8763 search results - page 21 / 1753 » Querying Database Knowledge |
173
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
The detection of duplicate tuples, corresponding to the same real-world entity, is an important task in data integration and cleaning. While many techniques exist to identify such...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
We present several methods for mining knowledge from the query logs of the MSN search engine. Using the query logs, we build a time series for each query word or phrase (e.g., `Th...
105
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CIDR
2007
14 years 11 months ago
2007
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
101
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ICDE
2006
IEEE
15 years 4 months ago
2006
IEEE
This paper presents a description of seven systems, which use database technology to both represent knowledge persistently and make scalable queries on it, in the Semantic Web con...
ICDT
2012
ACM
13 years 12 days ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...