Semantic Metrics

Hu, Dr Bo and Kalfoglou, Dr Yannis and Dupplaw, Dr David and Alani, Dr Harith and Lewis, Prof Paul and Shadbolt, Prof Nigel (2006) Semantic Metrics. In Proceedings 15 International Conference on Knowledge Engineering and Knowledge Management (EKAW06), Podebrady, Czech Rep..

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In the context of the Semantic Web, many ontology-related operations, e.g. ontology ranking, segmentation, alignment, articulation, reuse, evaluation, can be boiled down to one fundamental operation: computing the similarity and/or dissimilarity among ontological entities, and in some cases among ontologies themselves. In this paper, we review standard metrics for computing distance measures and we propose a series of semantic metrics. We give a formal account of semantic metrics drawn from a variety of research disciplines, and enrich them with semantics based on standard Description Logic constructs. We argue that concept-based metrics can be aggregated to produce numeric distances at ontology-level and we speculate on the usability of our ideas through potential areas.

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