2043 search results - page 276 / 409 » The Limits of Querying Ontologies |
SIGMOD
1996
ACM
14 years 2 months ago
1996
ACM
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
BMCBI
2006
13 years 10 months ago
2006
Background: Many commonly used genome browsers display sequence annotations and related attributes as horizontal data tracks that can be toggled on and off according to user prefe...
ECCC
2010
13 years 9 months ago
2010
We study the problem of testing isomorphism (equivalence up to relabelling of the variables) of two Boolean functions f, g : {0, 1}n → {0, 1}. Our main focus is on the most stud...
MDM
2010
Springer
13 years 8 months ago
2010
Springer
—We present an optimal distributed algorithm to adapt the placement of a single operator in high communication cost networks, such as a wireless sensor network. Our parameterfree...
RR
2009
Springer
14 years 5 months ago
2009
Springer
Abstract. It is well-knwon that crisp RDF is not suitable to represent vague information. Fuzzy RDF variants are emerging to overcome to this limitations. In this work we provide, ...