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DEVICE AND METHOD FOR RETRIEVAL QUESTION EXPANSION USING CLUSTERING AND PROGRAM RECORDING MEDIUM FOR RETRIEVAL QUESTION EXPANDING PROCESS
DEVICE AND METHOD FOR RETRIEVAL QUESTION EXPANSION USING CLUSTERING AND PROGRAM RECORDING MEDIUM FOR RETRIEVAL QUESTION EXPANDING PROCESS
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机译：使用用于检索问题扩展过程的聚类和程序记录介质的检索问题扩展的装置和方法
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摘要
PROBLEM TO BE SOLVED: To generates a proper secondary retrieval question according to a primary retrieval result and to improve the reproduction rate and precision of document retrieval with good balance as to the retrieval question expansion processor which generates the secondary retrieval question from the primary retrieval result in large-quantity document retrieval. SOLUTION: A clustering part 11 clusters a document group by using the primary retrieval result 41 of a retrieval engine 3 and outputs a cluster set 45. A secondary retrieval question generation part 12 performs cluster selection, document-in-cluster selection, etc., as to the cluster set 45, selects a cluster matching retrieval question expansion, and uses it to generate the secondary retrieval question 47.
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