首页计算数学
   首页数学分析
   首页数学
0


改进信念传播:一种求解优化问题的算法

Modified Belief Propagation: an Algorithm for Optimization Problems
课程网址: http://videolectures.net/oiml05_mourik_aop/  
主讲教师: Jort van Mourik
开课单位: 阿斯顿大学
开课时间: 2007-02-25
课程语种: 英语
中文简介:
信念传播是众所周知的算法,用于解决各种优化问题,例如纠错码图着色和可满足性问题。它通常在复制对称近似成立的区域中工作良好,但在复制对称性中断时发生故障。诸如Survey Survey之类的替代方案已被提出并取得了巨大成功,但通常仅限于零温度限制。我们提出了对信念传播的简单修改,它也可以成功地处理有限温度场景,并在几个例子中说明它的效率。
课程简介: Belief propagation is a well known algorithm to solve various optimization problems, such as error correcting codes graph colouring and satisfiability problems. It generally works well in areas where the replica symmetric approximation holds, but breaks down when replica symmetry breaking occurs. Alternatives such as Survey Propagation have been proposed with great success, but are generally limited to the zero temperature limit. We propose a simple modification to Belief Propagation that can also successfully deal with finite temperature scenarios, and illustrate its efficiency on several examples.
关 键 词: 信念传播; 纠错码; 图着色; 复杂对称性; 零温度限制; 有限温度
课程来源: 视频讲座网
最后编审: 2020-06-08:cxin
阅读次数: 108