1529 search results - page 244 / 306 » Querying for meta knowledge |
180
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EDBT
2009
ACM
16 years 1 months ago
2009
ACM
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
168
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ICN
2007
Springer
16 years 14 days ago
2007
Springer
—Peer to peer is an important way for files sharing. In existing P2P systems, users need to query and retrieve files, and have to know some knowledge, such as file names, keyword...
170
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GIR
2006
ACM
16 years 9 days ago
2006
ACM
Most human activities occur around where the user is physically located. Knowing the geographical serving area of web resources, therefore, is very important for many web applicat...
201
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ESWS
2005
Springer
15 years 12 months ago
2005
Springer
While classic information retrieval methods return whole documents as a result of a query, many information demands would be better satisfied by fine-grain access inside the docu...
187
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SIGIR
2004
ACM
15 years 11 months ago
2004
ACM
Many museum and library archives are digitizing their large collections of handwritten historical manuscripts to enable public access to them. These collections are only available...