On Sat, 9 Feb 2008, Leslie Carr wrote: > On 9 Feb 2008, at 11:35, Thomas Krichel wrote: > > > Yeah, but E-LIS is really small, looking at it today it tells > > us it has 7253 documents. That IRs struggle to compete with that > > sort of effort demonstrates that IRs don't populate, even in the > > presence of mandates. No amount of Driver summits will change this. > > If you go to ROAR you will find 62 "Institutional or Departmental" > repositories that are bigger than E-LIS (that's out of a total set of > 562). Admittedly that's just 1 in 8 institutional repositories pulling > something approximating to their weight, but then there are only 89 > subject repositories listed in total. > > It's not a done deal by any means, but I think that the trend is > looking a lot more positive than you suggest .
It's even a shade more subtle than that: Not only is comparing IRs to CRs comparing apples to fruit, but the genus and species have different respective denominators to answer to! (1) Obviously, we would not be surprised if Harvard (with an output of, say, 10K journal articles yearly) had a bigger IR than Mercer County Community College (with a yearly output of 100 journal articles). (2) But we would be surprised if the yearly deposit rate for Harvard's 10K annual articles was 1% and the yearly deposit rate for MCC was 90%, even if that meant that Harvard had 100 annual deposits and MCC had only 90. (3) So the right unit of comparison is not total repository content, of course, but proportion of annual output self-archived. (4) The comparison is more revealing (and exacting) when we compare CRs with IRs: How to compare Harvard's IR to the CR for Biomedicine (PubMed Central). (5) We are not surprised if the total annual worldwide (or even just US) output in Biomedicine exceeds the total annual output of Harvard in all disciplines. (6) Again, the valid unit of comparison is total annual-deposits divided by annual-output, and for a discipline, total annual output means all articles published that year in that disciple, originating from all of the world's research institutions. And that (if you needed one) is yet another reason why direct IR deposit is the systematic way to generate 100% OA. It's apples/apples vs fruit/fruit -- and all the fruit, hence all the apples, oranges, etc. are sown, grown and stocked locally. It's from the local repositories that the local produce can then be "harvested" (the limitations of a mixed metaphor!) to some central site, if desired, or just straight to an indexer like Google Scholar or Citebase. The moral of the story is that we have to normalize IR/IR, IR/CR and CR/CR comparisons -- and that absolute, non-normalized totals are not meaningless, but especially misleading about CRs, which give a spurious impression of magnitude simply by omitting their even-larger magnitude denominators! Stevan Harnad AMERICAN SCIENTIST OPEN ACCESS FORUM: http://amsci-forum.amsci.org/archives/American-Scientist-Open-Access-Forum.h tml http://www.ecs.soton.ac.uk/~harnad/Hypermail/Amsci/ UNIVERSITIES and RESEARCH FUNDERS: If you have adopted or plan to adopt a policy of providing Open Access to your own research article output, please describe your policy at: http://www.eprints.org/signup/sign.php http://openaccess.eprints.org/index.php?/archives/71-guid.html http://openaccess.eprints.org/index.php?/archives/136-guid.html OPEN-ACCESS-PROVISION POLICY: BOAI-1 ("Green"): Publish your article in a suitable toll-access journal http://romeo.eprints.org/ OR BOAI-2 ("Gold"): Publish your article in an open-access journal if/when a suitable one exists. http://www.doaj.org/ AND in BOTH cases self-archive a supplementary version of your article in your own institutional repository. http://www.eprints.org/self-faq/ http://archives.eprints.org/ http://openaccess.eprints.org/