Ah, but we're not talking about "entry vocabulary", we're talking about
labelling shelf ranges.
But I agree that the headings for LCC will be less user friendly than
LCSH. If there was a way to get LCC-to-LCSH mappings in an easily
usable way without paying tens of thousands of dollars, that would be
clever. (I'm not sure there's a way to get them even if you DO pay
millions of dollars).
So I was suggesting using the LCC headings themselves as a more feasible
alternate plan, is all. I agree it would be insufficient if we needed an
"entry vocabulary". But just for labelling shelf ranges on display, I
think it's probably not worse than nothing.
Of course, that's up to the implementer, what's better than nothing.
Quoting Jonathan Rochkind <[email protected]>:
For #2, you can provide a useful topical/subject type heading via
much simpler and more feasible solutions than mapping to LCSH. For
#2, you don't need a map to LCSH, you need the LCC schedules with
descriptions of what each range of LCC call numbers is for, in
machine-readable form.
I would give the opposite advice. LCC will have fewer pre-composed
headings than LCSH at id.loc.gov, and the terminology associated with
the numbers in digital LCC will be less user-centric than the LCSH
subject headings. cf my most recent blog post:
http://kcoyle.blogspot.com/2011/10/relativ-index.html
There isn't any entry vocabulary for users other than LCSH -- which
isn't really entry vocabulary to LCC and is definitely NOT entry
vocabulary to DDC.
kc
Thanks everybody!
this is useful for a couple of purposes
1) sometimes we have records that have call numbers, but no subject
headings.
this would be useful to provide those.
2) i'm thinking of providing a 'subject heading' label to our shelf
browser --
so users see, in addition to the callnumber -- what the call number
means.
thanks again!
rick
On Tue, Oct 18, 2011 at 2:33 PM, Jonathan
Rochkind<[email protected]> wrote:
Anyone know if the OCLC Terminology Service provides such a
mapping? The
Terminology Service may be free if you are already an OCLC cataloging
member.
At one point I think I saw an absolutely free open access machine
readable
mapping somewhere, that was made at some point in the past and no
longer
updated... but I cant' remember where I saw that even.
LC's Classification Web provides a mapping from LC classifications to
LC subject headings. There is a manual web interface, used mainly by
catalogers, which requires a subscription:
http://classificationweb.net/
I don't know if it has any kind of API.
Keith
On Tue, Oct 18, 2011 at 2:11 PM, Enrico Silterra<[email protected]>
wrote:
is there any way to go from a LC call number,
like DF853 to http://id.loc.gov/authorities/subjects/sh85057107
via some sort of api? opensearch?
thanks,
rick
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501 Olin Library Cornell University Ithaca NY 14853
Voice: 607-255-6851 Fax: 607-255-6110 E-mail: [email protected]
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