{"version":"1.0","image_url":null,"author_url":"https://blog.hatena.ne.jp/akanuma-hiroaki/","provider_name":"Hatena Blog","published":"2017-03-17 09:00:00","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.akanumahiroaki.com%2Fentry%2F2017%2F03%2F17%2F090000\" title=\"3\u5c64\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5b9f\u88c5 - Tech Blog by Akanuma Hiroaki\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","categories":["Ruby","Python","DeepLearning","AI","\u6a5f\u68b0\u5b66\u7fd2"],"url":"https://blog.akanumahiroaki.com/entry/2017/03/17/090000","description":"\u66f8\u7c4d\u300c\u30bc\u30ed\u304b\u3089\u4f5c\u308bDeepLearning\u300d\u3067\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b3\u5c64\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092Ruby\u3067\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u305f\u3002 www.oreilly.co.jp \u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u5168\u4f53 \u307e\u305a\u306f\u5b9f\u88c5\u3057\u305f\u30b3\u30fc\u30c9\u5168\u4f53\u3092\u63b2\u8f09\u3057\u307e\u3059\u3002 # 3\u5c64\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5b9f\u88c5 # \u5404\u5c64\u306e\u30cb\u30e5\u30fc\u30ed\u30f3\u6570\u306f\u4e0b\u8a18\u306e\u901a\u308a # \u7b2c0\u5c64\uff08\u5165\u529b\u5c64\uff09\uff1a2 # \u7b2c1\u5c64\uff08\u96a0\u308c\u5c64\uff09\uff1a3 # \u7b2c2\u5c64\uff08\u96a0\u308c\u5c64\uff09\uff1a2 # \u7b2c3\u5c64\uff08\u51fa\u529b\u5c64\uff09\uff1a2 require 'numo/narray' # \u6d3b\u6027\u5316\u95a2\u6570\u3068\u3057\u3066\u30b7\u30b0\u30e2\u30a4\u30c9\u95a2\u6570\u3092\u4f7f\u3046 def sigmoid(x) 1 / (1 + Numo::DFloat::Math.exp(-x)) end # \u51fa\u529b\u5c64\u306e\u2026","provider_url":"https://hatena.blog","title":"3\u5c64\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5b9f\u88c5","width":"100%","height":"190","author_name":"akanuma-hiroaki","blog_title":"Tech Blog by Akanuma Hiroaki","blog_url":"https://blog.akanumahiroaki.com/"}