55 search results - page 3 / 11 » Evaluating rank joins with optimal cost |
VLDB
2004
ACM
14 years 5 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
DASFAA
2005
IEEE
13 years 11 months ago
2005
IEEE
In many different application areas, e.g. space observation systems or engineering systems of world-wide operating companies, there is a need for an efficient distributed intersect...
ICDE
2012
IEEE
11 years 7 months ago
2012
IEEE
—Fuzzy/similarity joins have been widely studied in the research community and extensively used in real-world applications. This paper proposes and evaluates several algorithms f...
BNCOD
2006
13 years 6 months ago
2006
We examine the problem of producing the optimal evaluation order for queries containing joins, selections, and maps. Specifically, we look at the case where common subexpressions i...
GIS
2006
ACM
14 years 6 months ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...