Ontologies and Knowledge Organization Systems (KOS):
This is an introduction to ontologies and Knowledge Organization Systems (KOS) from an information science perspective. KOS include ontologies, taxonomies, classifications, thesauri, subject heading lists, dictionaries, glossaries, ... The course focuses on content, not on formal representation. How ontologies can represent meaningful structure and help users create meaning or making sense.

Speaker: Prof. Dagobert Soergel
Lecture title	Date	Slides
Introductory example. From a raw list of terms to a structured faceted classification	6th Oct 2008 14:00 - 16:00
The many functions of knowledge organization systems	7th Oct 2008 10:00 - 12:00
Semantic factoring (componential analysis) and facets. Education example. Facet exercise: Yahoo health. The nature of facets.	8th Oct 2008 10:00 - 12:00
Reasoning on concept relationships: Hierarchy from facet combination. Meaningful structure: The Alcohol and Other Drug Thesaurus example Design of a system for computer-assisted derivation of description logic formulas for the Library of Congress Classification. Walk through a mock up. Computer-assisted refinement of relationships in a KOS. Walk through a mock up.	9th Oct 2008 14:00 - 18:00

Recommended readings
Knowledge Organization System Development (on request: dsoergel@umd.edu)
Digital Libraries and Knowledge Organization
HCI Information Organization