2145 search results - page 415 / 429 » Pattern-Based Query Answering |
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
In the rank join problem we are given a relational join R1 1 R2 and a function that assigns numeric scores to the join tuples, and the goal is to return the tuples with the highes...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
For Web applications in which the database component is the bottleneck, scalability can be provided by a third-party Database Scalability Service Provider (DSSP) that caches appli...
ICSE
2005
IEEE-ACM
14 years 7 months ago
2005
IEEE-ACM
Sensitive data are increasingly available on-line through the Web and other distributed protocols. This heightens the need to carefully control access to data. Control means not o...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
An ancestry labeling scheme labels the nodes of any tree in such a way that ancestry queries between any two nodes can be answered just by looking at their corresponding labels. T...
ICDT
2010
ACM
14 years 5 months ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...