525 search results - page 23 / 105 » On Query Algebras for Probabilistic Databases |
EDBT
2011
ACM
14 years 3 months ago
2011
ACM
This demonstration paper presents a probabilistic XML data merging tool, that represents the outcome of semi-structured document integration as a probabilistic tree. The system is...
PVLDB
2010
14 years 10 months ago
2010
Managing, searching and mining uncertain data has achieved much attention in the database community recently due to new sensor technologies and new ways of collecting data. There ...
SAT
2004
Springer
15 years 4 months ago
2004
Springer
Kolaitis and Vardi pointed out that constraint satisfaction and conjunctive query containment are essentially the same problem. We study the Boolean conjunctive queries under a mor...
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WWW
2002
ACM
16 years 7 days ago
2002
ACM
Query expansion has long been suggested as an effective way to resolve the short query and word mismatching problems. A number of query expansion methods have been proposed in tra...
BNCOD
2004
15 years 29 days ago
2004
When storing data in heterogeneous databases, one of the top-down design issues concerns the usage of multiple query languages. A common language enables querying of database schem...