Sorry Peter. I would love to hear Jack and Patrick's talk, but I will be at a
vendor conference in
Las Vegas. (01)
Thanks again for including me on the panel yesterday. It was fun! (02)
--- "Peter P. Yim" <peter.yim@xxxxxxxx> wrote: (04)
> We are pleased to announce that Mr. Jack Park (SRI) and Mr.
> Patrick Durusau (NCITS/V1) will be presenting to the community on
> Thursday, April 27, 2006. Their talk is entitled: "Avoiding
> Hobson's Choice In Choosing An Ontology"
> This is the 3rd event in our series of talks and discussions the
> revolve around the topic: "Ontologizing the Ontolog Body of
> Knowledge" during which this community will explore the "what's"
> and "how's" to the development of a semantically interoperable
> application, using the improved access to the content of Ontolog
> as a case in point.
> *Conference call-in details*:
> Date: Thursday, Apr. 27, 2006
> Start Time: 10:30 AM PDT / 1:30 PM EDT / 17:30 UTC
> (World Time:
> Session Duration: ~2 Hours
> Dial-in Number: +1-641-696-6600 (Iowa)
> Participant Access Code: "686564#"
> VNC shared-screen support available
> Topic: *Avoiding Hobson's Choice In Choosing An Ontology*
> *Abstract*: (by Jack Park & Patrick Durusau)
> Most users of ontologies have either participated in the
> development of the ontology they use and/or have used it for such
> a period of time that they have taken ownership of it. Like a
> hand that grows to fit a tool, users grow comfortable with
> "their" ontology and can use another only with difficulty and
> possibly high error rates.
> When agencies discuss sharing information, the tendency is to
> offer other participants a "Hobson's Choice" of ontologies. "Of
> course we will use ontology X." which just happens to be the
> ontology of the speaker. Others make similar offers. Much
> discussion follows. But not very often effective integration of
> In all fairness to the imagined participants in such a
> discussion, unfamiliar ontologies can lead to errors and/or
> misunderstandings that may actually impede the interchange,
> pardon, the accurate interchange information. Super-ontologies
> don't help much when they lack the granularity needed for real
> tasks and simply put off the day of reckoning when actual data
> has to move between agencies.
> The Topic Maps Reference Model is a paradigm for constructing a
> mapping of ontologies that enables users to use "their"
> ontologies while integrating information that may have originated
> in ontologies that are completely foreign or even unknown to the
> user. Such mappings can support full auditing of the process of
> integrating information to enable users to develop a high degree
> of confidence in the mapping.
> Topic maps rely upon the fact that every part of an ontology is
> in fact representing a subject. And the subject that is being
> represented is known from the properties of those
> representatives. Such representatives are called subject proxies
> in the Topic Maps Reference Model. Those properties are used as
> the basis for determining when two or more subject proxies
> represent the same subject. Information from two or more
> representatives of the same subject can be merged together,
> providing users with information about a subject that may not
> have been known in their ontology.
> Park and Durusau explore the philosophical, theoretical and
> practical steps needed to avoid a Hobson's Choice in ontology
> discussions and to use the Topic Maps Reference Model to
> effectively integrate information with a high degree of
> confidence in the results. All while enabling users to use the
> ontology that is most familiar and comfortable for them.
> *About the Speakers*:
> *Mr. Jack Park* is a research scientist in the AI Laboratory at
> SRI, International in Menlo Park. He works with Adam Cheyer's
> integration team on the DARPA-funded CALO project, where he
> created the prototype from which the team evolved the IRIS
> desktop knowledge workstation. During employment with
> VerticalNet, Park served on the XTM Authoring Committee which
> created the XTM topic maps specification, now a part of the ISO
> 13250 Topic Maps standard. In a former life, while serving as the
> president of the American Wind Energy Association, Park was
> constructing microprocessor-based weather stations used for
> siting wind energy farms and in agricultural applications. The
> massive amounts of data being collected by those stations led to
> investigations into AI applications in data mining and data
> organization. Ontologies and inference engines naturally
> followed. Park has crafted Java-based inference engines for a
> large banking enterprise, a clinical informatics enterprise, and
> participated in the construction of the VerticalNet B2B ontology
> editor. Park authored _The Wind Power Book_ in 1981, and
> co-authored and edited _XML Topic Maps: Creating and Using Topic
> Maps for the Web_, published in 2002. He has taught university
> courses in renewable energy resources in the U.S., and lectured
> on those subjects in the U.S., parts of Europe and Africa. He
> spends most of his time now evolving applications for subject
> maps related to the Douglas Engelbart call for continuous
> improvement of human capabilities.
> *Mr. Patrick Durusau* is the Chair of V1, the US Technical
> Advisory Group (TAG) to ISO/IEC JTC 1/SC 34, the committee
> responsible for the development of the Topic Maps family of
> standards. He is a co-editor of ISO 13250-5, the Topic Maps
> Reference Model. . . . In the Fall of 2006 he will be teaching
> what is thought to be the first graduate course devoted
> exclusively to topic maps at the School of Library and
> Information Science at the University of Illinois at
> Urbana-Champaign. . . . He is deeply interested in the
> integration diverse information systems (including ontologies)
> while preserving the ability of users to identify the subjects of
> their conversations in ways that work best for them.
> *Refer to details on the session wiki page at*:
> 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:
> As usual, this Ontolog event is open to all. I look forward to
> having you at this session. Please pass the announcement along to
> those who might be interested to join us too.
> *RSVP* by by emailing me at <peter.yim@xxxxxxxx> offline.
> Regards. =ppy
> Peter P. Yim
> Co-convener, Ontolog
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