SWAO:Conference Call 20200406

Number 77
Duration 1 hour60 minute
3,600 second
0.0417 day
Date/Time April 6 2020 18:00 GMT
11:00 PDT/2:00pm EDT
7:00pm BST/8:00pm CEST
Convener Mike Bennett

IAOA Semantic Web Applied Ontology (SWAO) SIG

Meetings are normally on the first Monday of the month at these times.


  • Status and updates
    • CogSIMA Workshop plans and status
  • Housekeeping
    • Ken is getting iaoa-swao mailing list bounces. Not sure how to deal with this.
  • Ken's done a paper on category theory for multi-level modeling. It mentions RDF, ontologies, knowledge graphs, and even upper ontologies. Ken has just finished submitting this. Not sure if everyone in SWAO has seen the presentation for this.
  • AoB
  • Next Meeting


1. CogSIMA

Q: Anything from the organizers?

A: They are going virtual - already confirmed.

KB: Not sure of the value of a workshop which can be done any time.

MB: at the OMG meeting it was a benefit to have people all in one block of time so this is worth pursuing.

On CogSima dates - see this from email from Ken: the CogSIMA conference where I was planning to have a workshop has been postponed. It will now be in August or September.

Likely to be all virtual as well as being in August or September.

2. Housekeeping: Mail List

Ken has been getting bounces

From what to what?

At this point we looked at examples on Ken’s and Mike’s emails.

Outcome: These are not bounces they are simply from an address called ‘bounces’.

MB: Sounds like a code review weakness - someone thinks of a name for a thing in one context that makes no sense in other contexts.

Ken was unable to log in to the thing.

MB has not tried recently. Looked now.

When Ken goes to the link there is no clear indication of how to accept the post or pending subscription.

Bounces Summary:

The misnamed 'bounces' email sends one email per day for pending subscriptions. The one we are seeing was actioned by Frank Loebe but not right away. There were emails each day to Ken and to Mike from the poorly named ‘bounces’ address until he did.

Conclusion: We continue to not need to do anything on these.

3. Ken paper on Category Theory

MB has not seen this.

There is a paper and a presentation.

Submitted to Special Issue of Software and Systems Modeling journal. Special Issue on Multi Level Modeling.

Q: What's MLM?

A: This is based on e.g. the OMG MOF.

Q: So is this 'levels' in the meta sense, not in the sense of Conceptual / Logical / Physical?

A: 'Levels' here is e.g. M0 M1 M2 and so on. As defined in OMG literature. But also levels of design elaboration. The paper covers both.


For the rest of the meeting, Ken went through the slide deck, with feedback and questions from Mike.

MB: This will be of interest to several of our researchers in the Semantic Shed community. We would like to have Ken present to this group on a suitable date. Ken agrees to do so. Mike will run this idea past the Shed group this week (the paper will be of interest to some but not others) and then arrange a date for the presentation.

Next meeting

May 4

NOT a bank holiday in UK as it would normally have been

Not a holiday in the US anyway.

Advertise these meetings a week before and try to get more attendance this time.



Meeting ends 15:27


  • MikeBennett
  • KenBaclawski

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