AAAI
2000
13 years 5 months ago
2000
A serious shortcoming of many Description Logic based knowledge representation systems is the inadequacy of their query languages. In this paper we present a novel technique that ...
HICSS
2005
IEEE
13 years 10 months ago
2005
IEEE
It is demonstrated how to provide a peer-to-peer system that supports an expressive query language while maintaining efficient distribution over a wide-area network. The key is to...
PODS
2008
ACM
14 years 4 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...
WWW
2007
ACM
14 years 5 months ago
2007
ACM
Current keyword-oriented search engines for the World Wide Web do not allow specifying the semantics of queries. We address this limitation with NAGA1 , a new semantic search engi...