helwall M, Wilkinson D "Finding similar academic Web sites with links, bibliometric couplings and colinks" Information Processing & Management 40(3):515-526 May 2004

[Eugene Garfield]

Mike Thelwall  : m.thelwall at wiv.ac.uk
David Wilkinson: d.wilkinson at wlv.ac.uk

TITLE    Finding similar academic Web sites with links, bibliometric
         couplings and colinks
AUTHOR   Thelwall M, Wilkinson D
JOURNAL  INFORMATION PROCESSING & MANAGEMENT 40 (3): 515-526 MAY 2004


Document type: Article     Language: English     Cited References: 49
Times Cited: 0

Abstract:
A common task in both Webmetrics and Web information retrieval is to
identify a set of Web pages or sites that are similar in content. In this
paper we assess the extent to which links, colinks and couplings can be used
to identify similar Web sites. As an experiment, a random sample of 500
pairs of domains from the UK academic Web were taken and human assessments
of site similarity, based upon content type, were compared against ratings
for the three concepts. The results show that using a combination of all
three gives the highest probability of identifying similar sites, but
surprisingly this was only a marginal improvement over using links alone.
Another unexpected result was that high values for either colink counts or
couplings were associated with only a small increased likelihood of
similarity. The principal advantage of using couplings and colinks was found
to be greater coverage in terms of a much larger number of pairs of sites
being connected by these measures, instead of increased probability of
similarity. In information retrieval terminology, this is improved recall
rather than improved precision. (C) 2003 Elsevier Ltd. All rights reserved.

Author Keywords:
document clustering, webmetrics, Web information retrieval

KeyWords Plus:
SCIENCE, DEPARTMENTS, INFORMATION, COCITATION, IMPACT

Addresses:
Thelwall M, Wolverhampton Univ, Sch Comp & Informat Technol, Wulfruna St,
Wolverhampton WV1 1SB, England
Wolverhampton Univ, Sch Comp & Informat Technol, Wolverhampton WV1 1SB, England

Publisher:
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON,
OXFORD OX5 1GB, ENGLAND

IDS Number:
818PX

ISSN:
0306-4573

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