Studying the Emerging Global Brain: Analyzing and Visualizing the Impact of Co-Authorship Teams
Katy B\"orner, Luca Dall'Asta, Weimao Ke, Alessandro Vespignani

TL;DR
This paper presents new methods to analyze and visualize the impact of co-authorship networks in scientific fields, revealing a trend towards increased global collaboration over time.
Contribution
It introduces a weighted graph representation of author-paper networks and applies novel centrality and entropy measures to study the evolution of scientific collaboration.
Findings
Growth of co-authorship clusters over time
Correlation between team size and citation impact
Increasing global cooperation in scientific research
Abstract
This paper introduces a suite of approaches and measures to study the impact of co-authorship teams based on the number of publications and their citations on a local and global scale. In particular, we present a novel weighted graph representation that encodes coupled author-paper networks as a weighted co-authorship graph. This weighted graph representation is applied to a dataset that captures the emergence of a new field of science and comprises 614 papers published by 1,036 unique authors between 1974 and 2004. In order to characterize the properties and evolution of this field we first use four different measures of centrality to identify the impact of authors. A global statistical analysis is performed to characterize the distribution of paper production and paper citations and its correlation with the co-authorship team size. The size of co-authorship clusters over time is…
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Taxonomy
TopicsComplex Network Analysis Techniques · scientometrics and bibliometrics research · Bioinformatics and Genomic Networks
