1. State Key Laboratory of Computer Science, Institute of Software Chinese Academy of Sciences Beijing China
2. University of Chinese Academy of Sciences China
3. Wuhan University Hubei Province China
4. Princeton University
5. Capital Normal University Beijing China
6. Dalian University of Technology China
7. School of Mechanical Engineering University of Science and Technology Beijing Beijing China
8. Computer Science Department Harvard University Boston USA
9. Computer Science Department State University of New York at Stony Brook New York USA