多连通李群覆盖学习算法在图像分类上的应用  

Multiply Connected Lie Group Covering Learning Algorithm for Image Classification

作　　者：严晨[1] 李凡长[1] 邹鹏[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215000

出　　处：《计算机科学与探索》2014年第9期1101-1112,共12页Journal of Frontiers of Computer Science and Technology

基　　金：国家自然科学基金;东吴学者计划;苏州大学敬文书院"3I工程"重点项目~~

摘　　要：李群机器学习作为一种新的学习范式已被学术界广泛关注。根据李群的连通性质,将具有不同类别特征的研究对象映射到多连通李群空间,并从各个单连通李群空间上连线的同伦等价出发,运用覆盖的思想寻找对应不同类别的最优道路等价表示,从而用多连通李群的多值表示来呈现图像的类别信息,因此提出了多连通李群覆盖学习算法。在MPEG7_CE-Shape01_Part_B图像库的图像和MNIST手写体数字图像上进行了实验验证,结果表明与两种基于李群均值的学习算法相比,多连通李群覆盖学习算法具有较好的分类效果。As a novel learning method, Lie group machine learning has attracted much attention in academia. According to the connectivity of Lie group, this paper tries to map the research objects with different category characteristics into the space of multiply connected Lie group. Based on the homotopy equivalence of attachments on each simple con-nected Lie group, this paper explores the equivalent representation of the optimal path for each of the different cate-gories by covering ideas, so as to present the category information of images by employing its multiple-valued repre-sentation. Therefore, this paper proposes a new covering learning algorithm on multiply connected Lie group. The experimental results on the datasets of MPEG7_CE-Shape01_Part_B and MNIST show that the proposed algorithm has better classification performance with comparisons to the other two algorithms based on the Lie group means.

关 键 词：李群机器学习 多连通李群 李群覆盖学习算法 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]