发明名称 |
Prediction of query difficulty for a generic search engine |
摘要 |
A query difficulty prediction unit includes a query difficulty predictor to determine the extent of overlap between query documents received from a search engine operating on an input query and sub-query documents received from the search engine operating on sub-queries of the input query. The unit generates a query difficulty prediction from the extent of overlap.
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申请公布号 |
US2006085399(A1) |
申请公布日期 |
2006.04.20 |
申请号 |
US20040968692 |
申请日期 |
2004.10.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CARMEL DAVID;DARLOW LAWRENCE A.;FINE SHAI;YOM-TOV ELAD |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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