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On Wed, Jul 7, 2010 at 7:00 PM, Doran, Michael D <[log in to unmask]> wrote: > Of course, subfield $3 values are not any kind of controlled vocabulary, so it's hard to do much with them programmatically. A few years ago I analyzed the subfield 3 values in the Library of Congress data up at the Internet Archive [1]. Of course it's really simple to extract, but I just pushed it up to GitHub, mainly to share the results [2]. I extracted all the subfield 3 values from the 12M? records, and then counted them up to see how often they repeated [3]. As you can see it's hardly controlled, but it might be worthwhile coming up with some simple heuristics and properties for the familiar ones: you could imagine dcterms:description being used for "Publisher description", etc. Of course the $3 in your catalog data might be different from LCs, but maybe we could come up with a list of common ones on a wiki somewhere, and publish a little vocabulary that covered the important relations? //Ed [1] http://www.archive.org/details/marc_records_scriblio_net [2] http://github.com/edsu/beat [3] http://github.com/edsu/beat/raw/master/types.txt