dewey.info

seems to be dead, we have also checked this.

2015-06-12 16:57 GMT+03:00 Péter Király <[log in to unmask]>:

> Hi Sergio,
>
> As part of eXtensible Catalog we developed a Dewey module for Drupal,
> which takes a Dewey number, and use OCLC's dewey.info to fetch the
> textual description of the part. When it was created the service
> contained only 3 levels of the classification system, since then they
> went ahead, and now it is deeper.
>
> You can find the sorce here:
> http://cgit.drupalcode.org/xc/tree/xc_dewey/xc_dewey.module?h=7.x-1.x
>
> Maybe it helps you.
>
> Regarding to UDC: it is much a harder task, and when I worked with it,
> I run into a blocking problem, which is that UDC was not licenced as
> freely usable, and I was not able to get a licence to use it in an
> open source project. There were some other problems as well: UDC
> changed from time to time, and sometimes it means, that a given
> classification code means this thing in a given point of time, and
> that thing some years later. The MARC catalog I worked with did not
> contain any information about the UDC versions, so the accuracy of the
> tool was not guaranted (of course you can do some intelligent
> guessing). And the last problem was, that on contrary to the Dewey
> classification UDC contains sometime very lengthy descriptions instead
> of one or two words. Semantically it is OK, but makes the UI design a
> little bit hard, and if you want to search for the textual
> description, you'll end up sometimes with a "noisy" result set.
> Otherwise to handle the operators, the subclasses, and all the nice
> things UDC provides is a very interesting challange.
>
> Cheers,
> Péter
>
>
> 2015-06-12 12:59 GMT+02:00 Sergio Letuche <[log in to unmask]>:
> > thank you very much for your quick reply, dear Stefano,
> >
> > i appreciate it
> >
> > 2015-06-12 13:47 GMT+03:00 Stefano Bargioni <[log in to unmask]>:
> >
> >> Hi, Sergio:
> >> maybe this article [1 abstract] [2 English text] can give you some basic
> >> ideas. We added a lot of DDC info in our Koha catalog two years ago.
> >> HTH. Stefano
> >>
> >> [1] http://leo.cineca.it/index.php/jlis/article/view/8766
> >> [2] http://leo.cineca.it/index.php/jlis/article/view/8766/8060
> >>
> >> On 12/giu/2015, at 12:03, Sergio Letuche <[log in to unmask]>
> wrote:
> >>
> >> > hello community!
> >> >
> >> > we are facing this challenging issue. We need to complete for a vast
> >> amount
> >> > of records, the dewey, UDC info, has anyone had any experience with
> this?
> >> > We need some way (via modeling? mahout?) to try and discover these
> >> values,
> >> > based on some text, found in the records' metadata, and then auto
> >> complete
> >> > these values.
> >> >
> >> > I would appreciate any feedback, if there is any opensource tool you
> have
> >> > used for this purpose, or if you are aware of any best practice for
> doing
> >> > this task.
> >> >
> >> > Best
> >> >
> >>
> >>
> >> __________________________________________________
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>
>
>
> --
> Péter Király
> software developer
> GWDG, Göttingen - Europeana - eXtensible Catalog - The Code4Lib Journal
> http://linkedin.com/in/peterkiraly
>