title: An Ontology Based Method to Solve Query Identifier Heterogeneity in Post-Genomic Clinical Trials creator: Anguita Sanchez, Alberto creator: Martín Martín, Luis creator: Crespo del Arco, Jose creator: Tsiknakis, Manolis subject: Computer Science description: The increasing amount of information available for biomedical research has led to issues related to knowledge discovery in large collections of data. Moreover, Information Retrieval techniques must consider heterogeneities present in databases, initially belonging to different domains—e.g. clinical and genetic data. One of the goals, among others, of the ACGT European is to provide seamless and homogeneous access to integrated databases. In this work, we describe an approach to overcome heterogeneities in identifiers inside queries. We present an ontology classifying the most common identifier semantic heterogeneities, and a service that makes use of it to cope with the problem using the described approach. Finally, we illustrate the solution by analysing a set of real queries. publisher: Facultad de Informática (UPM) rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/ date: 2008-05 type: info:eu-repo/semantics/article type: Article source: Studies in Health Technology and Informatics, ISSN 0926-9630, 2008-05, Vol. 136 type: PeerReviewed format: application/pdf language: spa relation: http://www.iospress.nl/loadtop/load.php?isbn=shti rights: info:eu-repo/semantics/openAccess identifier: https://oa.upm.es/2812/