This is as close to an official statement as I can find:
I've asked around, but can't add anything to that.
From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Karen Coyle
Sent: Friday, June 12, 2015 12:35 PM
To: [log in to unmask]
Subject: Re: Auto discovery of Dewey, UDC
Hi. I tweeted this last month and got a reply that dewey.info is indeed currently down for major work, but is intended to return. That said, it was intended to return a month or two ago, so the usual coding project delays are in action here. ;-)
On 6/12/15 7:08 AM, Sergio Letuche wrote:
> 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:
>> 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.
>> 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
>>>>  http://leo.cineca.it/index.php/jlis/article/view/8766
>>>>  http://leo.cineca.it/index.php/jlis/article/view/8766/8060
>>>> On 12/giu/2015, at 12:03, Sergio Letuche <[log in to unmask]>
>>>>> hello community!
>>>>> we are facing this challenging issue. We need to complete for a vast
>>>>> of records, the dewey, UDC info, has anyone had any experience with
>>>>> We need some way (via modeling? mahout?) to try and discover these
>>>>> based on some text, found in the records' metadata, and then auto
>>>>> these values.
>>>>> I would appreciate any feedback, if there is any opensource tool you
>>>>> used for this purpose, or if you are aware of any best practice for
>>>>> this task.
>>>> Il tuo 5x1000 al Patronato di San Girolamo della Carita' e' un gesto
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>> Péter Király
>> software developer
>> GWDG, Göttingen - Europeana - eXtensible Catalog - The Code4Lib Journal
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