About the Authors

Yan Xu

Affiliations State Key Laboratory of Software Development Environment, Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beihang University, Beijing, China, Microsoft Research Asia, Beijing, China

Yining Wang

Affiliations Microsoft Research Asia, Beijing, China, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing, China

Jian-Tao Sun

Affiliation Microsoft Research Asia, Beijing, China

Jianwen Zhang

Affiliation Microsoft Research Asia, Beijing, China

Junichi Tsujii

Affiliation Microsoft Research Asia, Beijing, China

Eric Chang

eric.chang@microsoft.com

Affiliation Microsoft Research Asia, Beijing, China

Competing Interests

Funding was received from Microsoft Research Asia, but is not accompanied by any other relevant declarations relating to employment, consultancy, patents, products in development or marketed products, and does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: YX YW JTS JZ JT EC. Performed the experiments: YX YW JTS JZ JT EC. Analyzed the data: YX YW JTS JZ JT EC. Contributed reagents/materials/analysis tools: YX YW JTS JZ JT EC. Wrote the paper: YX YW JTS JZ JT EC.