Use of co-word analysis and bibliometric maps for ... · •Denmark 2050 –future scenarios –The...
Transcript of Use of co-word analysis and bibliometric maps for ... · •Denmark 2050 –future scenarios –The...
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Use of co-word analysis and bibliometric maps for detecting mega
trends in the green transition of the urban areas?
The 19th Nordic Workshop on Bibliometrics and Research Policy
29.09.2014
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Slide 2
Project background and objectives
• Denmark 2050 – future scenarios – The aim of the project was to form scenarios for the future
development of Danish cities towards a green transition
– Two approaches were adopted: a) identification of events, reforms and social changes b) a major review of the themes in the international scientific literature
• Four scenarios were developed: i) State of Green, ii) Green Grid, iii) Guerilla Green and iv) State of Stuck
• But how good are the predictions that we can build using scientific literature?
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Slide 3
Co-word analysis
• Using co-word analysis for this is no way a new
idea, quite a few studies discuss the pro and
cons of co-word analysis and even the
methodology are up for debate
• The forecast of future research themes is
dependent on the time-span and the quality of
data determine the value of predictions based
on previous research. (Glänzel, 2012)
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Zhang et al 2012 PLOS one, Neff et al Scientometrics vol 8 No 3, Leydesdorff 1997 Journal of the American
Society for Information Science, Whittaker 1992 Scientometrics, Jan van Eck 2009, JASIST
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Slide 4
Co-word analysis
• Data:
– Scopus publication data is collected for the intersection of the urban environment and the five themes; Environment, Transport, Economy, Energy and Quality of life
– The data contains in total 160.000+ publications covering 35 years (1980 – 2013)
• Methodology:
– The analysis is based on standardized author and indexed keywords
– The keywords are connected by the use of the Jaccard index
– Based on which four maps were generated
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Slide 5
Mapping 1980 to 1989
• In the 80’s urban
planning is not a major
research theme
• The focus of this
decade is on social
aspects of living in the
city
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Source: DAMVAD 2014, based on Scopus
Node colors: Coloring is random, but nodes with equal coloring belongs
to clusters of keywords most frequently used together. Node size:
Number of publications and tie size: Strength of the Jaccard index
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Slide 6
Mapping 1990 - 1999
• Urban planning in the 90’s is rather connected to other research areas related to environmental impact and a the sub-themes of “water quality” and “air pollution”
• In general the research makes a shift in this period towards environment and pollution oriented themes
Source: DAMVAD 2014, based on Scopus
Node colors: Coloring is random, but nodes with equal coloring belongs
to clusters of keywords most frequently used together. Node size:
Number of publications and tie size: Strength of the Jaccard index
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Slide 7
Mapping 2000-2009
• Urban planning in the 00’s is separate research theme (1 of 3) and continues to be related to environmental issues but focus has shifted towards sustainability
• Overall the research on the urban areas is divided between air and water pollution
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Source: DAMVAD 2014, based on Scopus
Node colors: Coloring is random, but nodes with equal coloring belongs
to clusters of keywords most frequently used together. Node size:
Number of publications and tie size: Strength of the Jaccard index
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Slide 8
Mapping 2010-2013
• Urban planning has in the latest year been even more focused on sustainability related to urban development
• Research on air and water pollution is prominent in this decade too.
• The transportation theme has in the latest year re-emerged
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Source: DAMVAD 2014, based on Scopus
Node colors: Coloring is random, but nodes with equal coloring belongs
to clusters of keywords most frequently used together. Node size:
Number of publications and tie size: Strength of the Jaccard index
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Slide 9
Theme volume and quality
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Source: DAMVAD 2014, based on Scopus
Publication volume Citation rates
0
1000
2000
3000
4000
5000
6000
7000
8000
1980-1989 1990-1999 2000-2009 2010-2013
Urban planning - No of publ
Sustainable development - No of Publ
0
0,2
0,4
0,6
0,8
1
1,2
1980-1989 1990-1999 2000-2009 2010-2013
Urban planning - Norm Cit/publ
Sustainable development - Norm Cit/publ
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Slide 10
Preliminary results and conclusions
• Evolution of research in different subject areas and the patterns of their interaction is modest in the 80’s and 90’s later an increasing number of new sub-directions of research emerge
• Development of volume and citation rates in the identified research themes seams to be aligned with the size and distribution of the themes, but the methodology needs refinements
• In line with the previous research, we propose that it is possible to use co-words analysis in combination with publication activity and citation impact to identify themes within a research area, but
• Further analysis is required to fully understand the nature of the emerging research themes e.g. collaboration patterns, co-citation analysis and the like to establish the connection back to the events, reforms and social changes seen in the society in order to be able to loop forward in to the scenarios
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