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凸对策中的无遗憾学习

No-Regret Learning in Convex Games
课程网址: http://videolectures.net/icml08_gordon_nrl/  
主讲教师: Geoffrey J. Gordon
开课单位: 卡内基梅隆大学
开课时间: 2008-08-07
课程语种: 英语
中文简介:
关于尽量减少专家问题中的各种遗憾,以及这些遗憾类型如何与重复矩阵游戏的多智能体设置中的均衡类型相关,我们已经知道了很多。关于在线凸规划问题(OCP)中可能存在的各种遗憾,或者关于重复凸博游戏的类似多智能体设置中的均衡,我们知之甚少。这个差距是不幸的,因为凸面游戏比矩阵游戏更具表现力,并且因为许多重要的机器学习问题可以表示为OCP。在本文中,我们努力缩小这一差距:我们分析了一系列遗憾类型,它们介于外部和交换后悔之间,以及相应的均衡,它们位于粗相关和相关均衡之间。我们还分析了最小化这些遗憾类型的算法。作为我们框架的例子,我们推导出用于学习多面凸游戏中的相关均衡和广泛形式游戏中的广泛形式相关均衡的算法。前者比以前的算法指数级更有效,后者是它的第一种类型。
课程简介: Quite a bit is known about minimizing different kinds of regret in experts problems, and how these regret types relate to types of equilibria in the multiagent setting of repeated matrix games. Much less is known about the possible kinds of regret in online convex programming problems (OCPs), or about equilibria in the analogous multiagent setting of repeated convex games. This gap is unfortunate, since convex games are much more expressive than matrix games, and since many important machine learning problems can be expressed as OCPs. In this paper, we work to close this gap: we analyze a spectrum of regret types which lie between external and swap regret, along with their corresponding equilibria, which lie between coarse correlated and correlated equilibrium. We also analyze algorithms for minimizing these regret types. As examples of our framework, we derive algorithms for learning correlated equilibria in polyhedral convex games and extensive-form correlated equilibria in extensive-form games. The former is exponentially more efficient than previous algorithms, and the latter is the first of its type.
关 键 词: 重复矩阵; 均衡类型; 线凸规划
课程来源: 视频讲座网
最后编审: 2019-04-18:cwx
阅读次数: 104