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Re: [Semantic_Web] Ontology Vs Semantic Networks

From: Matt Williams <matthew.williams@cancer.org.uk>
Date: Wed, 30 May 2007 18:19:08 +0100
Message-ID: <465DB20C.2060202@cancer.org.uk>
To: Simon Margulies <simon.margulies@unibas.ch>, Semantic Web <semantic-web@w3.org>

I would also recommend John Sowa's Knowledge Representation

Matt

Simon Margulies wrote:
> thanks a lot for this post!
> 
> I'm writing about ontologies as historical resources, which could be 
> researched by future historians. In other words, what historians need to 
> know about ontology concepts, to be able to analyze a preserved ontology 
> to conclude some information about the past.
> 
> So far I understand ontologies (in computer science) as having emerged 
> out of earlier approaches for knowledge based systems like semantic 
> networks or framebased languages by defining not only the syntax (like 
> semantic networks or framebased languages) but adding explicit formal 
> semantics in form of description logic. Thereby it gets possible, that 
> several independent systems can share one ontology whereas in the former 
> to this could be a problem. 
> 
> As an information source I can recommend: 
> - Ulrich Reimer: Einführung in die Wissensrepräsentation. Netzartige und 
> schema-basierte Repräsentationsformate. Stuttgart 1991.
> - Baader, F.: Calvanese, D; et al. The Description Logic Handbook. 
> Cambridge 2003.
> (both in German..)
> 
> Being historian writing about concepts in computer science, I struggle 
> often with not-precise and not-consistently used definitions in that 
> field.. I consider such exchanges most valuable and would be happy about 
> any corrections!
> 
> Simon
> 
> On 29.05.2007, at 10:14, Danny Ayers wrote:
> 
>>
>> [cc'ing semantic-web@w3.org <mailto:semantic-web@w3.org>]
>>
>> On 28/05/07, james.jim.taylor@gmail.com 
>> <mailto:james.jim.taylor@gmail.com> <james.jim.taylor@gmail.com 
>> <mailto:james.jim.taylor@gmail.com>> wrote:
>>>
>>> How can we distinguish between ontologies and semantic networks, and
>>> in what respects are they similar.
>>>
>>> I would appreciate any comments or references explaining that.
>>
>> Mmm, homework...
>>
>> Broadly speaking any graph-shaped knowledge representation (including
>> e.g. OWL ontologies, RDF data) could be described as semantic
>> networks. But if memory serves, historically semantic networks tended
>> to lack logical formalism, more along the lines of mindmaps - a
>> precursor to things like RDF/OWL.
>>
>> John Sowa has a survey at:
>> http://www.jfsowa.com/pubs/semnet.htm
>>
>> Cheers,
>> Danny.
>>
>> -- 
>>
>> http://dannyayers.com
>>
>>
> 
> 
> 
> 
> --
> Simon Margulies, lic. phil. hist.
> University of Basel
> Imaging & Media Lab
> +41 61 267 04 88
> http://www.distarnet.ch
> 

-- 
http://acl.icnet.uk/~mw
http://adhominem.blogsome.com/
+44 (0)7834 899570
Received on Wednesday, 30 May 2007 17:19:32 UTC

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