%0 Journal Article %T Ontology-Driven Information Retrieval for Healthcare Information System : A Case Study %A Aidarus M. Ibrahim %A Hussein A. Hashi %A Abdullalem A. Mohamed %J International Journal of Network Security & Its Applications %D 2013 %I Academy & Industry Research Collaboration Center (AIRCC) %X In health research, one of the major tasks is to retrieve, and analyze heterogeneous databases containingone single patient¡¯s information gathered from a large volume of data over a long period of time. Themain objective of this paper is to represent our ontology-based information retrieval approach forclinical Information System. We have performed a Case Study in the real life hospital settings. The resultsobtained illustrate the feasibility of the proposed approach which significantly improved the informationretrieval process on a large volume of data over a long period of time from August 2011 until January2012 %K Ontology %K Information Retrieval %K UTM Clinic %K Resource Description Framework(RDF) %U http://airccse.org/journal/nsa/0113nsa05.pdf