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» Adaptive Selectivity Estimation Using Query Feedback
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ADC
2003
Springer
94views Database» more  ADC 2003»
14 years 4 months ago
Multi-resolution Algorithms for Building Spatial Histograms
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
Qing Liu, Yidong Yuan, Xuemin Lin
CVPR
2012
IEEE
12 years 1 months ago
Background modeling using adaptive pixelwise kernel variances in a hybrid feature space
Recent work on background subtraction has shown developments on two major fronts. In one, there has been increasing sophistication of probabilistic models, from mixtures of Gaussi...
Manjunath Narayana, Allen R. Hanson, Erik G. Learn...
ICMCS
2005
IEEE
183views Multimedia» more  ICMCS 2005»
14 years 4 months ago
Bandwidth Estimation and Robust Video Streaming Over 802.11E Wireless Lans
Streaming high quality audio/video (AV) from home media sources to TV sets over a wireless local area network (WLAN) is a challenging problem because of the fluctuating bandwidth...
Mehmet Umut Demircin, Peter van Beek
BNCOD
2008
96views Database» more  BNCOD 2008»
14 years 9 days ago
Smooth Interpolating Histograms with Error Guarantees
Abstract. Accurate selectivity estimations are essential for query optimization decisions where they are typically derived from various kinds of histograms which condense value dis...
Thomas Neumann, Sebastian Michel
SIGIR
1998
ACM
14 years 3 months ago
Improving Automatic Query Expansion
Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via adhoc feedback improves the retrieval e ectiveness of such ...
Mandar Mitra, Amit Singhal, Chris Buckley