2859 search results - page 82 / 572 » Querying Complex Structured Databases |
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
Many existing indexes on text work at the document granularity and are not effective in answering the class of queries where the desired answer is only a term or a phrase. In this...
ITCC
2002
IEEE
14 years 1 months ago
2002
IEEE
Software tools used to administer databases are vendor specific, proprietary, and require extensive prior database knowledge on the part of the database professional. We present d...
VLDB
1998
ACM
14 years 8 days ago
1998
ACM
Approximate predicates can be used to reduce the number of comparisons made by expensive, complex predicates. For example, to check if a point is within a region (expensive predic...
PODS
2010
ACM
14 years 1 months ago
2010
ACM
We investigate a higher-order query language that embeds operators of the positive relational algebra within the simply-typed λ-calculus. Our language allows one to succinctly de...
PODS
2008
ACM
14 years 8 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...