687 search results - page 15 / 138 » Query Transformation for PSJ-Queries |
DBPL
1997
Springer
14 years 23 days ago
1997
Springer
We consider spatial databases that can be defined in terms of polynomial inequalities, and we are interested in monotonic transformations of spatial databases. We investigate a hi...
VLDB
2000
ACM
14 years 5 days ago
2000
ACM
We present the TreeScape system that, unlike any other system known to the authors, enables the reuse of pre-computed aggregate query results for irregular dimension hierarchies, ...
ACL
2010
13 years 6 months ago
2010
This paper explores the use of clickthrough data for query spelling correction. First, large amounts of query-correction pairs are derived by analyzing users' query reformula...
PPDP
2010
Springer
13 years 7 months ago
2010
Springer
This paperdescribes the use of a powerful graph query language for querying programs, and a novel combination of transformations for generating efficient implementations of the q...
JAPLL
2010
13 years 7 months ago
2010
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...