Systems and methods are disclosed for improving search quality. Search queries are expanded using a variety of linguistic techniques. For example, the words in a query can be supplemented with related words obtained from a database of compound words, inflectional forms, and/or orthographic variations. The expanded queries can be used to perform searches for responsive documents. A document index can be expanded using similar techniques.
申请公布号
WO2005066847(A3)
申请公布日期
2005.10.06
申请号
WO2004US43918
申请日期
2004.12.29
申请人
GOOGLE INC.;FRANZ, ALEXANDER, M.;HENZINGER, MONIKA