995 search results - page 124 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
113
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ICDT
2005
ACM
15 years 8 months ago
2005
ACM
We study the problem of rewriting queries using views in the presence of access patterns, integrity constraints, disjunction, and negation. We provide asymptotically optimal algori...
246
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ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
RFID technology provides significant advantages over traditional object-tracking technology and is increasingly adopted and deployed in real applications. RFID applications genera...
248
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ICDE
2009
IEEE
16 years 4 months ago
2009
IEEE
Keyword queries enjoy widespread usage as they represent an intuitive way of specifying information needs. Recently, answering keyword queries on graph-structured data has emerged ...
JASIS
2006
15 years 3 months ago
2006
e to the CAB abstracts database. Data-gathering techniques included questionnaires, screen capturing software, and interviews. The results presented here relate to issues of search...
110
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EDBT
2006
ACM
16 years 3 months ago
2006
ACM
Navigational queries on Web-accessible life science sources pose unique query optimization challenges. The objects in these sources are interconnected to objects in other sources, ...