中文摘要：

Chuang Lin is a professor of the Depart- ment of Computer Science and Technol- ogy, Tsinghua University, China. He re- ceived the PhD degree in computer science from Tsinghua University in 1994. His cur- rent research interests include computer networks, performance evaluation, network security analysis, and Petri net theory and its applications. He has published more than 300 papers in research journals and IEEE conference proceedings in these areas and has published three books. Professor Lin is a member of ACM Council, a senior member of the IEEE and the Chinese Delegate in TC6 of IFIP. He serves as the Technical Program Vice Chair, the 10th IEEE Workshop on Future Trends of Distributed Computing Systems （FT- DCS 2004）; the General Chair, ACM SIGCOMM Asia workshop 2005; the Associate Editor, IEEE Transactions on Vehicular Tech- nology; the Area Editor, Journal of Computer Networks; and the Area Editor, Journal of Parallel and Distributed Computing. E-mail： {chlin, myao, yinli} @csnetl.cs.tsinghua.edu.cn,Min Yao received his bachelor degree in computer science and technology from Bei- jing University of Posts and Telecommu- nication, China in 2010 and is currently a PhD candidate in Department of Computer Science and Technology, Tsinghua Univer- sity, China. His recent research mainly fo- cuses on resource management in cloud computing. He also has done some work on energy-efficient TDMA scheduling in wireless sensor networks before. Yin Li received his bachelor degree in com- puter science and technology from Beijing University of Posts and Telecommunica- tion, China in 2009 and is currently a PhD candidate of the Department of Computer Science and Technology, Tsinghua Univer- sity, China. His research interests include job scheduling in MapReduce, workflow modeling and optimization.