BASE (Bielefeld Academic Search Engine,
http://www.base-search.net/)
indexes OAI metadata and you can search OAI repositories from many
countries (check collections in "advanced search" and the list of content
sources,
http://base.ub.uni-bielefeld.de/about_sources_english.html).
In the very recently published 3rd release, BASE also links directly from
single hit records to Google Scholar, in order to re-use the "article citation"
and "versions" functionalities.
Norbert Lossau
Am 9 Mar 2006 um 13:12 hat Stevan Harnad geschrieben:
> > From: Maryanne Kennan <maryanne.kennan_at_unsw.edu.au>
> > Date: Thu, 9 Mar 2006 18:25:54 +1100
> >
> > Hi all, I am new to all this, so please excuse me if these are dumb
> > questions... Questions: don't the external search engines harvest
> > the metadata which may include entries from the taxonomies of the
> > repositories? So if a researcher is searching via say Google or
> > Google Scholar, they may be (knowingly or unknowingly) using words
> > from the subject index/taxonomy rather than words from the full
> > text...? So perhaps the work of the repository manager is used in
> > ways other than those initially imagined? cheers mary Anne
> >
> > Graduate research student
> > School of Information Systems, Technology and Management
> > Faculty of Commerce and Economics
> > The University of New South Wales
> > NSW 2052 AUSTRALIA
> > Email: maryanne.kennan_at_unsw.edu.au
> > Telephone: 61 2 9385 4472
>
> Good question. Someone more technical than me will have to reply whether
> google also indexes on the metadata and not just the full-text. But even
> if it does, it is almost certain that (1) the index terms are redundant
> with the full text and (2) cannot now be searched-on to the exclusion of
> the full text. So any subject terms therein are not being searched *as*
> subject terms, but just as a (tiny) subset of the full text.
>
> I am certain, though, that if and when the OAI-compliant OA corpus grows
> from its current sparse 15% to something closer to 100% of the target
> corpus (OA versions of the 2.5 million annual articles published in the
> 24,000 journals), then google and google scholar *will* use the OAI
> metadata for search, and not only the full-text. (And if they don't, the
> OAI search engines certainly will, and they will be the preferred search
> engines for searching and navigating the OA/OAI corpus.)
>
> On that happy day, there *will* be searchable subject taxonomies
> available too, but they will not have been hand-entered at deposit by the
> poor author (or the author's proxy assigns) into a vast prefabricated
> menu! They will be automatically generated centrally by AI processing
> of the full texts after the all-important fact (i.e., their local
> depositing itself)!
>
> Stevan Harnad
Received on Thu Mar 09 2006 - 15:54:07 GMT