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SSDBM
2006
IEEE
140views Database» more  SSDBM 2006»
15 years 8 months ago
A Dynamic Mobility Histogram Construction Method Based on Markov Chains
With the recent progress of spatial information technologies and communication technologies, it has become easier to track positions of a large number of moving objects in real-ti...
Yoshiharu Ishikawa, Yoji Machida, Hiroyuki Kitagaw...
ISCI
2007
115views more  ISCI 2007»
15 years 2 months ago
Compressed histograms with arbitrary bucket layouts for selectivity estimation
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
Dennis Fuchs, Zhen He, Byung Suk Lee
ICDE
2006
IEEE
134views Database» more  ICDE 2006»
16 years 3 months ago
ISOMER: Consistent Histogram Construction Using Query Feedback
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
Utkarsh Srivastava, Peter J. Haas, Volker Markl, M...
ADC
2007
Springer
145views Database» more  ADC 2007»
15 years 8 months ago
Selectivity Estimation by Batch-Query based Histogram and Parametric Method
Histograms are used extensively for selectivity estimation and approximate query processing. Workloadaware dynamic histograms can self-tune itself based on query feedback without ...
Jizhou Luo, Xiaofang Zhou, Yu Zhang, Heng Tao Shen...
EDBT
2004
ACM
89views Database» more  EDBT 2004»
16 years 2 months ago
Management of Highly Dynamic Multidimensional Data in a Cluster of Workstations
Vassil Kriakov, Alex Delis, George Kollios