40 search results - page 2 / 8 » Selectivity Estimation by Batch-Query based Histogram and Pa... |
SIGMOD
1998
ACM
13 years 9 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
WAIM
2004
Springer
13 years 10 months ago
2004
Springer
Selectivity estimation of path expressions in querying XML data plays an important role in query optimization. A path expression may contain multiple branches with predicates, each...
FSS
2007
13 years 4 months ago
2007
This paper presents a new fuzzy framework for main motion estimation in video sequences. The estimation is performed using a fuzzy representation of pixel gray levels. The motion ...
ICDE
2001
IEEE
14 years 6 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...
PKDD
2005
Springer
13 years 10 months ago
2005
Springer
This paper presents an unsupervised discretization method that performs density estimation for univariate data. The subintervals that the discretization produces can be used as the...