{"blog_url":"https://randommemory.hatenablog.com/","type":"rich","author_name":"derwind","author_url":"https://blog.hatena.ne.jp/derwind/","height":"190","width":"100%","image_url":null,"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2015%2F09%2F07%2F215209\" title=\"\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (4) \u8aa4\u5dee\u9006\u4f1d\u64ad\u6cd5 (1) - \u3089\u3093\u3060\u3080\u306a\u8a18\u61b6\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6","version":"1.0","published":"2015-09-07 21:52:09","provider_url":"https://hatena.blog","title":"\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (4) \u8aa4\u5dee\u9006\u4f1d\u64ad\u6cd5 (1)","categories":["machine_learning","MOOC"],"description":"\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u640d\u5931\u95a2\u6570\u306b\u5bfe\u3057\u3066gradient descent\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u8003\u3048\u308b\u3002\\begin{equation} J(\\Theta) = \\frac{1}{m} \\sum_{p = 1}^m \\sum_{k = 1}^K \\mathrm{Cost}(h_\\Theta(x^p)_k,\\ y^p_k) + R(\\Theta) \\end{equation} \u3060\u3063\u305f(\u8a18\u53f7\u304c\u7d1b\u3089\u308f\u3057\u304f\u306a\u308b\u306e\u3067\u3001\u3053\u3053\u3067\u306f\u8a13\u7df4\u30c7\u30fc\u30bf\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092p\u3067\u8868\u73fe\u3059\u308b)\u3002$\\theta_{ij}^\\ell$\u3067\u306e\u504f\u5fae\u5206\u3092\u8003\u3048\u308b\u3002 \u6b63\u5247\u5316\u9805\u306f \\begin{equation} \\frac{\\partial R(\\The\u2026","url":"https://randommemory.hatenablog.com/entry/2015/09/07/215209"}