7607 search results - page 320 / 1522 » Querying data provenance |
178
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DASFAA
1999
IEEE
15 years 11 months ago
1999
IEEE
The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach h...
184
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EMNLP
2007
15 years 8 months ago
2007
Traditional research on spelling correction in natural language processing and information retrieval literature mostly relies on pre-defined lexicons to detect spelling errors. Bu...
219
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IJCAI
2007
15 years 8 months ago
2007
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...
203
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TKDE
2008
15 years 6 months ago
2008
A major problem of current Web search is that search queries are usually short and ambiguous, and thus are insufficient for specifying the precise user needs. To alleviate this pro...
168
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SIGIR
2002
ACM
15 years 6 months ago
2002
ACM
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...