Dagobert Soergel, College of Information Studies, Univ. of Maryland.
This tutorial is intended for people who have a basic familiarity with the function and structure ofthesauri and ontologies. It will introduce criteria for the design and evaluation of thesauri andontologies and then deal with methods and tools for their development: Locating sources;collecting concepts, terms. and relationships to reuse existing knowledge; developing andrefining thesaurus/ontology structure; software and database structure for the development andmaintenance of thesauri and ontologies; standards such as RDF and TopicMaps; collaborativedevelopment of thesauri and ontologies; developing crosswalks / mappings betweenthesauri/ontologies. In summing up, the tutorial will address the question of the amount ofresources needed to develop and maintain a thesaurus or ontology.
The overall process of thesaurus construction. Sources of concepts, terms, relationships, definitions. Methods of data collection. Merging data from many sources
Facet analysis 13: Education (starting with classes from DDC. More facet examples: Yahoo Education, job titles.
Hands-on facet exercise (in pairs). Principles for meaningful arrangement. Rules for selection of concepts as descriptors. Rules for selection of terms.
Interoperability of thesauri/ontologies. Crosswalks. The structure of a thesaurus/ontology database. The many forms of Knowledge Organization Systems (KOS) and theirstandards. Thesaurus software and its evaluation.
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