34 search results - page 1 / 7 » Multi-dimensional Selectivity Estimation Using Compressed Hi... |
SEBD
2004
13 years 5 months ago
2004
Abstract. The need to compress data into synopses of summarized information often arises in many application scenarios, where the aim is to retrieve aggregate data efficiently, pos...
SIGMOD
1999
ACM
13 years 8 months ago
1999
ACM
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
ISCI
2007
13 years 4 months ago
2007
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
ICIP
2003
IEEE
14 years 6 months ago
2003
IEEE
Given a color image previously compressed using JPEG, we estimate the image's JPEG compression history components including the color transformation, subsampling, and the qua...
VLDB
2004
ACM
13 years 10 months ago
2004
ACM
Cost-based XML query optimization calls for accurate estimation of the selectivity of path expressions. Some other interactive and internet applications can also benefit from suc...