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Judicial case searching method based on multi-feature fusion

A multi-feature fusion and search method technology, applied in the field of judicial case search based on multi-feature fusion, can solve the problems of low accuracy and low retrieval efficiency, and achieve the effect of improving accuracy and recall

Inactive Publication Date: 2018-11-13
安徽富驰信息技术有限公司
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a search method for similar judicial cases based on multi-feature fusion in order to overcome the defects of low retrieval efficiency and low accuracy in the prior art

Method used

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  • Judicial case searching method based on multi-feature fusion
  • Judicial case searching method based on multi-feature fusion
  • Judicial case searching method based on multi-feature fusion

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Embodiment 1

[0044] The invention discloses a method for searching similar judicial cases based on multi-feature fusion, and the specific steps are as follows:

[0045] (1) The user inputs a query request;

[0046] (2), preprocessing and word segmentation of user query requests, and removing stop words therein, to obtain a set of query keywords;

[0047] (3), traversing the query word collection in turn, for each query word in the query word collection, carry out query semantic expansion through the semantic dictionary, and obtain the query semantic keyword list after expansion;

[0048] (4) Use information points to filter documents, search for feature inverted indexes, and obtain different feature vectors of the keyword list, including keyword feature vectors, language model feature vectors, subject word set feature vectors, and block weighted keyword features The vector counts the tfidf information of the block entry, and then weights the block. The language model feature vector perfor...

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Abstract

The invention discloses a judicial case searching method based on multi-feature fusion. The specific steps are as follows: a user inputs a query request; the user query request is preprocessed and segmented, and stopped words are removed to obtain a set of query keywords; the query word set is traversed in turn, each query word in the query word set is subject to query semantic extension by a semantic dictionary to obtain an expanded query semantic keyword list; information points are used to filter documents, a feature inverted index is searched, different feature vectors of the keyword listare obtained, and then multi-feature fusion is carried out; the fusion similarity value between documents and query sentences is obtained, and the final similarity score is obtained; and the final search result is sorted and output. The invention has the advantage of high accuracy.

Description

technical field [0001] The invention relates to the field of searching for similar judicial cases, in particular to a method for searching similar judicial cases based on multi-feature fusion. Background technique [0002] Law is the product of the country, and refers to the basic laws and ordinary laws promulgated by the ruling class (ruling group, that is, political parties, including kings and monarchs) after certain legislative procedures in order to achieve the purpose of ruling and managing the country. The law is the embodiment of the will of all the people and the ruling tool of the country. [0003] With the publicization of social information, the society pays more and more attention to the trial results of some legal cases. During the trial process, it is possible to recommend similar judgment documents as a reference in time, which can effectively improve the effect of the trial. At present, the commonly used The keyword-based full-text retrieval system simply u...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 耿伟司华建贾真
Owner 安徽富驰信息技术有限公司
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