353 search results - page 58 / 71 » Processing Top-k Join Queries |
ICWS
2009
IEEE
14 years 5 months ago
2009
IEEE
—The vision of the Semantic Web has brought about new challenges at the intersection of web research and data management. One fundamental research issue at this intersection is t...
VLDB
2007
ACM
14 years 1 months ago
2007
ACM
For a large number of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smalles...
FOCS
1998
IEEE
14 years 2 days ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
ICDE
2010
IEEE
14 years 2 months ago
2010
IEEE
— We demonstrate ROX, a run-time optimizer of XQueries, that focuses on finding the best execution order of XPath steps and relational joins in an XQuery. The problem of join or...
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract— It is widely realized that the integration of information retrieval (IR) and database (DB) techniques provides users with a broad range of high quality services. A new ...