{"id":154,"date":"2011-05-25T11:06:46","date_gmt":"2011-05-25T02:06:46","guid":{"rendered":"https:\/\/www.riskdatabank.co.jp\/rdb\/riskpedia\/?p=154"},"modified":"2013-05-02T13:53:17","modified_gmt":"2013-05-02T04:53:17","slug":"%e3%83%ad%e3%82%b8%e3%82%b9%e3%83%86%e3%82%a3%e3%83%83%e3%82%af%e5%9b%9e%e5%b8%b0%e3%83%a2%e3%83%87%e3%83%ab","status":"publish","type":"post","link":"https:\/\/www.riskdatabank.co.jp\/rdb\/riskpedia\/154\/","title":{"rendered":"\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u30e2\u30c7\u30eb"},"content":{"rendered":"<p>\u3000\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3068\u547c\u3070\u308c\u308b\u4ee5\u4e0b\u306e\u5f0f\u3092\u3082\u3068\u306b\u4f5c\u3089\u308c\u305f\u56de\u5e30\u30e2\u30c7\u30eb\u306e\u3053\u3068\u3092\u3044\u3046\u3002<\/p>\n<p>y=exp(x) \/ (1+exp(x))\u3000\uff08exp(x)\u306fx\u306e\u81ea\u7136\u5bfe\u6570\u3092\u3042\u3089\u308f\u3059\uff09\u3000&#8230;(1)<\/p>\n<p>\u3000\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u306f\u30010\u30681\u306e\u9593\u306e\u5024\u3092\u3068\u308b\u5909\u6570\u3092\u8868\u73fe\u3059\u308b\u306e\u306b\u90fd\u5408\u304c\u3044\u3044\u305f\u3081\u3001\u793e\u4f1a\u79d1\u5b66\u306b\u304a\u3051\u308b\u69d8\u3005\u306a\u5206\u91ce\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u7387\uff08PD\uff09\u306f\u3001\u3053\u306e0\u30681\u306e\u9593\u306e\u5024\u3092\u3068\u308b\u5909\u6570\u306b\u3066\u8868\u73fe\u3059\u308b\u306e\u306b\u975e\u5e38\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u4fe1\u7528\u30b9\u30b3\u30a2\u30ea\u30f3\u30b0\u30e2\u30c7\u30eb\u306e\u3046\u3061\u3001PD\u3092\u63a8\u8a08\u306e\u5bfe\u8c61\u3068\u3059\u308b\u3082\u306e\u306e\u591a\u304f\u304c\u3053\u306e\u5f62\u3092\u3068\u3063\u3066\u3044\u308b\u3002\u5b9f\u969b\u306b\u306f(1)\u306e\u5927\u5c0f\u95a2\u4fc2\u3092\u9006\u8ee2\u3055\u305b\u3066\u3001\u304b\u3064x\u3092\u7dda\u5f62\u5f0f\u306e\u5f62\u3067\u8868\u73fe\u3057\u305f\u4ee5\u4e0b\u306e\u5f0f\u304c\u7528\u3044\u3089\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n<p>y=1\/(1+exp(x))<\/p>\n<p>\uff08\u305f\u3060\u3057\u3001x=a0+a1x1+&#8230;+akxk\uff09\u3000&#8230;(2)<\/p>\n<p>\u3000\u5927\u5c0f\u95a2\u4fc2\u3092\u9006\u8ee2\u3059\u308b\u3053\u3068\u3067\u3001x\u3068\u3044\u3046\u8cb8\u51fa\u5148\u306e\u4fe1\u7528\u72b6\u614b\u3092\u3042\u3089\u308f\u3059\u5909\u6570\u304c\u5927\u304d\u3051\u308c\u3070\u5927\u304d\u3044\u307b\u3069\u3001y\u304c\u3042\u3089\u308f\u3059PD\u3082\u5c0f\u3055\u3044\u3068\u3044\u3046\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3064\u305f\u3081\u3001\u5b9f\u52d9\u4e0a\u306f\u4f7f\u3044\u3084\u3059\u3044\u3068\u3044\u3046\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u3002\u307e\u305f\u3001x1\u304b\u3089xk\u307e\u3067\u306e\u5909\u6570\u306b\u306f\u3001\u8cb8\u51fa\u5148\u306e\u6c7a\u7b97\u66f8\u304b\u3089\u53d6\u5f97\u3059\u308b\u8ca1\u52d9\u6307\u6a19\u306e\u5024\u306a\u3069\u3092\u5165\u529b\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u5909\u6570\u306b\u5bfe\u5fdc\u3057\u305f\u91cd\u307f\u3068\u3057\u3066a1\u304b\u3089ak\u306e\u5024\uff08\u504f\u56de\u5e30\u4fc2\u6570\uff09\u3001\u304a\u3088\u3073\u5b9a\u6570a0\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3068\u547c\u3070\u308c\u308b\u4ee5\u4e0b\u306e\u5f0f\u3092\u3082\u3068\u306b\u4f5c\u3089\u308c\u305f\u56de\u5e30\u30e2\u30c7\u30eb\u306e\u3053\u3068\u3092\u3044\u3046\u3002 y=exp(x) \/ (1+exp(x))\u3000\uff08exp(x)\u306fx\u306e\u81ea\u7136\u5bfe\u6570\u3092\u3042\u3089\u308f\u3059\uff09\u3000&#8230;(1) \u3000\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u306f\u30010\u30681\u306e &hellip; 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