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» Selectivity Estimation of Window Queries
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ICDE
2003
IEEE
117views Database» more  ICDE 2003»
14 years 7 months ago
Selectivity Estimation for Predictive Spatio-Temporal Queries
Yufei Tao, Jimeng Sun, Dimitris Papadias
JIS
2006
96views more  JIS 2006»
13 years 6 months ago
A study of the effect of term proximity on query expansion
Query expansion terms are often used to enhance original query formulations in document retrieval. Such terms are usually selected from the entire documents or from windows or pas...
Olga Vechtomova, Ying Wang
SSD
2001
Springer
94views Database» more  SSD 2001»
13 years 10 months ago
Selectivity Estimation of Complex Spatial Queries
Several studies have focused on the efficient processing of simple spatial query types such as selections and spatial joins. Little work, however, has been done towards the optimiz...
Nikos Mamoulis, Dimitris Papadias
CIKM
2011
Springer
12 years 6 months ago
Estimating selectivity for joined RDF triple patterns
A fundamental problem related to RDF query processing is selectivity estimation, which is crucial to query optimization for determining a join order of RDF triple patterns. In thi...
Hai Huang 0003, Chengfei Liu
JSS
2008
97views more  JSS 2008»
13 years 6 months ago
Proactive and reactive multi-dimensional histogram maintenance for selectivity estimation
Many state-of-the-art selectivity estimation methods use query feedback to maintain histogram buckets, thereby using the limited memory efficiently. However, they are "reacti...
Zhen He, Byung Suk Lee, Xiaoyang Sean Wang