Has anyone looked at using the Classify web service for this? [1] It
doesn't have a batch mode, but it has a web service [2].
Roy

[1] http://oclc.org/research/activities/classify.html
[2] http://classify.oclc.org/classify2/api_docs/index.html


On Tue, Dec 10, 2013 at 2:53 PM, Kyle Banerjee <[log in to unmask]>wrote:

> This is my inclination. However, if the algorithm doesn't incorporate
> values from the tables used to synthesize Dewey numbers, identifying the
> stems of numbers may be tricky. It might be worth calling up someone at a
> major Dewey library like UIUC or Northwestern to see if they might be
> willing to provide data to add to what you get from LC.
>
> kyle
>
>
> On Tue, Dec 10, 2013 at 1:18 PM, Edward Summers <[log in to unmask]> wrote:
>
> > Not a naive idea at all. If you have the stomach for it, you could
> extract
> > the Subject Heading / Dewey combinations out of say the LC Catalog MARC
> > data [1] to use as training data for some kind of clustering [2]
> algorithm.
> > You might even be able to do something simple like keep a count of the
> > Dewey ranges associated with each subject heading.
> >
> > I’m kind of curious myself, so I could work on getting the subject
> heading
> > / dewey combinations if you want?
> >
> > //Ed
> >
> > [1] https://archive.org/details/marc_records_scriblio_net
> > [2] https://en.wikipedia.org/wiki/Cluster_analysis
> >
> > On Dec 10, 2013, at 8:18 AM, Irina Arndt <[log in to unmask]> wrote:
> >
> > > Hi CODE4LIB,
> > >
> > > we would like to add DDC classes to a bunch of MARC records, which
> > contains only LoC Subject Headings.
> > > Does anybody know, if a mapping between LCSH and DDC is anywhere
> > existent (and available)?
> > >
> > > I understood, that WebDewey
> > http://www.oclc.org/dewey/versions/webdewey.en.html  might provide such
> a
> > service, but
> > >
> > > ·         we are no OCLC customers or subscribers to WebDewey
> > >
> > > ·         even if we were, I'm not sure, if the service matches our
> needs
> > >
> > > I'm thinking of a tool, where I can upload my list of subject headings
> > and get back a list, where the matching Dewey classes have been added
> (but
> > a 'simple' csv file with LCSH terms and DDC classes would be helpful as
> > well- I am fully aware, that neither LCSH nor DDC are simple at all...) .
> > Naïve idea...?
> > >
> > > Thanks for any clues,
> > > Irina
> > >
> > >
> > > -------
> > >
> > > Irina Arndt
> > > Max Planck Digital Library (MPDL)
> > > Library System Coordinator
> > > Amalienstr. 33
> > > D-80799 Muenchen, Germany
> > >
> > > Tel. +49 89 38602-254
> > > Fax +49 89 38602-290
> > >
> > > Email: [log in to unmask]<mailto:[log in to unmask]>
> > > http://www.mpdl.mpg.de
> >
>