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» Wavelet synopses with error guarantees
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VLDB
2005
ACM
86views Database» more  VLDB 2005»
13 years 11 months ago
One-Pass Wavelet Synopses for Maximum-Error Metrics
We study the problem of computing waveletbased synopses for massive data sets in static and streaming environments. A compact representation of a data set is obtained after a thre...
Panagiotis Karras, Nikos Mamoulis
VLDB
2001
ACM
144views Database» more  VLDB 2001»
14 years 6 months ago
Approximate query processing using wavelets
Approximate query processing has emerged as a costeffective approach for dealing with the huge data volumes and stringent response-time requirements of today's decision-suppo...
Kaushik Chakrabarti, Minos N. Garofalakis, Rajeev ...
ICDE
2007
IEEE
124views Database» more  ICDE 2007»
14 years 7 months ago
The Haar+ Tree: A Refined Synopsis Data Structure
We introduce the Haar+ tree: a refined, wavelet-inspired data structure for synopsis construction. The advantages of this structure are twofold: First, it achieves higher synopsis...
Panagiotis Karras, Nikos Mamoulis
ICASSP
2008
IEEE
14 years 18 days ago
A new class of lifting wavelet transform for guaranteeing losslessness of specific signals
This paper proposes a new class of lifting wavelet transform which can guarantee losslessness of specific signals, e.g. white balance. The 5/3 wavelet transform composed of two li...
Hitoshi Kiya, Masahiro Iwahashi, Osamu Watanabe
KDD
2005
ACM
80views Data Mining» more  KDD 2005»
14 years 6 months ago
Wavelet synopsis for data streams: minimizing non-euclidean error
We consider the wavelet synopsis construction problem for data streams where given n numbers we wish to estimate the data by constructing a synopsis, whose size, say B is much sma...
Sudipto Guha, Boulos Harb