datatypes Questions - Semantic Overflow most recent 30 from http://www.semanticoverflow.com 2010-07-31T08:01:00Z http://www.semanticoverflow.com/feeds/tag/datatypes http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://www.semanticoverflow.com/questions/836/use-a-custom-datatype-or-a-property-for-approximate-dates Use a custom datatype or a property for approximate dates? Ian Davis 2010-04-30T16:20:38Z 2010-06-10T21:58:40Z <p>I have a set of genealogical data that includes some vague/uncertain dates. For example, I may know that someone was born in May 1750 but not the exact day, or I may know they were born some time in the decade of the 1750s, or circa 1750 (meaning some years either side of it).</p> <p>Dublin Core have been looking at this area for a while and have a comprehensive set of requirements (http://dublincore.org/datewiki/DateRequirements) but no recommendation.</p> <p>My question is should I represent these kinds of dates using specific properties (e.g. ex:approximateDate) or with a datatype with a particular syntax?</p> http://www.semanticoverflow.com/questions/508/how-to-represent-dates-and-times-in-rdf How to represent dates and times in RDF? brinxmat 2010-01-28T11:24:11Z 2010-01-29T09:33:36Z <p>I have a dataset that has two different date-time datatypes; timestamps and from-to dates (lifespan data, formatted as yyyy–yyyy).</p> <p>I'm considering issues related to the formatting of these data, reuse and linking (such as linking to DBPedia dates).</p> <p>I'm aware that there are datatypes for dateTime and calendar data, but I wonder if there is an "accepted" way of representing these data.</p>