716 search results - page 64 / 144 » Optimizing Queries in Extended Relational Databases |
109
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APWEB
2010
Springer
15 years 4 months ago
2010
Springer
Abstract. The term Deep Web (sometimes also called Hidden Web) refers to the data content that is created dynamically as the result of a specific search on the Web. In this respec...
200
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ICDE
2007
IEEE
16 years 20 days ago
2007
IEEE
Linear optimization queries retrieve the top-K tuples in a sliding window of a data stream that maximize/minimize the linearly weighted sums of certain attribute values. To effici...
SIGMOD
1993
ACM
15 years 3 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
PPDP
2010
Springer
14 years 9 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
SIGMOD
2000
ACM
15 years 3 months ago
2000
ACM
Commercial relational database systems today provide only limited temporal support. To address the needs of applications requiring rich temporal data and queries, we have built TI...