151 search results - page 14 / 31 » On the Containment Problem for Queries in Conjunctive Form w... |
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
An important application of semantic web technology is recognizing human-defined concepts in text. Query transformation is a strategy often used in search engines to derive querie...
IANDC
2006
13 years 7 months ago
2006
This paper studies the complexity of learning classes of expressions in propositional logic from equivalence queries and membership queries. In particular, we focus on bounding th...
ICDT
2011
ACM
12 years 11 months ago
2011
ACM
The goal of Knowledge Compilation is to represent a Boolean expression in a format in which it can answer a range of online-queries in PTIME. The online-query of main interest to ...
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
We address the problem of query rewriting for TSL, a language for querying semistructured data. We develop and present an algorithm that, given a semistructured query q and a set ...
VLDB
1997
ACM
13 years 11 months ago
1997
ACM
Efficient user-adaptable similarity search more and more increases in its importance for multimedia and spatial database systems. As a general similarity model for multi-dimension...