1300 search results - page 203 / 260 » XML Query Processing and Optimization |
114
Voted
VLDB
2004
ACM
15 years 7 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
108
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DMSN
2005
ACM
15 years 3 months ago
2005
ACM
In this paper, we introduce a rotating interrogation technique for sensor networks called Whirlpool. Whirlpool provides opportunities to optimize data delivery in time-critical mo...
232
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ICDE
2005
IEEE
16 years 3 months ago
2005
IEEE
Data warehousing and on-line analytical processing (OLAP) are essential for decision support applications. Common OLAP operations include for example drill down, roll up, pivot an...
218
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ICDE
1998
IEEE
16 years 3 months ago
1998
IEEE
The association of timestamps with various data items such as tuples or attribute values is fundamental to the management of time-varying information. Using intervals in timestamp...
120
Voted
SIGMOD
2000
ACM
15 years 6 months ago
2000
ACM
We present MOCHA, a new self-extensible database middleware system designed to interconnect distributed data sources. MOCHA is designed to scale to large environments and is based...