110 search results - page 2 / 22 » Query evaluation using overlapping views: completeness and e... |
CVPR
2005
IEEE
14 years 6 months ago
2005
IEEE
When viewed from a system of multiple cameras with nonoverlapping fields of view, the appearance of an object in one camera view is usually very different from its appearance in a...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
Views over probabilistic data contain correlations between tuples, and the current approach is to capture these correlations using explicit lineage. In this paper we propose an al...
SIGMOD
2001
ACM
14 years 4 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
SIGMOD
2008
ACM
13 years 4 months ago
2008
ACM
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
ICDE
2006
IEEE
14 years 6 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...