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» Optimal Workload-Based Weighted Wavelet Synopses
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ICDT
2005
ACM
108views Database» more  ICDT 2005»
14 years 4 months ago
Optimal Workload-Based Weighted Wavelet Synopses
In recent years wavelets were shown to be effective data synopses. We are concerned with the problem of finding efficiently wavelet synopses for massive data sets, in situations...
Yossi Matias, Daniel Urieli
JCP
2007
118views more  JCP 2007»
13 years 10 months ago
Dynamic Nonuniform Data Approximation in Databases with Haar Wavelet
Abstract— Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the...
Su Chen, Antonio Nucci