Re: Trip Reports on Dagstuhl Seminar on Knowledge Graphs

Hi Paola,

if you look for technical depth, in the sense of typical KR conferences, including nice theorems and proofs, there is not so much you will find around  KGs (with few exceptions).
However, if there are KR systems built on deep theories at all (for most formalisms there aren’t such systems), they constitute niche applications,
run by a few people for a few people.

What is intriguing about KGs is their scale. They are large by themselves, they are run by large teams for even much, much larger number of people
and I would argue that they do capture knowledge even if not at the level of sophistication of some first order modal logics.

Now, there are plenty of questions:
- how can deep theories make KGs better but in a way that scales to these many people (who run or use KGs)? Experience shows that e.g. OWL, even if simple by KR standards, does not scale this way
- how do these theories scale technically? (again some tasks are better not done in OWL, others are)
- how to integrate different knowledge and/or data sources?
- how to build usable ontologies? (it turned out that the clean and powerful, but hard to use ontologies that I built with my team were never used as much as some simple and dirty ontologies other people built for similar purposes)
- how to use statistics? (Btw: here it gets tricky again)
etc. etc.

The tricky thing is that the assumptions change under which knowledge is considered and that is what makes KGs interesting 
compared to previous work. Maybe this could be made a bit more explicit.

Cheers
Steffen

> Am 28.08.2019 um 09:32 schrieb Paola Di Maio <paoladimaio10@gmail.com>:
> 
> Axel
> thanks for posting the copy of the report
> 
> Yes, I was referring to the content of the report, do you have more materials to share
> that show the depth of the discussions you are referring to?
>  
>  I hope you will acknowledge that some quite well-known and respected scholars in KR have actually been presenting and contributing to the Dagstuhl seminar and the report.
> 
> This is precisely the point- given the  profiles (and the amount of public money spent to train and pay the salary of high profile  SW scholars in the last twenty years) I was hoping for something more
> intelligent? Lack of scientific  objectivity and  superficiality of the content of report (given the lack of accessibility to more profound references unless you share some) can only be attributed to partiality or some malplractice/ deficiency . I dont know how to say it.
> 
> I do however apologise for the lack of diplomacy, and for my brashness
> 
> PDM
> 
> 
> 
>  
> 
> regards,
> Axel
> --
> url: http://www.polleres.net/ <http://www.polleres.net/>  twitter: @AxelPolleres
> 
> > On 28.08.2019, at 08:01, Paola Di Maio <paola.dimaio@gmail.com <mailto:paola.dimaio@gmail.com>> wrote:
> > 
> > Juan and all
> > 
> > I finally got hold of the report, courtesy of Alex P
> > /aic.ai.wu.ac.at/~polleres/publications/bona-etal-DagstuhlReport18371.pdf <http://aic.ai.wu.ac.at/~polleres/publications/bona-etal-DagstuhlReport18371.pdf>
> > 
> > As a scholar in KR, I am concerned at the suggestion that KG are being proposed
> > as KR,  and at the superficiality of the content of this report, and I am aggravated to note the complete lack of acknowledgement of  the limitations of this approach.  
> > 
> > Sounds like a good example of ineptitude, inadequacy and corruption  heavily influencing academic research and the field of AI KR
> > 
> > *two cents still allowed?
> > 
> > PDM
> > 
> > 
> > 
> > On Thu, Sep 20, 2018 at 6:41 AM Juan Sequeda <juanfederico@gmail.com <mailto:juanfederico@gmail.com>> wrote:
> > Hi all,
> > 
> > Last week there was a Dagstuhl seminar on: Knowledge Graphs: New Directions for Knowledge Representation on the Semantic Web
> > https://www.dagstuhl.de/en/program/calendar/semhp/?semnr=18371 <https://www.dagstuhl.de/en/program/calendar/semhp/?semnr=18371>
> > 
> > A formal report will be coming out soon. For the mean time, some folks have written their own reports. I'm sure folks in this community would be interest:
> > 
> > Eva Blomqvist: http://blog.liu.se/semanticweb/2018/09/15/dagstuhl-seminar-on-knowledge-graphs/ <http://blog.liu.se/semanticweb/2018/09/15/dagstuhl-seminar-on-knowledge-graphs/>
> > Paul Groth: https://thinklinks.wordpress.com/2018/09/18/trip-report-dagstuhl-seminar-on-knowledge-graphs/ <https://thinklinks.wordpress.com/2018/09/18/trip-report-dagstuhl-seminar-on-knowledge-graphs/>
> > Juan Sequeda: http://www.juansequeda.com/blog/2018/09/18/trip-report-on-knowledge-graph-dagstuhl-seminar/ <http://www.juansequeda.com/blog/2018/09/18/trip-report-on-knowledge-graph-dagstuhl-seminar/>
> > 
> > Cheers
> > 
> > Juan
> > 
> > --
> > Juan Sequeda, Ph.D
> > www.juansequeda.com <http://www.juansequeda.com/>
>