The Interface between the Science Citation Index and the Social Science Citation Index

[Loet Leydesdorff]

Yes, Kevin, yours and Kathy's work goes far beyond my efforts because you
combined the Citation Indices themselves, while I only combined the Journal
Citation Reports of the two indices. However, my main result is the list of
7000+ journals on the web (at http://www.leydesdorff.net/jcr04/cited ) where
everybody can find the Pajek files for the visualization of the vector space
in the citation environment of each journal. You may wish to take a look.

With best wishes,

Loet

________________________________
Loet Leydesdorff
Amsterdam School of Communications Research (ASCoR),
Kloveniersburgwal 48, 1012 CX Amsterdam.
Tel.: +31-20- 525 6598; fax: +31-20- 525 3681;
loet at leydesdorff.net ; http://www.leydesdorff.net/






  _____

From: ASIS&T Special Interest Group on Metrics
[mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Boyack, Kevin W
Sent: Monday, February 13, 2006 7:11 PM
To: SIGMETRICS at LISTSERV.UTK.EDU
Subject: Re: [SIGMETRICS] The Interface between the Science Citation Index
and the Social Science Citation Index


For those of you that are interested in more work featuring analysis of the
combined SCIE/SSCI, I have recently had two papers published (jointly with
Richard Klavans and Katy Borner) that explore the structure of science from
the combined databases, along with comparison of different similarity
measures. Where Loet's work (which started this thread) explores the
interface, our work looks at the structural whole.

Boyack, Klavans, Borner (2005). Mapping the backbone of science.
Scientometrics 64(3), 351-374.

Klavans, Boyack (2006). Identifying a better measure of relatedness for
mapping science. JASIST 57(2), 251-263.

I can supply PDFs to those who need them.

Kevin Boyack
Sandia National Laboratories
Albuquerque, NM  87185
(505) 844-7556
kboyack at sandia.gov

  _____

From: ASIS&T Special Interest Group on Metrics
[mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of David Goodman
Sent: Friday, February 10, 2006 4:35 PM
To: SIGMETRICS at LISTSERV.UTK.EDU
Subject: Re: [SIGMETRICS] The Interface between the Science Citation Index
and the Social Science Citation Index



This has been a nuisance to users for years,
especially for bibliometric work where it means everything
has to be done twice--
and I hope your article will encourage them to
combine them. Just as they combine WoK.

Dr. David Goodman
Associate Professor
Palmer School of Library and Information Science
Long Island University
and formerly
Princeton University Library

dgoodman at princeton.edu



Dr. David Goodman
Associate Professor
Palmer School of Library and Information Science
Long Island University
and formerly
Princeton University Library

dgoodman at liu.edu

----- Original Message -----
From: Loet Leydesdorff <loet at LEYDESDORFF.NET>
Date: Friday, February 10, 2006 10:50 am
Subject: [SIGMETRICS] The Interface between the Science Citation Index and
the Social Science Citation Index
To: SIGMETRICS at LISTSERV.UTK.EDU

> Adminstrative info for SIGMETRICS (for example unsubscribe):
> http://web.utk.edu/~gwhitney/sigmetrics.html
>
> Mapping  <http://www.leydesdorff.net/sci_sosci/index.htm>
> Interdisciplinarity at the Interfaces between
>
> the  <http://www.leydesdorff.net/sci_sosci/index.htm> Science
> Citation Index
> and the Social Science Citation Index
>
> <http://www.leydesdorff.net/sci_sosci/sci+sosci.pdf> pdf-version
>
>
>
> The two Journal Citation Reports of the Science Citation Index
> 2004 and the
> Social Science Citation Index 2004 were combined in order to
> analyze and map
> journals and specialties at the edges and in the overlap between
> the two
> databases. For journals which belong to the overlap (e.g.,
> Scientometrics),the merger mainly enriches our insight into  the
> structure which can be
> obtained from the two databases separately; but in the case of
> scientificjournals which are more marginal in either database, the
> combination can
> provide a new perspective on the position and function of these
> journals(e.g., Environment and Planning B-Planning and Design).
> The combined
> database additionally enables us to map citation environments in
> terms of
> the various specialties comprehensively. Using the vector-space model,
> visualizations are provided for specialties that are parts of the
> overlap(information science, science & technology studies). On the
> basis of the
> resulting visualizations, "betweenness"-a measure from social network
> analysis-is suggested as an indicator for measuring the
> interdisciplinarityof journals.
>
>
> ** apologies for cross-postings
>
>  _____
>
> Loet Leydesdorff
> Amsterdam School of Communications Research (ASCoR)
> Kloveniersburgwal 48, 1012 CX Amsterdam
> Tel.: +31-20- 525 6598; fax: +31-20- 525 3681
> <mailto:loet at leydesdorff.net> loet at leydesdorff.net ;
> <http://www.leydesdorff.net/> http://www.leydesdorff.net/
>
>
> <http://www.leydesdorff.net/knbecon> The Knowledge-Based Economy:
> Modeled,Measured, and Simulated
> <http://www.universal-
> publishers.com/book.php?method=ISBN&book=1581126956>The Self-
> Organization of the Knowledge-Based Society;
> <http://www.universal-
> publishers.com/book.php?method=ISBN&book=1581126816>The Challenge
> of Scientometrics
>
>
>
>

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