About the Authors

Huan-Kai Peng

pumbaapeng@gmail.com

Affiliation Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America

Hao-Chih Lee

Affiliation Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America

Jia-Yu Pan

Affiliation Google Inc., Mountain View, California, United States of America

Radu Marculescu

Affiliation Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America

Competing Interests

The employment of JP by Google does not alter the authors’ adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HP HL JP RM. Performed the experiments: HP. Analyzed the data: HP HL. Contributed reagents/materials/analysis tools: HP HL. Wrote the paper: HP HL JP RM.