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Reference > Knowledge Management > Knowledge Representation > Ontologies

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Languages and Standards (7)
Published Ontologies (12)
Software and Tools (17)
Thesauri (32)
Tutorials (5)

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Adaptive Path - Metadata for the Masses - http://www.adaptivepath.com/publications/essays/archives/000361.php
Discussion of the promise and problems of classification systems created by nonprofessionals.

Buffalo Ontology Site - http://ontology.buffalo.edu/
Comprehensive collection of links maintained by Barry Smith, on the philosophy faculty at State University of New York at Buffalo.

European Centre for Ontological Research (ECOR) - http://www.ecor.uni-saarland.de
ECOR represents a new approach in applying ontology to a variety of problems in information science and related areas, by coordinating institutions, organisations and companies working in the field.

Guided Tour of Ontology - http://www.jfsowa.com/ontology/guided.htm
Very large site comprising six papers by mathematician John F. Sowa of Harvard and MIT, each with summary introductory paragraph followed by numbered topic headings hyperlinked to detailed articles. Exhaustive summary bibliography.

http://ontolog.cim3.net/ - http://ontolog.cim3.net/
Ontolog is an open, international, virtual community devoted to advancing the field of ontological engineering and semantic technologies, and advocating their adoption into mainstream applications and international standards.

http://www.co-ode.org/ - http://www.co-ode.org/
Collaborative Open Ontology Development Environment is a project led by the Medical Informatics Group at the University of Manchester.

KBS/Ontology Projects and Groups - http://www.cs.utexas.edu/users/mfkb/related.html
Hundreds of annotated, alphabetically sorted links to ongoing work by members of the Knowledge Systems Research Group, part of the Artificial Intelligence Lab at the University of Texas at Austin.

LSDIS Projects - http://lsdis.cs.uga.edu/projects/
Large Scale Distributed Information Systems lab at the University of Georgia lists ongoing projects such as Sensor Map, BioInformatics for Glycan Expression, and a number of semantic discovery projects.

On-To-Knowledge - http://www.ontoknowledge.org/
Three-year European collaboration discussing knowledge management methods based on ontology sharing and reuse, with successive papers and a book on the semantic web published in 2002.

Ontologies Come of Age - http://www.ksl.stanford.edu/people/dlm/papers/ontologies-come-of-age-mit-press-%28with-citation%29.htm
Paper by Deborah L. McGuinness discussing ontologies and requirements for their effective use on the web. [2002]

Ontologies For Education - http://o4e.iiscs.wssu.edu/xwiki/bin/view/Blog/About
A topic-map driven portal focused on application of ontologies and similar technologies to educational domains.

Ontology Engineering Background - http://www.aifb.uni-karlsruhe.de/WBS/cte/ontologyengineering/
Overview of methodologies, papers and people.

Ontology Engineering: a survey and a return on experience - http://www.inria.fr/rrrt/rr-4396.html
Research report by INRIA, presenting the state of the art of engineering techniques and a project description. (downloadable PDF)

Ontology is Overrated: Categories, Links, and Tags - http://shirky.com/writings/ontology_overrated.html
Clay Shirky explores online categorization, contrasting ontologies with folksonomies.

Ontology Online - http://ontologyonline.org
Semantic web experiment and ontology mashup maintained by David Decraene.

OWL Web Ontology Language Reference - http://www.w3.org/TR/owl-ref/
Detailed description of the OWL W3C specification.

Principles of ontology - http://www-ksl.stanford.edu/onto-std/mailarchive/0136.html
Mailing list archive. Some basic definitions by John Sowa.

What is an Ontology? - http://www-ksl.stanford.edu/kst/what-is-an-ontology.html
Short and long answers from Tom Gruber of Knowledge Systems Lab at Stanford University.

You're It - http://tagsonomy.com/
A weblog about social tagging.

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