Re: [ontolog-forum] Evaluating Knowledge Representation (KR), Proper Nam

[William Frank <williamf.frank@xxxxxxxxx>]

De: ontolog-forum-bounces@xxxxxxxxxxxxxxxx [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] Em nome de Edmon Begoli
Enviada: 5 de janeiro de 2013 03:26
Para: [ontolog-forum]
Assunto: [ontolog-forum] Evaluating Knowledge Representation (KR), Proper Naming

 

Dear colleagues, fellow ontologists and Knowledge Representation experts:

 

I have two questions that are of direct importance to my dissertation that is most directly related to the subject I am discussing here.

Questions I am asking might seem naive, but I am attempt is to actually be precise and specific with terms that are casually used 

hence I am asking this expert group:

 

1. Is Knowledge Representation an artifact? If one is to develop a KR for a particular domain (hypothetically speaking - skin cancer detection and diagnosis) 

would it most appropriate labeling be Skin Cancer Knowledge Representation, Skin Cancer Knowledge Representation Scheme, 

Skin Cancer Knowledge Representation Framework or Knowledge Representation for Skin Cancer?

I believe that normally, "Knowledge Representation" refers to *techniques* for representing knowledge, not to the body of knowledge so represented.  The field of KR produces languages and inference techniques.  A knowledge repository or knowledge base, using such a KR language would contain the actual knowledge.   

For example, an ontology for a domain of knowledge, like Currency Exchange, needs to be expressed in a language.  The language used might be Common Logic.  The result of making certain currency exchange statements in CL  would be  be a Currency Exchange Ontology, *not* a Currency Exchange Knowledge Representation."   As an ontology, the CurrExOnt would only describe the 'concepts' in the domain, not the empirical facts.  For example, the CurrExOnt would tell you that currencies have issuers, and that an exchange rate is a ratio between one currency and another, used by a set of trading partners to compute the value of one currency in terms of the other.  But the ontology would not include the time series of London interbank Euro-Yen exchange rates. I think that information, expressed in the same language as the ontology,  again say Common Logic, would rather be in a currency exchange knowledge base, or a similar name.
 

2. If one is to develop a KR for Skin Cancer, what would be the way to evaluate the KR? What would be the method and the criteria.

 

I will be most grateful for your advices and references to a good, practical literature on this topic. I think I made a solid progress on this 

subject in my dissertation proposal, but I would like to "tighten" it up.

 

Thank you,

Edmon

 

 

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-- 
William Frank

413/376-8167


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