About the Authors

Hamish Cunningham

hamish@gate.ac.uk

Affiliation Department of Computer Science, University of Sheffield, Sheffield, United Kingdom

Valentin Tablan

Affiliation Department of Computer Science, University of Sheffield, Sheffield, United Kingdom

Angus Roberts

Affiliation Department of Computer Science, University of Sheffield, Sheffield, United Kingdom

Kalina Bontcheva

Affiliation Department of Computer Science, University of Sheffield, Sheffield, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HC VT AR KB. Performed the experiments: HC VT AR KB. Analyzed the data: HC VT AR KB. Contributed reagents/materials/analysis tools: HC VT AR KB. Wrote the paper: HC VT AR KB.