Semantic representation and querying of caBIG data services

E. Patrick Shironoshita, Ray M. Bradley, Yves R. Jean-Mary, Thomas J. Taylor, Michael T. Ryan, Mansur R. Kabuka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


A computational grid infrastructure for biomedical research, called caGrid, is under development by the National Cancer Institute (NCI) as part of the cancer Biomedical Informatics Grid (caBIG) Initiative. In this paper we present a model that enables users to query an integrated view of caBIG data services at a conceptual semantic level. The model is based on semCDI, a formulation to generate an ontology view of caBIG semantics and pose queries against this view using the SPARQL query language complemented with Horn rules. We present here a mechanism to process these queries algebraically using our semQA query algebra extension for SPARQL, in order to create sub-expressions for each data service. We then show how resulting graphs from these sub-expressions are then merged using Horn rules.

Original languageEnglish (US)
Title of host publicationData Integration in the Life Sciences - 5th International Workshop, DILS 2008, Proceedings
Number of pages8
StatePublished - Aug 4 2008
Event5th International Workshop on Data Integration in the Life Sciences, DILS 2008 - Evry, France
Duration: Jun 25 2008Jun 27 2008

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5109 LNBI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other5th International Workshop on Data Integration in the Life Sciences, DILS 2008

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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