*ANNOUNCEMENT* (01)
We are pleased to announce that Dr. Leo Obrst, co-convener of
Ontolog, and a principal scientist at MITRE, will be presenting
to the community. His talk is entitled: "*What is an ontology? -
A Briefing on the Range of Semantic Models*" (02)
*Conference call-in details*: (03)
Date: Thursday, Jan. 12, 2006
Start Time: 10:30am PST / 1:30pm EST / 18:30 UTC (World Time:
http://www.timeanddate.com/worldclock/fixedtime.html?month=1&day=12&year=2006&hour=10&min=30&sec=0&p1=224)
Session Duration: 2 Hours
Dial-in Number: +1-702-851-3330 (Las Vegas, Nevada, USA)
Participant Access Code: "686564#"
VNC shared-screen support available (04)
Topic: *What is an ontology? - A Briefing on the Range of
Semantic Models* (05)
*Abstract*: (06)
The Ontology Spectrum describes a range of semantic models of
increasing expressiveness and complexity: taxonomy, thesaurus,
conceptual model, and logical theory. (07)
This presentation initially describes the Ontology Spectrum and
important distinctions related to semantic models, e.g., the
distinction among term, concept, and real world referent; the
distinction among syntax, semantics, and pragmatics; the
distinction between intension and extension; and de facto
distinctions that the ISO 11179 standard makes (as do many
others): data objects, classification objects, terminology
objects, meaning objects, and the relationships among these. (08)
The individual semantic model types are then discussed: weak and
strong taxonomies, thesauri, and weak and strong ontologies
(conceptual model and logical theory, respectively). Each of
these are defined, exemplified, and discussed with respect to
when a more expressive model is needed. (09)
If time permits, semantic integration and interoperability are
discussed with respect to the models. (010)
Finally, a pointer to an expansion of the logical theory portion
of the Ontology Spectrum is given: the Logic Spectrum, which
describes the range of less to more expressive logics used for
ontology and knowledge representation. (011)
*About the Speakers*: (012)
*Dr. Leo Obrst* is a principal artificial intelligence scientist
at MITRE’s (http://www.mitre.org) Center for Innovative Computing
and Informatics, where he leads the Information Semantics group
(semantics, ontological engineering, knowledge representation and
management), and has been involved in projects on Semantic Web
rule/ontology interaction, context-based semantic
interoperability, ontology-based knowledge management, conceptual
information retrieval, metadata and thesaurus construction for
community knowledge sharing, intelligent agent technology, and
ontology-based modeling of complex decision-making, He was
recently Director of Ontological Engineering at VerticalNet.com,
a department he formed to create ontologies in the product and
service space to support Business-to-Business e-commerce. Leo's
PhD is in theoretical linguistics with a concentration in formal
semantics from the University of Texas-Austin. He has worked over
20 years in computational linguistics, knowledge representation,
and in the past nine years in ontological engineering. Leo is a
member of the Executive Committee of the National Center for
Ontological Research (NCOR, http://ncor.us/), and the chair of
the NCOR Technical Committee. He was a member of the W3C Web
Ontology Working Group (http://www.w3.org/2001/sw/WebOnt/) that
developed the Web Ontology Language OWL. He is a member of the
IEEE Standard Upper Ontology working group
(http://suo.ieee.org/), the Semantic Web Services Initiative
(http://www.swsi.org/), the Ontolog community
(http://ontolog.cim3.net, which he co-founded and which focuses
on the promotion of ontological engineering and semantic
technologies), and the W3C Rule Interoperability group. He is a
member of AAAI, ACL, LSA, and ACM. His research interests include
semantic interoperability/integration, formalization of context
for ontology mapping and merging, and formal upper ontologies,
Semantic Web rules, and the application of formal ontology and
formal semantics to ontological engineering. (013)
*Refer to details on the session wiki page at*:
http://ontolog.cim3.net/cgi-bin/wiki.pl?ConferenceCall_2006_01_12 (014)
This will be a virtual session over an augmented conference call.
The session is expected to start with 45 min. ~ 1 Hour
presentation followed by an extended discussion between the
participants and the speaker. The entire session will be recorded
and made available as open content under the prevailing Ontolog
IPR policy (see:
http://ontolog.cim3.net/cgi-bin/wiki.pl?WikiHomePage#nid32). (015)
I look forward to having you at this open session. Please pass
the announcement along to those who might be interested to join
us too. All are welcomed. *RSVP* by by emailing me at
<peter.yim@xxxxxxxx> offline. (016)
Regards. =ppy (017)
Peter P. Yim
Co-convener, Ontolog
--
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
Subscribe/Unsubscribe/Config:
http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/
To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx (018)
|