Ontologies are heavily used in life sciences so that there is increasing value to match different ontologies in order to determine related conceptual categories. We propose a simple yet powerful methodology for instance-based ontology matching which utilizes the associations between molecular-biological objects and ontologies. The approach can build on many existing ontology associations for in...

A key problem in ontology alignment is that different ontological features (e.g., lexical, structural or semantic) vary widely in their importance for different ontology comparisons. In this paper, we present a set of principled techniques that exploit user feedback to customize the alignment process for a given pair of ontologies. Specifically, we propose an iterative supervised-learning appro...

Biomedical systems have been using ontology matching as a primary technique for heterogeneity resolution. However, the natural intricacy and vastness of biomedical data have compelled biomedical ontologies to become large-scale and complex; consequently, biomedical ontology matching has become a computationally intensive task. Our parallel heterogeneity resolution system, i.e., SPHeRe, is built...

A recent approach to the problem of ontology matching has been to convert the problem of ontology matching to information retrieval. We explore the utility of this approach in matching model elements of real UML, ER, EMF and XML-Schema models, where the semantics of the models are less precisely defined. We validate this approach with domain experts for industry models drawn from very different...

We study the enumeration of answers to ontology-mediated queries when ontology is formulated in a description logic that supports functional roles and query CQ. In particular, we show possible with linear preprocessing constant delay certain extension CQ (pertaining roles) acyclic free-connex acyclic. This holds both for complete partial answers. provide matching lower bounds case where self-jo...