About the Authors

Michael J. Bell

Affiliation School of Computing Science, Newcastle University, Newcastle upon Tyne, United Kingdom

Matthew Collison

Affiliation School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle upon Tyne, United Kingdom

Phillip Lord

phillip.lord@newcastle.ac.uk

Affiliation School of Computing Science, Newcastle University, Newcastle upon Tyne, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MJB PL. Performed the experiments: MJB. Analyzed the data: MJB MC. Wrote the paper: MJB MC PL.