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Re: is FRBR relevant?

From: Jodi Schneider <jodi.schneider@deri.org>
Date: Mon, 9 Aug 2010 14:02:16 +0100
Cc: public-xg-lld@w3.org
Message-Id: <F27890C6-022E-4737-8086-73D0033E41B8@deri.org>
To: William Waites <ww-keyword-okfn.193365@styx.org>

On 9 Aug 2010, at 13:32, William Waites wrote:

> On 10-08-09 12:19, Jodi Schneider wrote:
>> What happens when the LCSH heading changes?
> Does this happen?

Yes, more often than you'd think. 

John Mark Ockerbloom analyzed his online books catalog recently, and found out that "286 unique subjects that needed replacement– over 3/4 of 1% of my headings, in less than 4 years." That's in a small catalog with 40,000 records (1% of the size of UPenn's). He made some changes (e.g. Cookery to Cooking) along the way when he heard about changes. http://everybodyslibraries.com/2010/07/31/keeping-subjects-up-to-date-with-open-data/

Ockerbloom's solution -- using RDF from the LC authorities and vocabularies service -- is a nice example of using open data, and his scripts might be useful for libraries that do this, along with manual flags.

> How is this handled now? Do
> libraries have to go and redo their entire
> catalogues?

Good question - any catalog maintainers around to say?

> I'm just guessing but I would think that they
> would add headings from time to time but they
> would rarely if ever delete or change an existing
> one. Although I could be very wrong...

See the post for examples, alas. I'm looking for a list of the *kinds* of changes and deletions made.

> Cheers,
> -w
> -- 
> William Waites           <william.waites@okfn.org>
> Mob: +44 789 798 9965    Open Knowledge Foundation
> Fax: +44 131 464 4948                Edinburgh, UK
> RDF Indexing, Clustering and Inferencing in Python
> 		http://ordf.org/
Received on Monday, 9 August 2010 13:02:50 GMT

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