About the Authors

Lin Zhang

Affiliation School of Software Engineering, Tongji University, Shanghai, China

Zhixuan Ding

Affiliation School of Software Engineering, Tongji University, Shanghai, China

Hongyu Li

Affiliation School of Software Engineering, Tongji University, Shanghai, China

Ying Shen

yingshen@tongji.edu.cn

Affiliation School of Software Engineering, Tongji University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LZ ZD. Performed the experiments: LZ ZD YS. Analyzed the data: LZ ZD HL. Contributed reagents/materials/analysis tools: LZ ZD HL YS. Wrote the paper: LZ YS ZD.