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Title: Index term weighing computation method based on structural constraint in Chinese information retrieval
Other Title: 中文信息检索中基于结构约束的索引词权重计算方法
Authors: Luk, RWP 
Issue Date: 11-May-2011
Source: 中国专利 ZL 200810095689.5
Abstract: The invention relates to a feature weighing computation method based on a structural constraint in a Chinese information retrieval. The method comprises the following steps: a. carrying out structuring processing to inquiry and obtaining a structuring inquiry result, wherein the structuring processing comprises one or a plurality of following steps: splitting words, carrying out part-of-speech tagging to splitted works, carrying out shallow parsing to inquiry or carrying out parsing to inquiry; b. determining an index term according to the structuring inquiry result and then determining an inquiry-context property set of the index term according to the structuring inquiry result which is adjacent to the index term and positioned in a word list; c. computing the weighing value of each property in the inquiry-context property set; d. combining the weighing values of all properties into property values of the index terms through a first composite function; and f. combining the property values of the index terms by a second composite function and obtaining the index term weighing. The method can compute the weighing accurately no matter whether the index terms exist in the word list or not.
Publisher: 中华人民共和国国家知识产权局
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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