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VLDB
1998
ACM
92views Database» more  VLDB 1998»
13 years 9 months ago
Optimal Histograms with Quality Guarantees
H. V. Jagadish, Nick Koudas, S. Muthukrishnan, Vis...
ICDE
2008
IEEE
155views Database» more  ICDE 2008»
14 years 6 months ago
Lattice Histograms: a Resilient Synopsis Structure
Despite the surge of interest in data reduction techniques over the past years, no method has been proposed to date that can always achieve approximation quality preferable to that...
Panagiotis Karras, Nikos Mamoulis
KDD
2007
ACM
153views Data Mining» more  KDD 2007»
14 years 5 months ago
Exploiting duality in summarization with deterministic guarantees
Summarization is an important task in data mining. A major challenge over the past years has been the efficient construction of fixed-space synopses that provide a deterministic q...
Panagiotis Karras, Dimitris Sacharidis, Nikos Mamo...
BNCOD
2008
96views Database» more  BNCOD 2008»
13 years 6 months 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
PODS
2005
ACM
115views Database» more  PODS 2005»
14 years 5 months ago
Histograms revisited: when are histograms the best approximation method for aggregates over joins?
The traditional statistical assumption for interpreting histograms and justifying approximate query processing methods based on them is that all elements in a bucket have the same...
Alin Dobra