应电信学院管晓宏教授邀请，计算机网络领域著名专家吕自成教授将来我校访问并进行学术报告。吕自成教授在UCLA计算机科学专业获得博士学位，是期刊IEEE/ACM Transactions on Networking、IEEE Transactions on Parallel and Distributed Systems和 Journal of Performance Evaluation的编委，ACM和IEEE Fellow，现为香港中文大学计算机科学与工程系主任。

报告时间：2010年3月9日上午9:30-11:00
报告地点：科学馆207
报告名称：Mathematical Modeling of Incentive Policies in P2P Networks
报告摘要:
In order to stimulate cooperation among nodes in P2P systems, some form of incentive mechanism is necessary so as to encourage service contribution. Hence, designing and evaluating the stability, robustness and performance of incentive policies is extremely critical. In this presentation, we propose a general mathematical framework to evaluate the stability and evolution of a family of shared history based incentive policies. To illustrate the utility of the framework, we present several incentive policies and show why some incentive policy can lead to a total system collapse while the other is stable and operates at the optimal point. One can use this mathematical framework to design and analyze various incentive policies and verify whether they match the design objectives of the underlying P2P systems.

附：报告人简介

Prof. John Lui, chairman of the Department of Computer Science & Engineering at The Chinese University of Hong Kong. He received his Ph.D. in Computer Science from UCLA. He then worked in the IBM Research Laboratory and later joined the Chinese University of Hong Kong. His current research interests are in
theoretic/applied topics in data networks, network economics, distributed multimedia systems, network security, OS design issues and mathematical optimization and performance evaluation theory. John serves in the editorial board of IEEE/ACM Transactions on Networking, IEEE Transactions on Parallel and Distributed Systems, and Journal of Performance Evaluation. He is a fellow of ACM and IEEE. His personal interests include films and general reading.

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