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CODE4LIB  May 2011

CODE4LIB May 2011

Subject:

Re: wikipedia/author disambiguation

From:

Thomas Berger <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Tue, 31 May 2011 18:48:28 +0200

Content-Type:

text/plain

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Parts/Attachments

text/plain (82 lines)

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Am 31.05.2011 17:55, schrieb Jonathan Rochkind:

> VIAF one works great, taking me to the human readable VIAF page.
> 
> PND one seems to work too, taking me to the authority page in the Deutsche
> National Bibliothek.
> 
> The LCCN one does not work. Tries to take me to:
> http://errol.oclc.org/laf/n79021614.html
> 
> Which results in an HTTP 500 error from the OCLC server.
> 
> Since this template apparently generates a URL to an OCLC service (rather than
> LC? I guess maybe LC itself doesn't have the right permalinks?), I think that
> OCLC probably ought to fix this. If the template is not creating the right URL,
> I guess you've got to work with wikipedia to fix it. Or fix your end to accept
> those URLs properly.

These links IIRC are the same ones VIAF employs to link to a
representation of the NAF records and they are broken for about 6 weeks
now.

To my knowledge the {{Authority Control}} Metadata in the English Wikipedia
are inspired from a similar effort in the German Wikipedia, which since
2005 notes authority nunbers for persons: They started with PND numbers
(Personennormdatei, the Collaborative Authority File for german and
austrian libraries) and were backed by an agreement with the German
National Library (Deutsche Nationalbibliothek, DNB) to provide mutual
links from authority Records to Wikipedia and vice versa.

Currently about 150.000 articles on wikipedia.de carry the associated
PND number, many of them also LoC-NA and VIAF numbers:

http://de.wikipedia.org/wiki/Vorlage:NORMDATENCOUNT

The links from portal.d-nb.de to wikipedia.de are not implemented
by 856-like manifest URLs in the authority records nor some kind of
"wikipedia numbers" as additional identification numbers. Rather
wikipedia.de publishes on a daily base a trivial concordance table
relating extracted PND numbers to the corresponding wikipedia lemma.
The DNB portal in turn incorporates this table and generates the
respective links on the fly whenever an affected authority record is
displayed.

Some biographical dictionaries, regional bibliographies, classical
OPACs and historical projects picked up this mechanism and published
their own tables of this kind, all using the PND identification number
as common system of reference. This (as such a low-tech approach
to the semantic web) was coined "PND-BEACON":

< http://de.wikipedia.org/wiki/Wikipedia:PND/BEACON >
(english version: < http://meta.wikimedia.org/wiki/BEACON >)

CKAN data package: < http://ckan.net/package/pndbeacon >

Publishing such beacon files presupposes that your data already
carries more-than-local identification numbers. With this
precondition met, the gain is twofold:

- - publishing a beacon file may direct vistors from the incorporators
  of the file to your catalogue

- - the existing authority numbers in your cataloge enable you to
  relate (via their beacon files) to other web ressources, thus
  rounding up the data you present.

Thomas Berger
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