- From: Patrick Stickler <patrick.stickler@nokia.com>
- Date: Thu, 1 Apr 2004 10:35:35 +0300
- To: "ext Dirk Colaert" <Dirk.Colaert@quadrat.be>
- Cc: "'public-rdf-dawg@w3.org'" <public-rdf-dawg@w3.org>
Have a look at http://sw.nokia.com/uriqa/URIQA.html#cbd http://lists.w3.org/Archives/Public/public-rdf-dawg/2004JanMar/0199.html which may give you a better idea of at least what I am thinking when I talk about asking a knowledge source "tell me about...". Patrick On Mar 31, 2004, at 16:56, ext Dirk Colaert wrote: > I got into this mail threads quite late, so, excuse me if I am > repeating things that have already been mentioned in other mails. > > About the use case AFS-2 > << Finds all information available, without a priori knowledge of what > to retrieve>> > > > > I'm a bit concerned about the word 'all'. Many databases and > ontologies will be very heavy. If you ask all information about > something you have the risk that the query will have very poor > performance. In real life situations it often happens that entities > are very much related to each other. When I try to imagine such a > query for a hospital database and I'm asking 'any information about > patient <ID>' I will drag the whole database into the result set (at > least touching many, many tables). > > > > Maybe we should consider a query: "What kind of information can you > give me about patient <ID> ?" and then, in a second time: "Give me > the medical history of this patient". > > > > Dirk > > > > > > > > ___________________________________ > > Dr. Dirk Colaert MD > > Production, Information Systems Architect > > Agfa > > HealthCare Informatics > > call +32 3 444 84 08 > > fax +32 3 444 84 01 > > > -- Patrick Stickler Nokia, Finland patrick.stickler@nokia.com
Received on Thursday, 1 April 2004 02:35:51 UTC