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Joint SOCoP-OOR Event - a Spatial Ontology Presentation - Tue 2012_06_19

Presenter: TorstenHahmann

Title: A Reconciliation of Ontologies of Abstract Space: From Mereotopologies to Geometries

Session Co-chairs: Gary Berg-Cross (SOCoP) & MichaelGruninger (U of Toronto)

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Conference Call Details

  • Date: Tuesday, 19-Jun-2012
  • Start Time: 8:30am PDT / 11:30am EDT / 5:30pm CEST / 15:30 UTC
  • Expected Call Duration: ~1.5 hours
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  • Expecting:
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Abstract

Title: "A Reconciliation of Ontologies of Abstract Space: From Mereotopologies to Geometries"

Abstract: This work focuses on bridging the gap between very weak ontologies of abstract space (in particular those relying only on topological and mereological relations) and more traditional geometries.

As basis we developed a general mereotopology based on spatial containment and relative dimension that is dimension-independent, i.e., in which points, curves, areas, etc. can coexist. By successively adding additional primitive relations (boundary containment, betweenness, and convex hulls) and ontological assumptions we construct a hierarchies of spatial ontologies. We locate existing spatial ontologies ranging from mereotopologies to various geometries in these hierarchies, thereby establishing the relationships amongst them. As more and more ontologies of abstract space are included, we refine our understanding of their shared and differing ontological assumptions as well as their necessary primitive relations.

All theories are axiomatized in Common Logic, formally verified with the help of automated tools, and will be made available as part of COLORE. The hierarchies can be used as basis for the integration of diverse spatial ontologies from geography, engineering, architecture, and other fields.

Agenda

Presentation: "A Reconciliation of Ontologies of Abstract Space: From Mereotopologies to Geometries"

  • Session Format: this is a virtual session conducted over an augmented conference call
  • 1. Opening - co-chairs [5 min.] ... [ slides ]
  • 2. Invited Presentation - Torsten Hahmann [45~60 min.]
  • 3. Q & A and open discussion [All: ~20 min.] -- please refer to process above
  • 4. Wrap-up / Announcements - (co-chairs)

Proceedings

Please refer to the above

IM Chat Transcript captured during the session

see raw transcript here.

(for better clarity, the version below is a re-organized and lightly edited chat-transcript.)

Participants are welcome to make light edits to their own contributions as they see fit.

-- begin in-session chat-transcript --

[08:21] Peter P. Yim: Welcome to the

Joint SOCoP-OOR Event - a Spatial Ontology Presentation - Tue 2012_06_19

Topic: A Reconciliation of Ontologies of Abstract Space: From Mereotopologies to Geometries

Presented by: Torsten Hahmann

Session Co-chairs: Dr. GaryBergCross (SOCoP) & Professor Michael Grüninger (U of Toronto)

Session page: http://ontolog.cim3.net/cgi-bin/wiki.pl?OOR/ConferenceCall_2012_06_19

Mute control: *7 to un-mute ... *6 to mute

Can't find Skype Dial pad? ... it's under the "Call" dropdown menu as "Show Dial pad"

Proceedings:

[08:29] anonymous morphed into Tim Darr

[08:20] anonymous morphed into Torsten Hahmann

[08:21] anonymous morphed into Bart Gajderowicz

[08:22] Bart Gajderowicz: Hello Torsten and Ken

[08:35] Peter P. Yim: -- session started: 8:35am PDT --

[08:35] Peter P. Yim: == co-chairs introducing session

[08:38] TerryLongstreth1 morphed into Terry Longstreth

[08:39] anonymous morphed into Boyan Brodaric

[08:40] Peter P. Yim: == Torsten Hahmann presenting his talk ...

[08:57] Michael Grüninger: hi Torsten -- we cannot hear you

[08:57] Torsten Hahmann: I can still hear you

[08:57] Torsten Hahmann: trying to figure it out

[09:13] Terry Longstreth: Torsten's phone reminds me of my cubscout crystal radio

[08:58] anonymous morphed into Josh Lieberman

[09:01] Nancy Wiegand: (ref. slide 12) What's a hierarchy, in this sense?

[09:04] GaryBergCross: Nancy, he shows some hierarchies on later slide like slide 22..

[09:05] Michael Grüninger: @Nancy -- yes, this is not a class hierarchy, but rather a partially

ordered set of ontologies with the same set of primitive concepts and relations

[09:39] GaryBergCross: Nancy's earlier question on hierarchy might be clarified. You form

hierarchy by added restricting axioms and/or primitives.

[09:41] Michael Grüninger: Hierarchies arise from adding different sets of axioms to theories.

All theories in the same hierarchy have the same set of primitives.

[09:09] Todd Schneider: Michael, could you post the URL that Torsten just mentioned?

I'd very much like to see the definition of 'relative dimension'.

[09:14] Michael Grüninger: http://www.cs.toronto.edu/~torsten/qs/

[09:14] Todd Schneider: Michael, Thank you.

[09:19] Todd Schneider: Is there any representation of joining one or more spaces to form

something of larger dimension?

[09:29] Todd Schneider: Thank you Torsten. Have to go.

[09:34] DeborahMacPherson: Thanks for the presentation - need to go to a meeting.

Downloaded the slides to continue mulling over. Thanks

[09:41] anonymous morphed into Elizabeth Florescu

[09:46] Peter P. Yim: == now in the Q&A segment of the session

[09:49] Peter P. Yim: link to COLORE (COmmon Logic Ontology Repository) - http://colore.oor.net

[09:53] Peter P. Yim: great session!

[09:53] Peter P. Yim: -- session ended: 9:52am PDT --

-- end of in-session chat-transcript --

  • Further Question & Remarks - please post them to the [ socop-forum ] listserv
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