About the Authors

Tim Phillips

Ptjp2749@aol.com

Affiliation Independent Researcher, Birmingham, United Kingdom

Jiawei Li

Affiliation Automated Scheduling, Optimisation and Planning (ASAP) research group, School of Computer Science, University of Nottingham, Nottingham, United Kingdom

Graham Kendall

Affiliations Automated Scheduling, Optimisation and Planning (ASAP) research group, School of Computer Science, University of Nottingham, Nottingham, United Kingdom, University of Nottingham Malaysia Campus, Broga, Malaysia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TP. Performed the experiments: JL GK. Analyzed the data: TP JL GK. Contributed reagents/materials/analysis tools: TP JL GK. Wrote the paper: TP.