721 search results - page 27 / 145 » Supporting top-k join queries in relational databases |
VLDB
1994
ACM
15 years 1 months ago
1994
ACM
This paper presents an innovative partitionbased time join strategy for temporal databases where time is represented by time intervals. The proposed method maps time intervals to ...
GECCO
2007
Springer
15 years 3 months ago
2007
Springer
Genetic algorithms (GAs) have long been used for large join query optimization (LJQO). Previous work takes all queries as based on one granularity to optimize GAs and compares the...
166
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ICDE
1998
IEEE
15 years 11 months ago
1998
IEEE
Current data repositories include a variety of data types, including audio, images and time series. State of the art techniques for indexing such data and doing query processing r...
197
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ICDE
1995
IEEE
15 years 11 months ago
1995
IEEE
We describe a two-level client-side cache for composite objects mapped as views of a relational database. A semantic model, the Structural Model, is used to specify joins on the r...
ICDE
2005
IEEE
15 years 3 months ago
2005
IEEE
Queries on XML documents typically combine selections on element contents, and, via path expressions, the structural relationships between tagged elements. Efficient support for ...