RE: [xtm-wg] An Approach to the Semantic Web

["Danny Ayers" <danny@panlanka.net>]

Very interesting, thanks.

---
Danny Ayers
http://www.isacat.net

>-----Original Message-----
>From: H. Holger Rath [mailto:hhr@step.de]
>Sent: 11 May 2001 13:12
>To: xtm-wg@yahoogroups.com
>Subject: Re: [xtm-wg] An Approach to the Semantic Web
>
>
>Danny Ayers wrote:
>> 
>> >tools available for queries.  For XTM, the benefit may come from the
>> >easiness for semantic discovery and enrichment (e.g., discovering
>> >topics and adding associations).
>> 
>> I'm not yet very familiar with topic maps, are you saying that there are
>> tools already available for XTM for discovering topics and adding
>> associations?
>
>Check http://k42.empolis.co.uk/
>
>empolis implemented its draft of the Topic Map
>Querly Language TMQL in its XTM product k42.
>Even more powerful is the JAVA API of the engine -
>it provides read/write/update access to the complete
>TM on the conceptual level of XTM. You can get a 
>free download at the mentioned URL.
>
>Here is an example how (empolis) TMQL works:
>
>In natural language: 
>	Which operas were composed by Germans 
>	influenced by Mozart?
>
>In more formal style:
>	All topics of type "Opera" 
>	which were composed by "Persons"
>	which were influenced by "Mozart"
>	and born in "Germany"?
>
>eTMQL:
>	SELECT topic x WHERE
>	 x instance_of topic named "Opera"
>	AND
>	 x in (assoc template_is assoctemp named "composed by") has
>	 topic person instance_of topic named "Person"
>	AND
>	 person in (role named "influenced person") in
>	 (assoc template_is assoctemp named "influenced by") has
>	 (role named "influencing person") has topic named "Mozart"
>	AND
>	 person in (assoc template_is assoctemp named "born in") has
>	 topic named "Germany"
>
>--Holger
>
>-- 
>Dr. H. Holger Rath <holger.rath@empolis.com>
>empolis content management GmbH
>Havelstr. 9, 64295 Darmstadt, Germany
>http://www.empolis.com/ -- mobile: +49.172.66.90.427
>phone: +49.6151.380.292 -- fax: +49.6151.380.488
>
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