Re: [ontolog-forum] Ontologies for hybrid connectionist-semantic systems

[ravi sharma <drravisharma@xxxxxxxxx>]

Leo

 

1. I have also been advocating Ontologies that take in to account uncertainties for last 2+ years and simultaneously commending Dr. Kathy Lasky's work at GMU where I attended her workshop on Uncertainty Ontologies at GMU 2 years ago.
2. Another equally important factor (in addition to Bayesian or probabilistic formalism) that I have been advocating is inclusion of NOTION OF STRENGTH OF RELATIONSHIPS or Predicate Strength for given ontology. This would make sinference engines more responsive in their relevance ranking.

Many thanks for bringing this reference.

 

Regards.

.

--

Thanks.

Ravi

(Dr. Ravi Sharma)

313 204 1740 Mobile

 

On Fri, Dec 3, 2010 at 7:12 PM, Obrst, Leo J. <lobrst@xxxxxxxxx> wrote:

> Yes, PR-OWL is a fusion of OWL + Bayesian Semantics, and is the result of

> Paulo Costa’s GMU dissertation. However, the foundation was laid in Kathy

> Laskey’s multi-entity Bayesian networks (MEBN) work, which is a FOL +

> probability formalism.

>

>  

>

> See:

>

>  

>

> Costa, Paulo; Kathryn Blackmond Laskey. 2006. PR-OWL: A Framework for

> Probabilistic Ontologies. Proceedings of the Fourth International Conference

> on Formal Ontology in Information Systems. November 2006.

> http://ite.gmu.edu/~klaskey/papers/FOIS2006_CostaLaskey.pdf.

>

>  

>

> http://pr-owl.org/mebn/index.php.

>

>  

>

> Also, the URL Simon provided http://www.pr-owl.org/index.php has most of the

> references.

>

>  

>

> Thanks,

>

> Leo

>

>  

>

> _____________________________________________

>

> Dr. Leo Obrst        The MITRE Corporation, Information Semantics

>

> lobrst@xxxxxxxxx     Information Discovery & Understanding, Command &

> Control Center

>

> Voice: 703-983-6770  7515 Colshire Drive, M/S H305

>

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>  

>

>  

>

> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx

> [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Simon Spero

> Sent: Friday, December 03, 2010 6:45 PM

> To: [ontolog-forum]

>

> Subject: Re: [ontolog-forum] Ontologies for hybrid connectionist-semantic

> systems

>

>  

>

> I don't know how close this gets to what's being asked for, but Paul

> Costas's work on PR-OWL might be relevant. See e.g.

> http://www.pr-owl.org/index.php

>

> I don't know if this specific proposal is being actively developed?

>

> Simon

>

> On Dec 3, 2010 6:09 PM, "John F. Sowa" <sowa@xxxxxxxxxxx> wrote:

>> On 12/3/2010 5:48 PM, John Bottoms wrote:

>>> IBM has made significant progress with a hybrid system that incorporates

>>> semantic and statistical analysis to find answers to Jeopardy questions.

>>> ...

>>> Could this be done within OWL by masquerading or encapsulating?

>>> Or would a new structure be required?

>>

>> The short answer is no.

>>

>> OWL was deliberately limited in capability, and it was designed for

>> processing RDF data.

>>

>> AI projects such as IBM's system, Cyc, our VivoMind work, and many

>> other systems for NLP use much richer and more complex knowledge

>> representation and reasoning systems than OWL. And they use far

>> more efficient data representations than RDF.

>>

>> OWL was never designed for AI or NLP.

>>

>> John Sowa

>>

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--

Thanks.

Ravi

(Dr. Ravi Sharma)

313 204 1740 Mobile

 

 

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