报告题目：Agent Incentives of Strategic Behaviors in Resource Sharing on P2P Networks
报告时间：2019年12月27日上午10:00
报告地点：计算机楼313
报告简介：
In this talk, we focus on the resource sharing over networks with autonomous participants (or agents), which goes beyond the peer-to-peer (P2P) bandwidth sharing idea. In such a resource sharing system, participants act as both suppliers and consumers of resources. Formally, this system is modeled as an undirected graph G, where each node i represents a peer with
units of divisible resources (or weight) to be distributed among its neighbors. Each agent obtains the utility by exchanging its resources with its neighbors according to the preset rules. However, agents may play strategically to improve their utilities by influencing the allocation, since the allocation depends on what they submit. Recently we proved the truthfulness of a market equilibrium mechanism, which can be obtained by a combinatorial method, against strategic behaviors of edge deletion and weight cheating. Another kind of strategy, called Sybil attack, is also considered. A strategic agent plays the Sybil attack by disguising itself to create several copied false nodes with its resources assigning among them. We are interested in the robustness of the market equilibrium mechanism in withstanding such a strategy in terms of the incentive ratio to measure how much one could gain at most. A series of work have been done on the Sybil attack strategy against the market equilibrium mechanism on different kinds of graphs.
报告人简介：
程郁琨博士，苏州科技大学副教授。中国运筹学会对策论分会理事，中国运筹学会数学规划分会青年理事，江苏省运筹学会理事。主要研究领域为信息经济学、算法博弈论、组合优化等。2010-2013年期间，在浙江大学从事博士后研究工作。2012-2013年，获国家留学基金委资助赴澳大利亚墨尔本大学访问。作为项目主持人，曾主持国家自然科学基金项目3项，主持省部级以上项目1项，主持省教育厅项目1项。作为主要项目参与人，参加国家自然科学基金项目5项。在国内外期刊、会议上发表论文余30篇，其中在ICDCS(分布式计算系统顶级国际会议)，IJCAI（人工智能顶级国际会议），WINE，SAGT，COCOON等国际重要学术会议上发表论文13篇。获得2019年江苏省高校“青蓝工程”优秀青年骨干教师称号；获得2017年江苏省高等学校微课教学比赛二等奖，2018年江苏省本科高校青年教师教学竞赛二等奖。
