A method and system for expanding search terms

Abstract

The invention provides a search word expanding method and system. The method comprises the steps that one or more label words are set for each general term to form a label word dictionary; weighting is conducted on each label word where each second general term belongs according to the relationships between the second general terms around the first general terms, and sorting is conducted on the label words; a preset number of high-weight label words are extracted from all the label words where the second general terms belong to serve as the expansion range of the first general terms; when the first general terms are input to be used as search words, the general terms corresponding to the label words in the expansion range of the first general terms are displayed; needed general terms are selected from the general terms corresponding to the label words in the expansion range to be used as expanded search words of the search words. According to the technical scheme, the search word expanding method and system can help a user obtain search words meeting information search targets, and therefore the information search efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of information retrieval, in particular to a method and system for expanding search words. Background technique [0002] With the advent of the information age, people have entered the ocean of information. In the face of massive information, people are at a loss, and it is difficult to find the information they need in a short time. However, the development of computer technology and network technology has provided a certain degree of help to the field of information retrieval. People can build their own retrieval strategies and use computer technology and network technology to obtain correct information. [0003] The so-called retrieval strategy is to determine the data source and terms to be retrieved on the basis of analyzing the retrieval questions, and to clarify the logical relationship between the retrieval terms and the scientific arrangement of the search steps. Retrieval formula (that is, the ex...

AI Technical Summary

Problems solved by technology

[0005] In the process of constructing a complete and clear search formula, the user first needs to find the appropriate search terms. However, before the search, the user often only has a superficial grasp of the information fields to be obtained, understands some concepts, and how to pass these preliminary concepts. It is very difficult for users to accurately construct retrieval formulas

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