6274 search results - page 253 / 1255 » From query complexity to computational complexity |
121
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ICASSP
2011
IEEE
14 years 8 months ago
2011
IEEE
A new topology for combination of adaptive filters is proposed. Based on incremental strategies, the standard convexly combined parallel-independent filters are rearranged into ...
218
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ICDE
1999
IEEE
16 years 6 months ago
1999
IEEE
Indexes play a vital role in decision support systems by reducing the cost of answering complex queries. A popular methodology for choosing indexes that is adopted by database adm...
182
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ECWEB
2004
Springer
15 years 10 months ago
2004
Springer
Abstract. Most e-commerce Web sites dynamically generate their contents through a three-tier server architecture composed of a Web server, an application server, and a database ser...
181
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ER
1999
Springer
15 years 9 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
149
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PVLDB
2008
15 years 4 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...