units and durations

Hi all,

I've got a question regarding standards to represent certain units and
durations with typed literals. We try to use standard data formats (such
as xsd:date) in DBpedia, and defined our own ones (such as
<http://dbpedia.org/ontology/kilometre>) if we couldn't find any

1. lengths: 
metre, kilometre, centimetre, km^2, etc.
dbpedia:Rhine <http://dbpedia.org/ontology/length>

2. runtimes
seconds, minutes, hours, days...
dbpedia:Yellow_Submarine_(song) <http://dbpedia.org/ontology/runtime>
dbpedia:The_Departed <http://dbpedia.org/ontology/runtime>

3. durations
dbpedia:Thirty_Years'_War <http://dbpedia.org/ontology/date>

Any pointers to standard data formats for those?


Georgi Kobilarov
Freie Universitšt Berlin

Received on Wednesday, 10 December 2008 13:41:55 UTC