{"author_url":"https://blog.hatena.ne.jp/derwind/","blog_url":"https://randommemory.hatenablog.com/","description":"\u7c21\u5358\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5206\u985e\u554f\u984c\u306e\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u8aa4\u5dee\u9006\u4f1d\u64ad\u6cd5\u3092\u8003\u5bdf\u3059\u308b\u3002 \u5165\u529b\u5c64\u306f $x_1$, $x_2$ \u306e2\u3064\u306e\u5165\u529b\u3092\u53d7\u3051\u53d6\u308a\u3001\u96a0\u308c\u5c64\u3067\u6d3b\u6027\u5316\u95a2\u6570\u3068\u3057\u3066sigmoid\u95a2\u6570 $\\varsigma$ \u3092\u9069\u7528\u3057\u3001\u51fa\u529b\u5c64\u3067softmax\u95a2\u6570\u3067\u78ba\u7387\u3092\u3068\u308b\u3002\u30e9\u30d9\u30eb\u306fone-hot\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u3057\u3001\u8aa4\u5dee\u95a2\u6570 $E$ \u306b\u306f\u4ea4\u5dee\u30a8\u30f3\u30c8\u30ed\u30d4\u30fc\u95a2\u6570 $E(w) = -t_1 \\log(y_1) - t_2 \\log(y_2)$ \u3092\u7528\u3044\u308b\u3002\u3042\u308b\u5b66\u7fd2\u30c7\u30fc\u30bf $x$ \u3068\u30e9\u30d9\u30eb $t$ \u3092\u5165\u529b\u3057\u305f\u5834\u5408\u306e\u52fe\u914d\u306e\u8a08\u7b97\u3092\u898b\u308b\u3002\u3053\u3053\u3067\u306f $\\frac{\\del E}{\\del w_{11}^{(1\u2026","author_name":"derwind","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/d/derwind/20190923/20190923222948.png","title":"\u8aa4\u5dee\u9006\u4f1d\u64ad\u6cd5\u306b\u3064\u3044\u3066\u518d\u3073\u8003\u3048\u3066\u307f\u308b(4)","categories":["machine_learning"],"height":"190","published":"2019-09-23 22:40:31","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2019%2F09%2F23%2F224031\" title=\"\u8aa4\u5dee\u9006\u4f1d\u64ad\u6cd5\u306b\u3064\u3044\u3066\u518d\u3073\u8003\u3048\u3066\u307f\u308b(4) - \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>","provider_name":"Hatena Blog","version":"1.0","provider_url":"https://hatena.blog","width":"100%","type":"rich","url":"https://randommemory.hatenablog.com/entry/2019/09/23/224031","blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6"}