Information retrieval method and device

Abstract

The invention discloses an information retrieval method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the steps of obtaining a to-be-retrieved text; identifying a to-be-retrieved entity in the to-be-retrieved text; matching the to-be-retrieved entity with entities in a preset policy map knowledge base to obtain a plurality of retrieval results corresponding to the to-be-retrieved text, and obtaining a first result set based on the plurality of retrieval results. According to the implementation mode, the policy atlas knowledge base isused for enhancing an existing policy retrieval scheme, the problems that in the prior art, searching cannot be achieved and searching is incomplete are solved, more comprehensive and accurate searchresults can be returned to a user, and retrieval accuracy is improved.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to an information retrieval method and device. Background technique [0002] For the search policy scenario, in many cases, users are faced with the situation that the search cannot be done, the search is not accurate, and the search is incomplete. Among them, the main reason is that most of the search engines perform word segmentation according to the sentence searched by the user, and use several words obtained after the word segmentation as keywords for searching. If the word entered by the user does not appear in the full text, the search will not return any results. This method relies on the accuracy of the search terms, and the probability of everyday words being written into the policy as an official document is very small, which makes searching difficult. In addition, the retrieval method using keyword matching cannot solve the dilemma of semantic search. Conte...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides an information retrieval method and device, which can use the policy map knowledge base to enhance the existing policy retrieval scheme, solve the problem that the existing technology cannot be searched and the search is incomplete, and can return to the user More comprehensive and accurate search results, and improved retrieval accuracy; according to the correlation between the text to be retrieved and the retrieval results and the semantics of the text to be retrieved, the retrieval results are sorted, which not only solves the semantic problems that cannot be solved in the existing technology , and also make the sorting of the search results more in line with the user's search expectations

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