Honestly, we were a little pressed for time toward the end of the
session yesterday. There were a few more slides that Leo could
have covered, and I'm sure some of the members of the audience
didn't get their chance to ask questions. I have, since, received
requests for a follow-up session. (01)
*Good New!* - I have got this worked out, and Dr. Obrst has
graciously agreed to set aside 1.5 hours next Thursday
(2006.01.19) as a Part-2 session of this talk. The session will
start at the usual time. Call details as follows: (02)
Date: Thursday, Jan. 19, 2006
Start Time: 10:30am PST / 1:30pm EST / 18:30 UTC (World Time:
http://www.timeanddate.com/worldclock/fixedtime.html?month=1&day=19&year=2006&hour=10&min=30&sec=0&p1=224)
Session Duration: 1.5 Hours
Dial-in Number: +1-702-851-3330 (Las Vegas, Nevada, USA)
Participant Access Code: "686564#"
VNC shared-screen support available (03)
Please refer to other session details on our wiki session page
(same page as before) at:
http://ontolog.cim3.net/cgi-bin/wiki.pl?ConferenceCall_2006_01_12
[note especially details pertaining to the Part-2 session] (04)
I suggest we'll just jump straight into the talk without much
introductions at the front for this upcoming session. That would
give us more quality time for Dr. Obrst's material, and allow us
more time for Q&A's and discussion after he finishes on the
prepared content. (05)
RSVP to the undersigned at <peter.yim@xxxxxxxx> offline, so that
I can arrange enough conferencing resources for the session. I
shall look forward to having you at this Part-2 session. (06)
Regards. =ppy (07)
P.S. If you missed the first part of the talk, you may consider
catching up by going over the audio archive of the Part-1 session
which is now available (refer to details in my previous message.)
=ppy
-- (08)
Peter P. Yim wrote Fri, 13 Jan 2006 00:44:34 -0800:
> We had a huge crowd and a most educational session on Jan. 12, 2006 with
> Dr. Leo Obrst, principal artificial intelligence scientist at Mitre and
> co-convener of Ontolog, who presented to our community on: "What is an
> ontology? - A Briefing on the Range of Semantic Models".
>
> With Dr. Obrst's clear explanation and the set of meticulously prepared
> slides, I'm sure a lot of us can now discern between weak and strong
> semantics. We are in a position now to better understand the differences
> between taxonomies, thesauri, weak ontologies (conceptual models) and
> strong ontologies (logical theories), as well as when and why would we
> need them. As discussed during the session, this work (slides and audio
> recording of the briefing) will provide our community with the shared
> understanding of what these notions entail, and something we can always
> refer back to.
>
> Thank you very much, Leo, for sharing with us your work and insight.
> And, as always, appreciations to all who came, participated and helped
> contribute to yet another great Ontolog session.
>
> The digitized (mp3) audio recording of the entire session has
> now been posted. That will be archived in our knowledge
> repository for reference and download by anyone interested. See
> details at:
> http://ontolog.cim3.net/cgi-bin/wiki.pl?ConferenceCall_2006_01_12#nidITC
> Dr. Obrst's input today adds true value to this collective
> knowledge and intelligence that our community is building.
>
>
> Thanks & regards. =ppy (09)
> P.S. Our next couple of invited speaker events have already been lined up:
>
> Next month, on Thursday, Feb. 2, 2006, world renowned ontologist, Dr.
> Nicola Guarino from the Laboratory for Applied Ontology in Italy, will
> be giving us a talk focused around DOLCE - a Descriptive Ontology for
> Linguistic and Cognitive Engineering - one of the leading Upper
> Ontologies available.
>
> The following month, on Thursday, March 2, 2006, Professor Dr. Asuman
> Dogac from the Middle East Technical University (METU) in Turkey will be
> presenting her work to the community in a talk entitled: "Exploiting
> ebXML Registry Semantics in the eHealth Domain."
>
> Mark your calendars so that you won't missed these great upcoming
> events. =ppy (010)
Peter P. Yim wrote Mon, 09 Jan 2006 14:52:45 -0800:
> *REMINDER*
>
> Happy New Year, everyone!
>
> This long anticipated session on "What is an ontology?" is
coming up in a few days. Whether you are just trying to find out
for the first time, or if you are a seasoned software
professional, system designer, librarian, knowledge engineer,
taxonomist or ontologist, there are good reasons why you
shouldn't miss the session!
>
> RSVP (if you haven't already) ... we're looking forward to
having you at the session.
>
> Regards. =ppy
> -- (011)
> Peter P. Yim wrote Mon, 19 Dec 2005 21:47:38 -0800:
>> *ANNOUNCEMENT*
>>
>> 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*"
>>
>>
>> *Conference call-in details*:
>>
>> 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
>>
>>
>> Topic: *What is an ontology? - A Briefing on the Range of
Semantic Models*
>>
>>
>> *Abstract*:
>>
>> The Ontology Spectrum describes a range of semantic models of
increasing expressiveness and complexity: taxonomy, thesaurus,
conceptual model, and logical theory.
>>
>> 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.
>>
>> 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.
>>
>> If time permits, semantic integration and interoperability
are discussed with respect to the models.
>>
>> 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.
>>
>>
>> *About the Speakers*:
>>
>> *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.
>>
>> *Refer to details on the session wiki page at*:
>> http://ontolog.cim3.net/cgi-bin/wiki.pl?ConferenceCall_2006_01_12
>>
>> 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).
>>
>> 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.
>>
>>
>> Regards. =ppy
>>
>> Peter P. Yim
>> Co-convener, Ontolog (012)
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