Re: PowerLoom and SUMO

Thanks for the input.  My plan is to contribute a SUMO->PowerLoom 
translator to the community.  I will post its location to this forum 
when completed.

Cheers,
Cameron.

Hans Chalupsky wrote:
> Cameron,
>
> it shouldn't be too hard to create a translator from SUO-KIF to
> PowerLoom.  There are a few things you need to do:
>
> (1) You need to create concept and relation definitions for each
> concept and relation used in the ontologies before they can be used in
> assertions.  These definitions can't (yet) be made via assertions but
> need to be done via `defconcept' and `defrelation' (or `deffunction');
> however, the definitions can be minimal and simply introduce the term
> (and arity in the case of relations).  All other information such as
> sub/superconcepts/relations, argument domains, rules, etc. can be
> generated via standard assertions.  For example:
>
> (defconcept Person)
> (defconcept Animal)
> (assert (subset-of Person Animal))
> (assert (documentation Person "The class of human beings"))
> (defrelation brother (?x ?y))
> (assert (nth-domain brother 0 Person))
> (assert (nth-domain brother 1 Person))
> ....
>
> That is, all the keywords used in PowerLoom definitions are really
> just syntactic sugar and can be handled via standard assertions.
>
> (2) You need to watch out for subtle differences.  For example, the
> SUO-KIF version of `nth-domain' is 1-based while PowerLoom's version
> is 0-based (I remember that from some quick attempt of translating
> SUMO into PowerLoom some years ago - never finished that).
> There might be others.
>
> I remember some people from NIST translated SUMO into Loom, so it
> should certainly be possible to translate it into PowerLoom.
>
> If you succeed and it is feasible for you to do so, it would be great
> if you could make (some of) the translations available to the community.
>
> Hans
>
> --------------------------------------------------------------------------
> Hans Chalupsky, PhD                     USC Information Sciences Institute
> Project Leader, Loom KR&R Group         4676 Admiralty Way
> <[email protected]>                          Marina del Rey, CA 90292
> (310) 448-8745
> --------------------------------------------------------------------------
>
>   
>>>>>> Cameron Ross <[email protected]> writes:
>>>>>>             
>
>   
>> I would like to construct a PowerLoom knowledge-base using ontologies 
>> constructed with SUO-KIF (http://suo.ieee.org/SUO/KIF/index.html).  My 
>> current plan is to create a tool that translates from SUO-KIF to 
>> PowerLoom KIF.  Note that SUO-KIF is a minimalistic implementation of 
>> KIF whereby many traditional KIF features have been moved out of the 
>> language with the intention of having them defined using ontologies 
>> (e.g.  defconcept, defrelation etc. don't exist in the language).  I 
>> could implement the translator such that it maps these concepts, or I 
>> can just account for keyword differences and load in the SUMO ontology 
>> with the requisite abstractions.  I'd prefer to do the later as it would 
>> be very simple to implement, but I'm concerned that I'll be missing out 
>> on some key PowerLoom features.  Are there any recommendations as to how 
>> I should proceed?
>>     
>
>   
>> Cheers,
>> Cameron.
>>     
>
>   
>> _______________________________________________
>> powerloom-forum mailing list
>> [email protected]
>> http://mailman.isi.edu/mailman/listinfo/powerloom-forum
>>     
>
>

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