Mr. Yingru Li is a Ph.D. student of the Chinese University of Hong Kong, Shenzhen, where he is co-advised by Tong Zhang (HKUST) and Tom Zhi-Quan Luo. He received the Bachelor of Engineering from ACM Honor CS Class advised by Kun He in School of Computer Science at Huazhong University of Science and Technology. He was invited to Cornell University by John E. Hopcroft and for exchange study and research on algorithms design and theoretical analysis for social network problems. He is a member of Shaw College, CUHK, Shenzhen. His research is supported by Presidential Fellowship and Tencent Ph.D. fellowship.