3368 search results - page 558 / 674 » The Complexity of Query Reliability |
ICDE
2006
IEEE
14 years 11 months ago
2006
IEEE
We present MiniCount, the first efficient sound and complete algorithm for finding maximally contained rewritings of conjunctive queries with count, using conjunctive views with c...
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Scientific database federations are geographically distributed and network bound. Thus, they could benefit from proxy caching. However, existing caching techniques are not suitabl...
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...
ICDE
2002
IEEE
14 years 11 months ago
2002
IEEE
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...
ICDE
1998
IEEE
14 years 11 months ago
1998
IEEE
We have a large database consisting of sales transactions. We investigate the problem of online mining of association rules in this large database. We show how to preprocess the d...