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1. (WO2015043077) SEMANTIC INFORMATION ACQUISITION METHOD, KEYWORD EXPANSION METHOD THEREOF, AND SEARCH METHOD AND SYSTEM

Pub. No.:    WO/2015/043077    International Application No.:    PCT/CN2013/088782
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Dec 07 00:59:59 CET 2013
IPC: G06F 17/30
Applicants: PEKING UNIVERSITY FOUNDER GROUP CO., LTD.
北大方正集团有限公司
FOUNDER APABI TECHNOLOGY LIMITED
北京方正阿帕比技术有限公司
PEKING UNIVERSITY
北京大学
Inventors: YE, Mao
叶茂
TANG, Zhi
汤帜
XU, Jianbo
徐剑波
JIN, Lifeng
金立峰
WAN, Wei
万巍
Title: SEMANTIC INFORMATION ACQUISITION METHOD, KEYWORD EXPANSION METHOD THEREOF, AND SEARCH METHOD AND SYSTEM
Abstract:
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.