{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhiroga.hatenablog.com%2Fentry%2F2017%2F12%2F21%2F232814\" title=\"Coursera\u306eMachine Learning\u3092Python\u3067\u3084\u308a\u76f4\u3059#2 - \u3055\u308f\u3089\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://hiroga.hatenablog.com/","published":"2017-12-21 23:28:14","title":"Coursera\u306eMachine Learning\u3092Python\u3067\u3084\u308a\u76f4\u3059#2","height":"190","blog_title":"\u3055\u308f\u3089\u30d6\u30ed\u30b0","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","categories":[],"description":"\u5fa9\u7fd2\u3057\u305f\u5185\u5bb9\uff0b\u305d\u308c\u3092\u3069\u3046\u3084\u3063\u3066\u30cf\u30f3\u30c9&sklean\u3067\u5b9f\u88c5\u3057\u305f\u304b\u306e\u307e\u3068\u3081 \u4eca\u56de\u306f\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30 \u5b9f\u88c5\u3057\u305f\u30d5\u30a1\u30a4\u30eb github.com \u53c2\u8003\u8cc7\u6599 qiita.com \u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30 \u76ee\u7684\u5909\u6570Y\u3092\u8aac\u660e\u5909\u6570X\u3067\u8aac\u660e\u3059\u308b\u56de\u5e30\u5206\u6790\u306e\u624b\u6cd5\u3092\u5206\u985e\u3067\u3082\u4f7f\u3046\u305f\u3081\u306e\u624b\u6cd5\u3002 \u76ee\u7684\u5909\u6570Y\u3092 0 \u2266 Y \u2266 1 \u306e\u7bc4\u56f2\u306b\u53ce\u3081\u308b\u305f\u3081\u3001\u30b7\u30b0\u30e2\u30a4\u30c9\u95a2\u6570\u3092\u7528\u3044\u3066\u8a08\u7b97\u7d50\u679c\u3092\u5909\u63db\u3059\u308b\u3002 # \u30b7\u30b0\u30e2\u30a4\u30c9\u95a2\u6570 import math def sigmoid(z): return 1/(1+math.e**(-z)) \u6b63\u5247\u5316 \u8aac\u660e\u5909\u6570\u3092X2, X3...\u3068\u5897\u3084\u3059\u3053\u3068\u3067\u3001100%\u306b\u8fd1\u3044\u4e88\u6e2c\u304c\u3067\u304d\u308b\u304c\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3057\u3066\u3057\u307e\u3046\u2026","author_url":"https://blog.hatena.ne.jp/hiroga_cc/","width":"100%","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hiroga_cc/20171221/20171221231706.png","version":"1.0","author_name":"hiroga_cc","url":"https://hiroga.hatenablog.com/entry/2017/12/21/232814","type":"rich"}