77 search results - page 2 / 16 » Conjunctive Query Answering in SH using Knots |
CORR
2010
Springer
13 years 6 months ago
2010
Springer
Suppose we would like to know all answers to a set of statistical queries C on a data set up to small error, but we can only access the data itself using statistical queries. A tr...
PODS
1998
ACM
13 years 10 months ago
1998
ACM
We study the complexity of the problem of answering queries using materialized views. This problem has attracted a lot of attention recently because of its relevance in data integ...
VLDB
2003
ACM
14 years 6 months ago
2003
ACM
In data applications such as information integration, there can be limited access patterns to relations, i.e., binding patterns require values to be specified for certain attribut...
ICDT
2007
ACM
14 years 3 days ago
2007
ACM
Query containment is a fundamental problem of databases. Given two queries q1 and q2, it asks whether the set of answers to q1 is included in the set of answers to q2 for any datab...
SIGMOD
2004
ACM
14 years 6 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...