近日，明尼苏达大学（University of Minnesota, USA）Zhang, Zhi-Li教授应邀访问信息安全系，并做了题为《Measuring and Understanding Large-scale (Video) Content Delivery Systems》的学术报告。报告介绍了计算机网络领域的技术发展趋势及其课题组近期在该领域的研究项目和进展。Zhang教授的研究团队通过被动和主动测量的方式，“逆向”分析出YouTube和Netflix视频分发系统的总体结构。研究YouTube和Netflix的体系结构对于设计其它Internet规模内容分发系统在多个方面有很好的借鉴意义。报告中Zhang教授还回答了老师、同学们提出的问题并和大家进行了深入讨论。
报告会后Zhang教授和研究室青年教师和研究生进行了座谈，并听取了两位教授和三位博士生的工作报告，并重点讨论了相关工作。通过报告与座谈，促进了研究室师生与国外高水平教授之间的学术交流和合作。
Professor Zhang is Qwest Chair Professor in Telecommunications and McKnight Distinguished University Professor at Department of Computer Science & Engineering, University of Minnesota. He received his B.S. degree in Computer Science from Nanjing University, China, and his M.S. and Ph.D. degrees in Computer Science from the University of Massachusetts, Amherst. He has held visiting positions at University of California, Berkeley, and Miller Institute of Basic Sciences; IMDEA Networks and Universitad Carlos III Madrid; AT&T Labs—Research; Sprint Advanced Technology Labs; IBM T.J. Watson Research Center; Microsoft Research; Fujitsu Labs of America and INRIA, Sophia-Antipolis, France. Dr. Zhang’s research interests lie broadly in computer communication and networks, Internet technology, multimedia and emerging applications. His past research was centered on the analysis, design and development of scalable Internet QoS solutions to support performance-demanding multimedia applications. His current research focuses on building highly scalable, resilient and secure Internet infrastructure and mechanisms to enhance Internet service availability, reliability and security, and on developing next generation, service-oriented, manageable Internet architectures to provide better support for creation, deployment, operations and management of value-added Internet services and underlying networks, including mobile, cloud and content delivery services and networks.
Dr. Zhang has served on the Editorial board of IEEE/ACM Transactions on Networking, Elsevier’s Computer Networks, Journal of Computational Social Networks, and Journal of Computer Science and Technology. He was Technical Program Co-chair of IEEE ICNP’13, IFIP Networking 2013, IEEE INFOCOM 2006, ACM/USENIX Internet Measurement Conference 2008 and IEEE/IFIP IWQoS Workshop. He has served on the Technical Program Committees of various conferences and workshops including ACM SIGCOMM, ACM SIGMETRICS, ACM/USENIX IMC, IEEE INFOCOM, IEEE ICNP and CoNext. He received the National Science Foundation CAREER Award, the Miller Visiting Professorship at Miller Institute for Basic Sciences, University of California, Berkeley, the University of Minnesota McKnight Distinguished University Professorship, the George Taylor Distinguished Research Award, and McKnight Land-Grant Professorship. He is co-recipient of four Best Paper Awards (ACM SIGMETRICS’96, IEEE ICNP’02 and IEEE INFOCOM’10, RAID’13). He is a member of IEEE and ACM, and a Fellow of IEEE.