Post-translation expansion method for Chinese-English cross-language query based on fully weighted rule consequent

Abstract

The invention discloses a post-translation extension method for Chinese-English cross-language query based on fully weighted rule-based post-translation. Firstly, the Chinese-English cross-language primary search is performed, and the first English documents in the first check are extracted, and the relevant document set of the first check is constructed and preprocessed by user correlation judgment. Finally, the fully weighted item set support calculation method that fuses the item set weight and frequency is used to mine the fully weighted frequent item set containing the translated original query terms from the relevant document set of the initial inspection, and the fully weighted confidence-interest evaluation based on the fully weighted confidence degree is used. The framework mines fully weighted frequent itemsets. The antecedent is the fully weighted association rule between English feature words of the translated original query term, and the subsequent item of the extraction rule is used as a Chinese-English cross-language post-translation expansion. The post-translation expansion and the post-translation original query The word combination retrieves the English document again for the new query. The method of the invention can enhance and improve the performance of cross-language information retrieval, reduce serious drift of query topics and word mismatch in cross-language information retrieval, and has high application value and broad application prospect.

Description

technical field [0001] The invention belongs to the field of information retrieval, in particular to a method for post-translation extension of Chinese-English cross-language query based on complete weighted rule consequences. Background technique [0002] Cross-lingual information retrieval refers to the technology of retrieving information resources in other languages ​​with a query in one language by means of machine translation. The language in which the user query is expressed is called the source language, and the language in which the documents are retrieved is called the target language. Cross-language information retrieval is affected by query translation quality and synonyms, polysemous words, etc., which often lead to serious drift of query topics, word mismatch, ambiguity and polysemy in translation of query items, etc. Cross-language query expansion is one of the key technologies to solve the above problems. Cross-language query expansion refers to the process...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention proposes a Chinese-English cross-language query post-translation extension method based on fully weighted rule consequences, which can improve and improve cross-language retrieval performance, and solve query topics in cross-language information retrieval Drift and word mismatch problems are applicable to the field of cross-language information retrieval, and can also be applied to cross-language search engines to improve search engine retrieval performance

Images