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» On a Declarative Semantics for Web Queries
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WEBDB
2004
Springer
202views Database» more  WEBDB 2004»
14 years 1 months ago
Mining Approximate Functional Dependencies and Concept Similarities to Answer Imprecise Queries
Current approaches for answering queries with imprecise constraints require users to provide distance metrics and importance measures for attributes of interest. In this paper we ...
Ullas Nambiar, Subbarao Kambhampati
SEMWEB
2005
Springer
14 years 1 months ago
Oyster - Sharing and Re-using Ontologies in a Peer-to-Peer Community
In this poster, we present Oyster, a Peer-to-Peer system for exchanging ontology metadata among communities in the Semantic Web. Oyster exploits semantic web techniques in data re...
Raúl Palma, Peter Haase
ACMICEC
2006
ACM
120views ECommerce» more  ACMICEC 2006»
13 years 11 months ago
A semantic-based fully visual application for matchmaking and query refinement in B2C e-marketplaces
This paper presents a visual application in the framework of semantic-enabled e-marketplaces aimed at fully exploiting semantics of supply/demand descriptions in B2C and C2C e-mar...
Simona Colucci, Tommaso Di Noia, Eugenio Di Sciasc...
ER
2000
Springer
122views Database» more  ER 2000»
13 years 11 months ago
Managing RDF Metadata for Community Webs
The need for descriptive information, i.e., metadata, about Web resources has been recognized in several application contexts (e.g., digital libraries, portals). The Resource Descr...
Sofia Alexaki, Vassilis Christophides, Gregory Kar...
ICLP
2007
Springer
14 years 2 months ago
DLVHEX-SPARQL: A SPARQL Compliant Query Engine Based on DLVHEX
This paper describes the dlvhex SPARQL plugin, a query processor for the upcoming Semantic Web query language standard by W3C. We report on the implementation of this languages usi...
Axel Polleres, Roman Schindlauer