About the Authors

Qi Xuan

crestxq@hotmail.com

Affiliations Department of Automation, Zhejiang University of Technology, Hangzhou, China, Department of Computer Science, University of California Davis, Davis, CA, United States of America

Premkumar Devanbu

Affiliation Department of Computer Science, University of California Davis, Davis, CA, United States of America

Vladimir Filkov

Affiliation Department of Computer Science, University of California Davis, Davis, CA, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: QX PD VF. Performed the experiments: QX. Analyzed the data: QX. Wrote the paper: QX PD VF.