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Absence of mention of units of measure for columns is very surprising #741
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Just my perspective, but I think the issue is that there is no one standard way of describing units in RDF data. As the basic data model used by CSV on the Web closely corresponds to RDF, the fact that literal values extracted from CSV cells don’t have more dimensions is related to this underlying lack of a data model for describing data with units. Searching for this indicated a couple of different ways to handle it:
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@dr-shorthair [simon cox] One of my key goals for CSV on the Web was to be able to convey CSV-encoded environmental data as RDF. This means that getting the units of measure explicitly mentioned is an important part of that information. As Gregg points out, there is not a single convention for expressing units of measure. Gregg defines two, and then there's the RDF Data Cube mechanism of 'attaching' attributes (such as UoM) to the columns of data. I am satisfied that I can express units of measure in the CSV-metadata ... but agree that it's not entirely straightforward. Your insight into the starting point of a scientist wanting to publish data is useful. I think that the best way forward here is: Would that be sufficient to resolve your concerns? (at least in the interim whilst there is no single convention for describing units of measure in RDF) |
Thanks Jeremy - Yes - that would probably be enough for the moment. Definitely need to fill the silence in the model document, even if it is just to acknowledge that there is no single solution, and point out to the Primer, where some options are illustrated. |
@JeniT to add something in the model document to say that units of measure aren't treated as anything special. |
Copy of a comment from Simon Cox on the mailing list, to be handled alongside the others.
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