一种新的子空间模式识别方法  

A New Subspace Pattern Recognition Method

作　　者：王洪[1] 吕幼新[1] 向敬成[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子科技大学学报》2004年第1期5-8,共4页Journal of University of Electronic Science and Technology of China

摘　　要：提出了一种改进的LSM-ALSM子空间模式识别方法,将LSM的旋转策略引入ALSM,使子空间之间互不关联的情况得到改善,提高了ALSM对相似样本的区分能力。讨论中以性能函数代替经验函数来确定拒识规则的参数,实现了识别率、误识率与拒识率之间的最佳平衡;通过对有限字符集的实验结果表明,LSM-ALSM算法有效地改善了分类器的识别率和可靠性。A new subspace algorithm(LSM-ALSM) is discussed in this paper. By rotating the subspaces of ALSM, LSM changes their independent relations and improves the ALSM classifiers recognition capacity in alike characters. To realize the best balance between recognized rate, rejected rate and error rate, we presents performance function instead of experience function to determine the refuse rules. The experiment with limited character set shows that LSM-ALSM method improves the recognized rate and credibility effectively.

关 键 词：学习子空间 性能函数 散布矩阵 最小描述长度 

分 类 号：TN919.8[电子电信—通信与信息系统] TP391.4[电子电信—信息与通信工程]