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SEMWEB
2005
Springer
15 years 12 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
PPDP
2004
Springer
15 years 12 months ago
A lazy narrowing calculus for declarative constraint programming
The new generic scheme CFLP(D) has been recently proposed in [24] as a logical and semantic framework for lazy constraint functional logic programming over a parametrically given ...
Francisco Javier López-Fraguas, Mario Rodr&...
PODS
2010
ACM
250views Database» more  PODS 2010»
15 years 11 months ago
From information to knowledge: harvesting entities and relationships from web sources
There are major trends to advance the functionality of search engines to a more expressive semantic level. This is enabled by the advent of knowledge-sharing communities such as W...
Gerhard Weikum, Martin Theobald
ACMICEC
2006
ACM
120views ECommerce» more  ACMICEC 2006»
15 years 10 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...
CIKM
2008
Springer
15 years 8 months ago
Aggregate queries over ontologies
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Ca...