5954 search results - page 260 / 1191 » Querying Bi-level Information |
176
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CIKM
2004
Springer
16 years 2 days ago
2004
Springer
Query expansion is a well-known technique that has been shown to improve average retrieval performance. This technique has not been used in many operational systems because of the...
180
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DEXA
1997
Springer
15 years 10 months ago
1997
Springer
Abstract. In this paper, we consider a multidatabase system which consists of media databases and traditional alphanumeric databases. The semantic relationships which may exist amo...
196
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
The skyline query, as an important operator in databases for multi-preference analysis and decision making, has received much attention recently due to its wide application backgr...
160
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ECIR
2006
Springer
15 years 8 months ago
2006
Springer
Abstract. The following paper proposes a new kind of relevance feedback. It shows how so called query profiles can be employed for disambiguation and clarification. Query profiles ...
171
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DGO
2003
15 years 8 months ago
2003
To query XML data over the Web, query engines need to be able to resolve semantic differences between heterogeneous attributes that are conceptually similar. This demo presents a ...