Peter, the methodological details (about the sampling, the robot, etc.) are here:
Gargouri, Y., Hajjem, C., Lariviere, V., Gingras, Y., Brody, T., Carr, L. and Harnad, S. (2010) Self-Selected or Mandated, Open Access Increases Citation Impact for Higher Quality Research. PLOS ONE 5 (10) e13636 http://eprints.ecs.soton.ac.uk/18493/ and here Gargouri, Y., Hajjem, C., Lariviere, V., Gingras, Y., Carr, L. and Harnad, S. (2012) Green and Gold Open Access Percentages and Growth, by Discipline http://arxiv.org/abs/1206.3664 Stevan On 2012-07-16, at 9:20 AM, Peter Murray-Rust wrote: > Thanks very much Alma, > This is very useful - I have some more questions, and would be grateful for > answers if you can... > > > > The data are from Yassine Gargouri (who has used the methodology he > previously used, which consists of trawling the web for openly accessible > full-texts and comparing the number of those with the papers in Web of > Science, which is not a perfect, but a reasonable measure of the ‘universe’ > for UK researchers). > > Is this published anywhere (formally or informally) such that we can > understand the details? > * How does he or Google know that the full-text is "openly accessible"? Is > this by trying to read it or is there a Google flag for openly accessible? > > Previously, Yassine has done this only on a global basis, but this time he > has looked for papers with at least one UK author. > > * How is this done? Does *he* analyze the author affiliations or does he get > them from WoS? > > * is there an open electronic list of the publications (and their funders) so > that I can access them > > He used Google to search for the papers. > > More questions: > * Google or GoogleScholar? [Apparently they can give very different answers] > > Assuming it was GoogleScholar. > * How was the subject classification done? > > I can see one method how the "Gold" access papers were retrieved - by mapping > the Journal onto known Gold journals (sic). (I cannot see how hybrid gold > were easily measured but the numbers are probably too small to worry about > statistically) > > I cannot see the next phase but I can conjecture. More questions: > * did he use his/Google results to compare with WoS? > > * how did he determine that the paper was Green? Almost by definition this > has to be somewhere other than the publisher's site. [so the paper needs > another search for the paper mounted somewhere OTHER than the publisher. > > * does he then have a system to determine whether the paper is readable (not > all papers in repositories are readable, as we have seen). > > If he has such as system then it would seem to answer the key question: > * if I find a paper on a publisher's site can I find a free-as-in-beer copy > somewhere else on the web? > > If he can really answer that question then is his system openly available? > > P. > > _______________________________________________ > GOAL mailing list > [email protected] > http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal > > > > > -- > Peter Murray-Rust > Reader in Molecular Informatics > Unilever Centre, Dep. Of Chemistry > University of Cambridge > CB2 1EW, UK > +44-1223-763069 > _______________________________________________ > GOAL mailing list > [email protected] > http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal
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