Diversified expansion method of keyword

Abstract

The invention relates to a method assisted for searching network information. Through the method, diversified expansion of a keyword can be realized; the method can be embedded into a plurality of web information service systems; the method is based on a simple webpage preprocessing and organizing mechanism; the method is capable of obtaining a diversified expansion word set in different ranges of the keywords, building an index network based on webpage classification according to a hyperlink of an internet and realizing diversified expansion of the keyword based on the built index network; and even if a user did not inquire the keyword or the field before, the expansion still can recommend most possible query semantics of the user.

Description

technical field [0001] The invention belongs to the field of Web information retrieval, and in particular relates to a keyword expansion method in Web information retrieval and Web information application. Background technique [0002] With the popularization of the Internet in people's daily life, the resources on the Internet are increasing exponentially. All kinds of information are scattered on the Internet. At present, most users use search engines to find information. However, relying on keyword matching technology to filter information makes the existing search engine technology have great limitations. One of shortcoming is: the quality of user service quality of search engine depends on the precision degree of the keyword of user input to a large extent. In fact, only a small number of users give accurate search terms at one time. Due to the differences in the user's prior knowledge and the user's expressive ability, in many cases, the user needs the search engine...

AI Technical Summary

Problems solved by technology

At the same time, this type of recommendation requires the system to extract high-frequency keywords in real time, which brings a certain load and delay to the system

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