Interface 2003

Using an Ontology as Generalized Metadata Schema for Access to Distributed Heterogeneous Data Sources
Edward Hovy, (Information Science Institute University of Southern California),


This presentation describes the Energy Data Collection (EDC) project. We merge a large general-purpose ontology and a more focused domain model and embedded the result into a system for supporting user access to over 50,000 tables of information about gasoline price and production, obtained from the Energy Information Administration, the Bureau of Labor Statistics, the Census Bureau and the California Energy Commission. The source data was provided in a variety of formats, including Microsoft Access spreadsheets, pdf and html pages, and raw text files. An inportant focus of the work was using the merged ontology/domain model as a generalized metadata schema.

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