Thanks all for your answers. Markus, that information about OWL 2 sounds great. I will read it carefully.
Regards, Marcos. 2009/9/7 Markus Krötzsch <m...@aifb.uni-karlsruhe.de> > On Dienstag, 1. September 2009, Philipp Zaltenbach wrote: > > Hi Marcos, > > > > if you are looking for a semantic-wiki based implementation of UoM check > > out: http://semantic-mediawiki.org/wiki/Help:Custom_units > > SMW allows you to handle and define your own UoM, being able of > > automatically converting units. > > Right, but this is a non-ontological preprocessing of the user input only. > SMW's approach is to try and convert all data to one standard unit instead > of > encoding unit conversion information in RDF. Of course, it could be > interesting to use some unit of measurement ontology to export this > conversion > information with the data. > > I also note that OWL 2 provides a mechanism for arithmetic predicates that > could possibly be used to define numeric relationships on the ontology > level. > See [1] for details. > > Regards, > > Markus > > [1] http://www.w3.org/TR/owl2-dr-linear/ > > > > > Regards, > > Philipp > > > > Marcos Martínez schrieb: > > > Hi everybody, > > > > > > I am looking for a way of automatically converting values associated > > > to different units of measurement in a standardized manner. I know > > > that there are several units of measurement ontologies [1] and also > > > that a great job is being done in building a “Quantity and Unit of > > > Measure Ontology-based standard”. Does anybody know how to use an > > > ontology of measurement units to make the conversion between different > > > values (e.g. converting 1000 kilograms into grams), or if there is any > > > previous work trying to solve this issue? > > > > > > Thanks in advance. > > > > > > > > > Marcos. > > > > > > [1] http://ontolog.cim3.net/cgi-bin/wiki.pl?UoM > > > > > > > ------------------------------------------------------------------------ > > > > > > _______________________________________________ > > > swikig mailing list > > > swikig@aifb.uni-karlsruhe.de > > > http://www.aifb.uni-karlsruhe.de/mailman/listinfo/swikig > > > -- > Markus Krötzsch > Institute AIFB, Universität Karlsruhe (TH), 76128 Karlsruhe > phone +49 (0)721 608 7362 fax +49 (0)721 608 5998 > m...@aifb.uni-karlsruhe.de www http://korrekt.org > http://semantic-web-book.org http://semantic-mediawiki.org > -- Un saludo, Marcos Martínez Romero
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