{"url":"https://andy1024.hatenadiary.org/entry/20120604/1338817989","categories":["\u7814\u7a76"],"version":"1.0","image_url":null,"author_name":"andy1024","author_url":"https://blog.hatena.ne.jp/andy1024/","description":"1\uff0e\u4e2d\u5fc3\u5316 2\uff0e\u767d\u8272\u5316 3\uff0efastICA\u306e\u9069\u7528\u767d\u8272\u5316\u884c\u5217\u306f\u76f8\u95a2\u884c\u5217\u3092\u56fa\u6709\u5024\u5206\u89e3\u3057\u305f\u3082\u306e\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u5f97\u3089\u308c\u308b\uff08\u53c2\u8003\uff09\u3002\u4e2d\u5fc3\u5316\u3057\u305f\u30d9\u30af\u30c8\u30ebx\u306b\u5bfe\u3057\uff0cy=Vx\u3068\u306a\u308b\u767d\u8272\u5316\u884c\u5217V\u3092\u6c42\u3081\u308b\u3002 \u76f8\u95a2\u884c\u5217R_xx = E(xx') (x'\u306fx\u306e\u8ee2\u7f6e)\u306b\u5bfe\u3057\u56fa\u6709\u5024\u5206\u89e3\u3092\u884c\u3044\uff0c\u56fa\u6709\u5024\u5bfe\u89d2\u884c\u5217D\u3068\u56fa\u6709\u30d9\u30af\u30c8\u30eb\u306e\u884c\u5217E\u3092\u5f97\u308b\u3002 R_xx = EDE' \u767d\u8272\u5316\u884c\u5217V\u306fD\u3068E\u3092\u7528\u3044\u3066\u8868\u3055\u308c\u308b\uff0e V=D^(-1/2)E'","blog_title":"\u7814\u7a76\u96d1\u8a18","blog_url":"https://andy1024.hatenadiary.org/","provider_name":"Hatena Blog","height":"190","published":"2012-06-04 22:53:09","type":"rich","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fandy1024.hatenadiary.org%2Fentry%2F20120604%2F1338817989\" title=\"ICA\u306e\u9069\u7528 - \u7814\u7a76\u96d1\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"ICA\u306e\u9069\u7528","width":"100%"}