- From: Dan Brickley <danbri@w3.org>
- Date: Mon, 17 Mar 2003 15:45:26 -0500
- To: Jonathan Borden <jonathan@openhealth.org>
- Cc: "Roger L. Costello" <costello@mitre.org>, www-rdf-logic@w3.org
* Jonathan Borden <jonathan@openhealth.org> [2003-03-17 15:31-0500] > > Roger L. Costello wrote: > > > > Okay, that's the scenario outline. Can someone fill in the details? > > Remember, it must be *simple* and it must lead to this inference: > > > > The Robber and the Speeder are the same person. > > > > This inference might be entailed from the use of an _inverse functional > property_. Let's assume for the sake of discussion that there is some type > of biometric property that can undoubtedly identify a person (that is for > each value of "fingerprint" there is at most one individual to which this > belongs) > > e.g. > > ex:Speeder foo:fingerprint urn:uuid:12345... . > ex:Robber foo:fingerprint urn:uuid:12345... . > > foo:fingerprint a owl:InverseFunctionalProperty . > > => > > ex:Speeder owl:sameIndividualAs ex:Robber . Actually there is a property in FOAF that fits this usecase. Not 'fingerprint', but foaf:dnaChecksum. It was intended as a JOKE! but also a warning of technology potential... (see also various concerns many have with TIA, eg. http://www.warblogging.com/tia/). See http://xmlns.com/foaf/0.1/ (view src) for foaf:dnaChecksum definition. I didn't actually specify an algorithm or even concrete syntax, needless hopefully to say... <rdf:Property rdf:about="http://xmlns.com/foaf/0.1/dnaChecksum" rdfs:label="DNA checksum" rdfs:comment="A checksum for the DNA of some thing. Joke."> <rdf:type rdf:resource="http://www.daml.org/2001/03/daml+oil#UnambiguousProperty"/> <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#InverseFunctionalProperty"/> <rdfs:isDefinedBy rdf:resource="http://xmlns.com/foaf/0.1/"/> </rdf:Property> --danbri
Received on Monday, 17 March 2003 15:45:29 UTC