Knowledge graph-based case retrieval method, device and equipment, and storage medium

Abstract

The invention relates to the field of big data, discloses a case retrieval method, device and equipment based on a knowledge graph and a storage medium, and improves the availability of a case retrieval system. The method provided by the invention comprises the following steps: preparing a template; constructing a legal case knowledge graph according to the text information; carrying out random walk sampling on node set data constructed according to the legal case knowledge graph; acquiring multiple sequence data, training the model through a word transformation vector algorithm based on the plurality of pieces of sequence data, obtaining an updated target model, obtaining target text information, analyzing the target text information through the target model to construct a knowledge graphto be retrieved; and retrieving in the legal case knowledge graph according to the to-be-retrieved knowledge graph to obtain case information associated with the to-be-retrieved knowledge graph, andobtaining output case information according to the first similarity and the second similarity of the case information.

Description

technical field [0001] The present application relates to the field of knowledge graphs, and in particular to a case retrieval method, device, device and storage medium based on knowledge graphs. Background technique [0002] The similar case search method is a method of obtaining case information by searching past cases based on the relevant information of the case to find the most similar case. The obtained case information can provide reference for judges or relevant personnel of litigation cases. The current search method for similar cases is to search the full text of the judgment documents only based on the relevant fields in the judgment documents, and does not deal with the complexity of the "key facts" of judicial judgments that do not have a clear corresponding relationship with relevant knowledge of judicial judgments in the judgment documents. The logic is difficult to use keywords to describe and the focus of disputes, causes of action, and appeals are not consi...

AI Technical Summary

Problems solved by technology

[0004] Since the referee knowledge map is only a knowledge map constructed based on the content of the judgment document, the searched reference objects are relatively single, and the obtained case texts are not very useful as a reference, which increases the number of searches and search methods. Low availability of the retrieval system

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