68 search results - page 4 / 14 » Wavelet-Based Histograms for Selectivity Estimation |
81
Voted
BNCOD
2008
14 years 11 months ago
2008
Abstract. Accurate selectivity estimations are essential for query optimization decisions where they are typically derived from various kinds of histograms which condense value dis...
90
Voted
ICIP
2010
IEEE
14 years 7 months ago
2010
IEEE
The dual-tree wavelet transform is here applied to the problem of fractal dimension estimation. The Hurst parameter of fractional Brownian surfaces is estimated using various wave...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
Many database applications have the emerging need to support fuzzy queries that ask for strings that are similar to a given string, such as “name similar to smith” and “tele...
ECCV
2002
Springer
15 years 11 months ago
2002
Springer
The performances of many image analysis tasks depend on the image resolution at which they are applied. Traditionally, resolution selection methods rely on spatial derivatives of i...
174
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ICDE
2001
IEEE
15 years 11 months ago
2001
IEEE
Spatial Joins are important and time consuming operations in spatial database management systems. It is crucial to be able to accurately estimate the performance of these operatio...