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Re: Comments to Rules Working Group Charter Draft $Revision: 1.60$ (Part II)

From: doug foxvog <doug.foxvog@deri.org>
Date: Tue, 13 Sep 2005 18:05:32 +0100
To: Giorgos Stamou <gstam@softlab.ntua.gr>
Cc: 'Dave Reynolds' <der@hplb.hpl.hp.com>, 'Sandro Hawke' <sandro@w3.org>, public-rule-workshop-discuss@w3.org
Message-id: <432706DC.7030506@deri.org>

Giorgos Stamou wrote:
>>-----Original Message-----
>>From: Dave Reynolds [mailto:der@hplb.hpl.hp.com]

>>For good or ill, the emphasis of the draft charter is not on an
>>implementable language but on an interlingua for exchange of rules
>>between existing systems. It's not clear that the uncertainty use cases
>>really fall into the interlingua remit. I would have thought that the
>>issues of successful exchange and integration of rules involving
>>uncertainty reasoning would be much greater that those of simply using
>>fuzzy inference within a single system. Whereas the use cases seemed to
>>want an implemented language they could use without a particular need
>>for rule exchange.

> [Giorgos Stamou] 
> I think they fall in the same framework. In the case you have different rule
> systems dealing with uncertain and fuzzy rules, they should exchange these
> rules in a similar form, in order to be able to deliver the uncertainty and
> fuzziness.  

Since the emphasis is not on an implementable language, but on an
interlingua, an interlingua with the same form as the non-probabilistic
rules that can express uncertainty should be acceptable to both sides.

Could this not be done through the use of simple wrappers around any
probabilistic rules?  It seems to me that this could be done by applying
an attribute to a rule/assertion that states the fuzziness of the

Although treating a rule/assertion as an object increases logical
complexity, an interlingua not designed to be implementable should
be able to handle this.

This solution would have no effect on non-probabilistic statements but
would provide a means for an interlingua to express fuzzy (or other
kinds of) probability attached to statements.

This also has the advantage of allowing for multiple forms of
probability to be encoded.

-- doug foxvog

douglas foxvog	  doug.foxvog@deri.org	 +353 (91) 495 150
Digital Enterprise Research Institute (DERI)
National University of Ireland, Galway
Galway, Ireland				http://www.deri.ie
Received on Tuesday, 13 September 2005 17:05:41 UTC

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