Newman MEJ "The structure of scientific collaboration networks" Proceedings of the National Academy of Sciences of the United States of America 98(2): 404-409 January 16 2001

[Eugene Garfield]

E-mail: mark at santafe.edu

TITLE    The structure of scientific collaboration networks
AUTHOR   Newman MEJ
JOURNAL  PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF
         THE UNITED STATES OF AMERICA 98 (2): 404-409 JAN 16 2001

Document type: Article     Language: English     Cited References: 30
Times Cited: 112      Explanation

Abstract:
The structure of scientific collaboration networks is investigated. Two
scientists are considered connected if they have authored a paper together
and explicit networks of such connections are constructed by using data
drawn from a number of databases, including MEDLINE (biomedical research),
the Los Alamos e-Print Archive (physics), and NCSTRL (computer science). I
show that these collaboration networks form "small worlds," in which
randomly chosen pairs of scientists are typically separated by only a short
path of intermediate acquaintances. I further give results for mean and
distribution of numbers of collaborators of authors, demonstrate the
presence of clustering in the networks, and highlight a number of apparent
differences in the patterns of collaboration between the fields studied.






KeyWords Plus:
SMALL-WORLD NETWORKS, WEB

Addresses:
Newman MEJ, Santa Fe Inst, 1399 Hyde Pk Rd, Santa Fe, NM 87501 USA
Santa Fe Inst, Santa Fe, NM 87501 USA

Publisher:
NATL ACAD SCIENCES, 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA

IDS Number:
393TG

ISSN:
0027-8424

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ALBERT R              NATURE                       401       130      1999
 AMARAL LAN            P NATL ACAD SCI USA           97     11149      2000
 BARABASI AL           SCIENCE                      286       509      1999
 BERNARD HR            ETHNOLOGY                     27       155      1988
 BOLLOBAS B            RANDOM GRAPHS                                   1985
 BRODER A              COMPUT NETW                   33       309      2000
 CRANE D               INVISIBLE COLLEGES                              1972
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 EGGHE L               INTRO INFORMETRICS                              1990
 FARARO TJ             STUDY BIASED FRIENDS                            1964
 FOSTER CC             BEHAV SCI                      8        56      1963
 GROSSMAN JW           C NUMERANTIUM                108       129      1995
 GUARE J               6 DEGREES SEPARATION                            1990
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 MOODY J               000749 SANT FE I                                2000
 NEWMAN MEJ            CONDMAT0007235                                  2000
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 PERSSON O             SCIENTOMETRICS                33       351      1995
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 SCOTT J               SOCIAL NETWORK ANAL                             2000
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 VANRAAN AFJ           NATURE                       347       626      1990
 WASSERMAN S           SOCIAL NETWORK ANAL                             1994
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 WATTS DJ              SMALL WORLDS                                    1999
 WHITE HC              SOC FORCES                    49       259      1970