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|1. (WO2015043077) SEMANTIC INFORMATION ACQUISITION METHOD, KEYWORD EXPANSION METHOD THEREOF, AND SEARCH METHOD AND SYSTEM|
|Applicants:||PEKING UNIVERSITY FOUNDER GROUP CO., LTD.
FOUNDER APABI TECHNOLOGY LIMITED
|Title:||SEMANTIC INFORMATION ACQUISITION METHOD, KEYWORD EXPANSION METHOD THEREOF, AND SEARCH METHOD AND SYSTEM|
The present invention provides a semantic information acquisition method and system, and corresponding keyword expansion and search methods and systems, comprising: searching for, then classifying an article; then, performing word segmentation according to the classified article to obtain the words in said class, and setting said class and words to serve as the semantic information of the keyword; also, a method and system using the semantic information acquisition method to expand a keyword, and a method and system using keyword expansion to perform a search. The described semantic information acquisition method effectively avoids the technical problems in the prior art of only being able to obtain semantic information of English vocabulary; it being difficult to keep Chinese thesauruses up to date, causing it to be impossible to accurately obtain the semantic information of these words on the basis of Chinese thesauruses; and it also being impossible to classify semantic information based on category information. The invention is particularly suitable for searching using a keyword, searching a large number of texts, and organizing large amounts of related data and information.