Matching unstructured vocabularies using a background ontology

  • Authors:
  • Zharko Aleksovski;Michel Klein;Warner ten Kate;Frank van Harmelen

  • Affiliations:
  • Philips Research, Eindhoven;Vrije Universiteit, Amsterdam;Philips Research, Eindhoven;Vrije Universiteit, Amsterdam

  • Venue:
  • EKAW'06 Proceedings of the 15th international conference on Managing Knowledge in a World of Networks
  • Year:
  • 2006

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Abstract

Existing ontology matching algorithms use a combination of lexical and structural correspondence between source and target ontologies. We present a realistic case-study where both types of overlap are low: matching two unstructured lists of vocabulary used to describe patients at Intensive Care Units in two different hospitals. We show that indeed existing matchers fail on our data. We then discuss the use of background knowledge in ontology matching problems. In particular, we discuss the case where the source and the target ontology are of poor semantics, such as flat lists, and where the background knowledge is of rich semantics, providing extensive descriptions of the properties of the concepts involved. We evaluate our results against a Gold Standard set of matches that we obtained from human experts.