5166 search results - page 92 / 1034 » Web Query Optimizer |
ICDT
1999
ACM
15 years 6 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
115
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KCAP
2009
ACM
15 years 7 months ago
2009
ACM
PowerAqua1 is a Question Answering system, which takes as input a natural language query and is able to return answers drawn from relevant semantic resources found anywhere on the...
124
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BIS
2008
15 years 3 months ago
2008
Deep web search requires a transformation between search keywords and semantically described and well-formed data structures. We approached this problem in our "In the Web of ...
123
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PVLDB
2010
15 years 24 days ago
2010
We present in this paper ObjectRunner, a system for extracting, integrating and querying structured data from the Web. Our system harvests real-world items from template-based HTM...
134
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SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
Time-referenced data are pervasive in most real-world databases. Recent advances in temporal query languages show that such database applications may benefit substantially from bu...