About the Authors

Daniele Quercia

Roles Conceptualization, Methodology, Supervision, Writing – original draft, Writing – review & editing

quercia@cantab.net

Affiliation Nokia Bell Labs, Cambridge, United Kingdom

Luca Maria Aiello

Roles Conceptualization, Data curation, Methodology, Writing – review & editing

Affiliation Nokia Bell Labs, Cambridge, United Kingdom

Rossano Schifanella

Roles Conceptualization, Data curation, Methodology, Visualization

Affiliation University of Turin, Turin, Italy

Competing Interests

The funder (Nokia Bell Labs) provided support in the form of salaries for authors DQ and LMA but this does not alter our adherence to PLOS ONE policies on sharing data and materials.