[Oa-italia] PLOS one pubblica un report su metodo matematico per valutare le riviste scientifiche
Paola Gargiulo
paola.gargiulo a caspur.it
Sab 1 Mar 2008 13:33:12 CET
Vi inoltro la notizia trovata su
http://www.knowledgespeak.com/
Paola
*********************************************************************
PLoS ONE publishes report on mathematical method to rank scientific
journals - 29 Feb 2008
A team of researchers from Northwestern University has reportedly
developed a mathematical method to rank scientific journals according to
their quality. This approach is projected to help scientists locate
high-impact research papers to read and to cite in their own papers.
The team analysed the citation data of nearly 23 million papers that
appeared in 2,267 journals representing 200 academic fields and that
spanned the years 1955- 2006. Their analysis produced 200 separate
tables of journal rankings by field. The results, including all the
rankings, is published online in PLoS ONE, an international,
peer-reviewed, open access, online journal published by the Public
Library of Science.
The study was led by Luís A. Nunes Amaral, associate professor of
chemical and biological engineering in Northwestern’s McCormick School
of Engineering and Applied Science. Amaral and his team developed
methods to look at the enormous amount of published papers and to make
sense of them. For each of the 2,267 journals, they charted the
citations each paper received across a certain span of years and then
developed a model of that data, which allowed the researchers to compare
journals. The researchers’ model produced bell curves for the
distribution of “quality” of the papers published in each journal. For
each field, all the bell curves for the journals then were compared,
which resulted in the journal rankings.
The researchers found that the time scale for a published paper’s
complete accumulation of citations -- a gauge for determining the full
impact of the paper - can range from less than one year to 26 years,
depending on the journal. Using their new method, the researchers can
estimate the total number of citations a paper will get in the future
and thus determine - right now - the paper’s likely impact in its field.
This is the kind of information university administrators and funding
agencies should find helpful when they are evaluating faculty members
for tenure and researchers for grant awards.
--
Paola Gargiulo
Settore Automazione Biblioteche
C.A.S.P.U.R
Via dei Tizii, 6b
00185 Roma - ITALY
Tel. ++39-06-44486-605
Fax ++39-06-4957083
p.gargiulo a caspur.it
Maggiori informazioni sulla lista
OA-Italia