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» The Limits of Querying Ontologies
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CORR
2010
Springer
157views Education» more  CORR 2010»
13 years 8 months ago
Efficient Clustering with Limited Distance Information
Given a point set S and an unknown metric d on S, we study the problem of efficiently partitioning S into k clusters while querying few distances between the points. In our model ...
Konstantin Voevodski, Maria-Florina Balcan, Heiko ...
BMCBI
2007
217views more  BMCBI 2007»
13 years 8 months ago
OntologyWidget - a reusable, embeddable widget for easily locating ontology terms
Background: Biomedical ontologies are being widely used to annotate biological data in a computer-accessible, consistent and well-defined manner. However, due to their size and co...
Catherine Beauheim, Farrell Wymore, Michael Nitzbe...
TSC
2010
182views more  TSC 2010»
13 years 3 months ago
A Query Rewriting Approach for Web Service Composition
Data-Providing (DP) services allow query-like access to organizations' data via web services. The invocation of a DP service results in the execution of a query over data sour...
Mahmoud Barhamgi, Djamal Benslimane, Brahim Medjah...
ADBIS
2004
Springer
224views Database» more  ADBIS 2004»
14 years 2 months ago
Using Ontologies for Database Query Reformulation
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
Chokri Ben Necib, Johann Christoph Freytag
WWW
2006
ACM
14 years 9 months ago
Oyster: sharing and re-using ontologies in a peer-to-peer community
Abstract. This paper presents Oyster, a Peer-to-Peer system for exchanging ontology metadata among communities in the Semantic Web. We describe how Oyster assists researchers in re...
Asunción Gómez-Pérez, Peter H...