Quoting Jonathan Rochkind <[log in to unmask]>:


> 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<[log in to unmask]>  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<[log in to unmask]>
>>>>  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
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Enrico Silterra Software Engineer
>>>>> 501 Olin Library Cornell University Ithaca NY 14853
>>>>> Voice: 607-255-6851 Fax:     607-255-6110 E-mail: [log in to unmask]
>>>>> http://www.library.cornell.edu/dlit
>>>>> "Out of the crooked timber of humanity no straight thing was ever made"
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>>
>>
>



-- 
Karen Coyle
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