自动化学报2011，Vol.37Issue(7)：794-799,6.DOI:10.3724/SP.J.1004.2011.00794
A Simple and Accurate ICA Algorithm for Separating Mixtures of Up to Four Independent Components
A Simple and Accurate ICA Algorithm for Separating Mixtures of Up to Four Independent Components
摘要
Abstract
This paper introduces an algorithm for independent component analysis (ICA) using explicit closed forms of two-,three-and four-dimensional antisymmetric matrix exponentials,based on which both the search direction and matrix exponentials can be directly computed in each iteration without any approximation.In addition,two errors have been corrected for the representation of four-dimensional antisymmetric matrix exponentials that were established in other works.Simulations show that the algorithm converges fast and can achieve better performance than the well-known Extended InfoMax and FastICA algorithms for mixtures of up to four independent components.关键词
Independent component analysis (ICA)/matrix exponential/closed form/antisymmetric matrixKey words
Independent component analysis (ICA)/matrix exponential/closed form/antisymmetric matrix引用本文复制引用
TANG Ying,LI Jian-Ping,WU Huai..A Simple and Accurate ICA Algorithm for Separating Mixtures of Up to Four Independent Components[J].自动化学报,2011,37(7):794-799,6.基金项目
Supported by National Natural Science Foundation of China (61003121),Multimodel Biometric Encryption and Its Implementation (January 2011～December 2013) （61003121）
