Using metadata for the interlinking of digitized mathematics

Saturday, December 9, 2006 - 10:15am - 10:45am
EE/CS 3-180
Thomas Fischer (State and University Library Goettingen)
This is work related to communication with Thierry Bouche (Cellule MathDoc
and Institut Fourier, Grenoble) and David Ruddy (Cornell University

For the access to mathematical research literature, mathematicians usually
employ review journals such as Mathematical Reviews and Zentralblatt der
Mathematik. These provide a rich network of interlinked (via references and
citations) mathematical sources. To make this even more useful, the review
journals could be used as hubs for the linkage not only to printed and born
digital material, but also to digitized versions of this literature.
An examination of the currently available metadata indicates not only that
the present formats do not identify the mathematical literature with sufficient
precision, but also that the metadata formats in use are inadequate, unless overloaded
with complex syntactical schemes. A richer and more rigid scheme for the
expression of the metadata is needed, and different approaches are investigated:

  • The development of a Dublin Core based Application Profile, using qualified
    Dublin Core and some additional fields to encapsulate the required

  • The development of a specialized metadata scheme based on one in use
    by the French NUMDAM project.

  • A Dublin Core format based on the Dublin Core Abstract Model, using
    the new DC-XML specification.

  • The usage of OpenURL as a method of reference.

The obvious choice for exchanging these metadata is the OAI Protocol for
Metadata Harvesting, and several of the libraries and projects involved in digitizing
mathematics have begun to expose metadata records using OAI-PMH,
offering several metadata formats, including Dublin Core. The talk will investigate
the options to enhance this form of communication to establish a working
network of interlinked mathematics and present the state of interlinkage at the
SUB Göttingen, using the extensive Mathematica collection of digitized mathematics.