A Geographical Analysis of Knowledge Production in Computer Science Guilherme Vale Menezes Nivio Ziviani Alberto H. F. Laender Virgílio Almeida [email protected].
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A Geographical Analysis of Knowledge Production in Computer Science
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Summary
Introduction Data Gathering Results Conclusions
The Problem
Study the characteristics of researchers of Computer Science graduate programs
30 graduate programs in 3 geographic regions Build collaboration social networks based on
DBLP We use several metrics of collaboration social
networks Giant Component Clustering Coefficient
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Steps
Comparison between 30 programs in 3 regions Comparison between 30 Computer Science fields Study of the interrelationship between fields Temporal analysis of the 3 regions and the fields
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Collaboration Network
Author
Collaboration
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Collaborations in DCC-UFMG
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Collaborations in DCC-UFMG
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Summary
Introduction Data Gathering Results Conclusions
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Data Gathering
Part of our data came from Perfil-CC project Objective of Perfil-CC: study Brazilian Computer
Science graduate programs A set of 30 programs was chosen Focus: comparison with North American programs Results supported public policies Data gathered in June 2007
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Clustering Coefficient
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Clustering Coefficient
Clustering coefficient of the network is the average clustering coefficient of its vertexes
The clustering coefficient is a measure of transitivity
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Clustering Coefficient
Br Ca-US Fr-Sw-UK
0.30 0.20 0.38
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Computer Science Fields
Clustering Coefficient below the average (87%) for fields closely related to Mathematics Algorithms and Theory (79%) Operational Reaseach and Optimization (83%) Formalisms, Logics and Semantics (83%)
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Interrelationship between Fields
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Interrelationship between Fields
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Increase in the number of graduate programs in 1990s
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Increase in government funding
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
A shift in policy: more support to research groups instead of individuals
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Giant Component Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Edges vs Vertices
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Clustering Coefficient Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Clustering Coefficient Evolution
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Densification
Summary
Introduction Data Gathering Results Conclusions
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Conclusions Analysis of the characteristics of researchers of
Computer Science graduate programs
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Analysis of the characteristics of researchers of Computer Science graduate programs
Differences in the collaboration network of Br, Ca-US and Fr-Sw-UK Giant component Clustering coefficient
Conclusions
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Analysis of the characteristics of researchers of Computer Science graduate programs
Differences in the collaboration network of Br, Ca-US and Fr-Sw-UK Giant component Clustering coefficient
Smaller clustering coefficient for areas more closely related to Mathematics
Conclusions
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Conclusions
Fast growth of the giant component in Brazil
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Conclusions
Fast growth of the giant component in Brazil
The number of edges grows faster than the number of vertices in the three regions; faster growth in Ca-US
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
Conclusions
Fast growth of the giant component in Brazil
The number of edges grows faster than the number of vertices in the three regions; faster growth in Ca-US
Densification of emerging fields
LAboratory for Treating INformation (LATIN) – UFMG - Brazil
ReferencesLaender, Lucena, Maldonado, Souza e Silva, Ziviani. Assessing the Research and Education Quality of the Top Brazilian Graduate Programs. ACM SIGCSE Bulletin, 40:135-145, June 2008.
Martins, Gonçalves, Laender, Ziviani. Assessing the Quality of Scientific Conferences Based on Bibliographic Citations. Scientometrics, to appear. 2009.
LAboratory for Treating INformation (LATIN) – UFMG - Brazil