When you say "ClassWeb can't be used as a source", do you mean it's not
what's needed here, or that it's not permitted to use data extracted
from ClassWeb for other purposes?
If the answer is "not permitted", then:::
- If the LC schedules are elsewhere, say a printed version, and we do
the work of putting together the class numbers and class names, and then
build a database for that, is that "ok"? =)
I guess I can ask the NCSU Libraries (Endeca) folks how they did it (it
seems that they do cluster by "LC range" which seems to be from the LC
Class schedules)...
_alex
Kyle Banerjee said the following on 01/02/2008 04:04 p.m.:
> A couple thoughts come to mind with regards to your problem. One is
> that ClassWeb can't be used as a source of data. You can purchase
> records from LC, but frankly I don't think that's a good way to go
> (and it's expensive).
>
> A better approach might be to perform a record extraction from a very
> large library -- preferably a consortium where you can get a lot of
> data. You will need to clean the data to ignore local call numbers,
> low quality records, general numbers given to analyzed series, etc,
> but you could then perform statistical analysis of call number stems
> against subjects, keywords, or whatever you like.
>
> I wouldn't get too attached to trying to make a sensible hierarchy.
> Both the subject headings and classification schedules are more
> enumerative than hierarchical so you will be limited in the depth you
> can achieve. It seems like you could use co occurrence to determine
> the order in part of your display, and facets like a lot of people are
> doing in their catalogs for the rest.
>
> kyle
>
>
>> I need something that will map an LC class number into one of many
>> "subject groups" exactly like or similar to the OCLC Conspectus.
>>
>> Hopefully, I could do this on the fly, programatically, with a web
>> service of some sort.
>>
>> Is this something that Is In Breach of some legal agreement or licensing
>> regarding the OCLC Conspectus? If I look at conspectus reports from a
>> library, look at LC Class ranges in ClassWeb, and build something that
>> maps one to the other, is this ?
>>
>> I just want to do what the OCLC Collection Analysis service does, but
>> one item at a time, to then let users navigate an OPAC by that
>> dimension. (Hopefully, we'd then have a hierarchical way to navigate
>> thru items catalogued with LCCs).
>>
>>
>
>
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Received on Fri Feb 01 2008 - 19:02:08 EST