# 独立成分分析

(Difference between revisions)
 Revision as of 16:06, 5 April 2013 (view source)Kandeng (Talk | contribs) (→中文译者)← Older edit Revision as of 04:34, 8 April 2013 (view source)Kandeng (Talk | contribs) Newer edit → Line 89: Line 89: 袁贞明（zmyuan@hznu.edu.cn），晓风（xiaofeng.zhb@alibaba-inc.com）, 林锋（xlfg@yeah.net） 袁贞明（zmyuan@hznu.edu.cn），晓风（xiaofeng.zhb@alibaba-inc.com）, 林锋（xlfg@yeah.net） + + + {{Languages|Independent_Component_Analysis|English}}

## 概述

$J(W) = \lVert Wx \rVert_1$

$\begin{array}{rcl} {\rm minimize} & \lVert Wx \rVert_1 \\ {\rm s.t.} & WW^T = I \\ \end{array}$

## 标准正交ICA

$\begin{array}{rcl} {\rm minimize} & \lVert Wx \rVert_1 \\ {\rm s.t.} & WW^T = I \\ \end{array}$

1. $W \leftarrow W - \alpha \nabla_W \lVert Wx \rVert_1$
2. $W \leftarrow \operatorname{proj}_U W$, 其中U是满足WWT = I的矩阵空间

## 中英文对照

Independent Component Analysis 独立成分分析
sparse coding 稀疏编码算法
over-complete basis 超完备基
orthonormal basis 标准正交基
sparsity penalty 稀疏惩罚项
whitened 白化
under-complete basis 不完备基
line-search algorithm 线搜索算法
topographic cost term 拓扑代价项

## 中文译者

Language : English