introduction to webometrics(13 mar2011)
TRANSCRIPT
Introduction to WebometricsQuantitative Web Research for the Social Sciences
• 이 슬라이드는 Mike Thelwall 의 ‘ Introduction to Webometrics’ 의 1 장을 정리한 자료입니다 .
Myunggoon Choi영남대학교 언론정보학과[email protected]
http://www.webometrics.info
Cybermetrics Lab, A research group of the Spanish National Research Council (CSIC)
Design and Weighting of Indicators
a) The volume of the Web contents (number of
web pages and files) and b) the visibility and im-
pact of these web publications according to the
number of external inlinks (site citations) they
received
Design and Weighting of Indicators
Webometrics Rank
Visibility(External Inlinks)
50%
Size(Web Pages) 20%
Rich Files 15%
Scholar 15%
Yeungnam University
1336 / 12000 universities
Contents
History and Definition
Aspects of Web
New and Old Problem (Web-Based Phenomena
and Offline Phenomena Reflected Online
1.
2.
3.
History and Definition1
Definition
The study of web-based phenomena using
quantitative techniques and drawing upon in-
formetric methods.
(Björneborn and Ingwersen, 2004)
Informetric method
The production, dissemination and use of all
forms of information, regardless of its form or
origin.
Ex. Citation analysis
History
Being coined in print by an article, which identi-
fied the web as an important source for measur-
ing documents and information
(Almind and Ingwersen, 1997)
- The term
History
Web search engine owned by Yahoo! and
launched on 15 December 1995
Providing large-scale link measurements
A study in each Scandinavian country
- AltaVista
A study in each Scandinavian country
A study that included a count of the number of
web pages in each Scandinavian country that
linked to the pages of each other Scanadina-
vian country
(Ingwersen, 1998)
1. Link analysis
2. The reliability and coverage of search engines
3. Changes in the content of the web or individ-
ual collections of web pages
(Bar-Ilan, 2004)
Three types of Webometrics(Web-based measurement research)
a) Arising in parallel with the development of We-
bometrics , b) Being used to describe the same
research as webometrics and c) Preferred in
Spain
Cybermetrics
Being resolved by allowing cybermetrics to be
more general – referring to non-web Internet re-
search, such as email or newsgroup studies, in
addition to web research
(Björneborn and Ingwersen, 2004)
The difference between two terms
Aspects of Web2
Webometrics is concerned with measuring as-
pects of the web:
a) web sites, b) web pages, c) parts of web pages,
d) words in web pages, e) hyperlinks, f) web
search engine results.
Huge scale
1. The number of web sites
2. The number of web pages
3. The number of blogs
Small scale
1. The number of web sites in Korea
2. The number of web pages in the CNN
3. The number of blogs mentioning Barack
Obama before the 2008 presidential campaign
New and Old Problem3
New Problem
1. Election web sites
2. Online academic communication
3. Bloggers as amateur journalists
4. Social networking
- Web-Based Phenomena
Old Problem
1. The impact of spread of ideas
2. Public opinion
3. Informal scholarly communication
- Offline Phenomena Reflected Online
Case★
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