6746 search results - page 599 / 1350 » Multimodal Database Query |
195
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ADC
2007
Springer
16 years 1 months ago
2007
Springer
Histograms are used extensively for selectivity estimation and approximate query processing. Workloadaware dynamic histograms can self-tune itself based on query feedback without ...
181
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ADBIS
2006
Springer
16 years 1 months ago
2006
Springer
Web communities involve networks of loosely coupled data sources. Members in those communities should be able to pose queries and gather results from all data sources in the networ...
217
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TIME
2005
IEEE
16 years 1 months ago
2005
IEEE
Historical information can be effectively preserved using XML and searched through powerful historical queries written in XQuery. Indeed, by storing the successive versions of a d...
169
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ICDT
2005
ACM
16 years 29 days ago
2005
ACM
d abstract) Foto Afrati1 and Rada Chirkova2 1 Electrical and Computing Eng., National Technical University of Athens, 157 73 Athens, Greece 2 Computer Science Department, North Car...
197
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SSD
2005
Springer
16 years 28 days ago
2005
Springer
Abstract. Query optimization is an important functionality of modern database systems and often based on estimating the selectivity of queries before actually executing them. Well-...