The shape of collaborations.

Published in EPJ Data Science, 2017

Patania, A., Petri, G., & Vaccarino, F. (2017). "The shape of collaborations." EPJ Data Science. 6(1), 18.

The structure of scientific collaborations has been the object of intense study both for its importance for innovation and scientific advancement, and as a model system for social group coordination and formation thanks to the availability of authorship data. Over the last years, complex networks approach to this problem have yielded important insights and shaped our understanding of scientific communities. In this paper we propose to complement the picture provided by network tools with that coming from using simplicial descriptions of publications and the corresponding topological methods. We show that it is natural to extend the concept of triadic closure to simplicial complexes and show the presence of strong simplicial closure.

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