This paper introduces the notion of a knowledge signature: a concise, ontologically-driven representation of the semantic characteristics of data. Knowledge signatures provide programmatic access to data semantics while allowing comparisons to be made across different types of data such as text, images or video, enabling efficient, automated information integration. Through observation, which determines the degree of association between data and ontological concepts, and refinement, which uses the axioms and structure of the domain ontology to place the signature more accurately within the context of the domain, knowledge signatures can be created. A comparison of such signatures for two different pieces of data results in a measure of their semantic separation. This paper discusses the definition of knowledge signatures along with the design and prototype implementation of a knowledge signature generator.
Revised: January 17, 2011 |
Published: October 25, 2003
Citation
Thomson J., A.J. Cowell, P.R. Paulson, R.S. Butner, and M.A. Whiting. 2003.Knowledge Signatures for Information Integration. In Ontologies, DataBases, and Applications of Semantics for Large Scale Information Systems (ODBASE) 2004: Lecture Notes in Computer Science, 3292, 26-27. Berlin:Springer.PNNL-SA-42165.doi:10.1007/978-3-540-30470-8_12