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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 To Post a message, send it to: xtm-wg@eGroups.com To Unsubscribe, send a blank message to: xtm-wg-unsubscribe@eGroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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