发明名称 METHODS AND SYSTEMS FOR CREATING AND USING AN ADAPTIVE THESAURUS
摘要 <p>Methods and systems are provided for creating an adaptive thesaurus. A term pair including an index term and an expansion term is received. A recall gain, an expansion independence, and a semantic similarity of the term pair are calculated using a processor. Whether to store the term pair is determined based on the recall gain, the expansion independence, and the semantic similarity. The term pair is stored based on the determination. Methods and systems are provided for searching using an adaptive thesaurus. A search query including a query term is received. An expansion term stored in association with an index term matching the query term in the adaptive thesaurus is retrieved. Using a processor, the search query is expanded using the expansion term based on a recall gain, an expansion independence, and a semantic similarity.</p>
申请公布号 WO2010088062(A1) 申请公布日期 2010.08.05
申请号 WO2010US21109 申请日期 2010.01.15
申请人 LEXISNEXIS;LORITZ, DONALD;CHEN, SHIAN-JUNG;EDALA, NARASIMHA;SILVER, HARRY 发明人 LORITZ, DONALD;CHEN, SHIAN-JUNG;EDALA, NARASIMHA;SILVER, HARRY
分类号 G06F17/21 主分类号 G06F17/21
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