2217 search results - page 147 / 444 » Rank-aware Query Optimization |
158
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ICDE
2007
IEEE
16 years 19 days ago
2007
IEEE
Privacy is a serious concern when microdata need to be released for ad hoc analyses. The privacy goals of existing privacy protection approaches (e.g., -anonymity and -diversity) ...
157
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ICMCS
2006
IEEE
16 years 11 days ago
2006
IEEE
Text-based search using video speech transcripts is a popular approach for granular video retrieval at the shot or story level. However, misalignment of speech and visual tracks, ...
144
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CIKM
2005
Springer
15 years 12 months ago
2005
Springer
We examine issues in the design of fully dynamic information retrieval systems with support for instantaneous document insertions and deletions. We present one such system and dis...
140
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ICDT
2005
ACM
15 years 12 months 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...
161
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SSD
2005
Springer
15 years 11 months 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-...