Re: Higher rate of citation

From: Jim Till <till_at_UHNRES.UTORONTO.CA>
Date: Sat, 30 Nov 2002 08:15:39 -0500

My thanks to those who pointed to Steve Lawrence's work, based on
conference articles in computer science and related disciplines:
Online or Invisible?, Steve Lawrence, NEC Research Institute

An edited version appears in: Nature, Volume 411, Number 6837, p. 521,
Free online availability substantially increases a paper's impact.

An excerpt:

   "The results are dramatic, showing a clear correlation between the
   number of times an article is cited and the probability that the
   article is online. More highly cited articles, and more recent
   articles, are significantly more likely to be online, in computer
   science. The mean number of citations to offline articles is 2.74,
   and the mean number of citations to online articles is 7.03, an
   increase of 157%."

If these dramatic results (for conference articles in computer science and
related disciplines) could be confirmed in other unrelated disciplines,
then the evidence would become even more compelling.

Another question: has anyone obtained evidence that the impact factors for
open-access journals have increased across time, in comparison with
competing toll-access journals?

Jim Till
University of Toronto
Received on Sat Nov 30 2002 - 13:15:39 GMT

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