action causes is determined according to the expanded keywords and the determined basic keywords; a to-be-classified legal instrument is input, stop words and segmented words are removed from the input to-be-classified legal instrument, and word vector training is performed on the input to-be-classified legal instrument; and a semantic similarity sum of the to-be-classified legal instrument and each type of expanded keyword list is calculated according to a word vector training result of the to-be-classified legal instrument, and the action cause corresponding to the maximum semantic similarity sum is taken to serve as the action cause corresponding to the to-be-classified legal instrument.

Description

technical field [0001] The invention relates to the technical field of knowledge engineering, in particular to an automatic construction method of a classifier for legal documents. Background technique [0002] In recent years, in order to implement the principle of open trial, the Supreme People's Court of our country has established the China Judgment Documents Network, stipulating that it is not appropriate to publish on the Internet except those involving state secrets, personal privacy, juvenile crimes, cases closed through mediation, and other cases. Except for the judgment documents, the rest will be published on the Internet. This policy brings a large amount of research resources to natural language processing technology for legal documents. [0003] In the context of the era of legal information disclosure, in the existing massive legal documents, let the computer acquire learning ability and more accurate domain knowledge, and effectively use these massive text r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F17/27
CPCG06F16/3335G06F16/3338G06F16/355G06F40/216G06F40/30
Inventor 金佩张德政贾麒谢永红齐宇馨栗辉
Owner UNIV OF SCI & TECH BEIJING
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