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CORR
2007
Springer
77views Education» more  CORR 2007»
13 years 7 months ago
Query Evaluation and Optimization in the Semantic Web
We address the problem of answering Web ontology queries efficiently. An ontology is formalized as a Deductive Ontology Base (DOB), a deductive database that comprises the ontology...
Edna Ruckhaus, Eduardo Ruiz, Maria-Esther Vidal
ACL
2009
13 years 5 months ago
Semantic Tagging of Web Search Queries
We present a novel approach to parse web search queries for the purpose of automatic tagging of the queries. We will define a set of probabilistic context-free rules, which genera...
Mehdi Manshadi, Xiao Li
WIDM
2003
ACM
14 years 25 days ago
XWebSOGO: an ontology language to describe and query web sources
Ontologies play an important role in the Semantic Web. Currently, several Web ontology languages have been proposed and there has been a substantial effort towards the formalizat...
Edna Ruckhaus, Maria-Esther Vidal
ECAI
2004
Springer
13 years 11 months ago
OntoRefiner, a user query refinement interface usable for Semantic Web Portals
We present a user interface, the OntoRefiner1 system, for helping the user to navigate numerous retrieved documents after a search querying a semantic portal which integrates a ver...
Brigitte Safar, Hassen Kefi, Chantal Reynaud
PSSS
2003
13 years 9 months ago
DLDB: Extending Relational Databases to Support Semantic Web Queries
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
Zhengxiang Pan, Jeff Heflin