{"published":"2019-10-07 07:00:00","author_url":"https://blog.hatena.ne.jp/pseudo-theory-of-everything/","blog_title":"Pseudo Theory of Everything","title":"\u308f\u3057\u306e\u601d\u3046\u30ea\u30c3\u30b8\u56de\u5e30(L2\u6b63\u5247\u5316)\u3068\u6b63\u5247\u5316\u6cd5\u3002","author_name":"pseudo-theory-of-everything","description":"1 \u306f\u3058\u3081\u306b \u6700\u8fd1\u3001\u6211\u3005+\u6570\u540d\u3067\u30b9\u30d1\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u3068\u3044\u3046\u5206\u91ce\u3092\u52c9\u5f37\u3057\u3066\u3044\u307e\u3059\u3002\u8a73\u7d30\u306f\u307e\u305f\u5225\u306e\u8a18\u4e8b\u306b\u3066\u7d39\u4ecb\u3059\u308b\u306b\u3057\u3066\u3001\u4eca\u56de\u306f\u30b9\u30d1\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u524d\u6bb5\u968e\u306b\u5f53\u305f\u308b \u30ea\u30c3\u30b8\u56de\u5e30(ridge regresion) \u306b\u811a\u5149\u3092\u5f53\u3066\u307e\u30591\u3002 \u8aad\u8005\u306b\u306f\u91c8\u8fe6\u306b\u8aac\u6cd5\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30ea\u30c3\u30b8\u56de\u5e30\u306f L2 \u6b63\u5247\u5316\u3068\u3082\u547c\u3070\u308c\u6a5f\u68b0\u5b66\u7fd2\u306e\u4e2d\u3067\u3082\u975e\u5e38\u306b\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\u306a\u6982\u5ff5\u306e\u4e00\u3064\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u5c02\u9580\u7684\u306b\u6b63\u5247\u5316\u6cd5\u3092\u6271\u3063\u3066\u307f\u3066\u3001\u6848\u5916\u77e5\u3089\u306a\u304b\u3063\u305f\u3053\u3068\u3092\u77e5\u308c\u305f\u306e\u3067\u307e\u3068\u3081\u307e\u3057\u305f\u3002 \u307e\u305a\u3001\u30ea\u30c3\u30b8\u56de\u5e30\u3067\u306e\u640d\u5931\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f0f\u3067\u8a18\u8ff0\u3055\u308c\u307e\u3059\u3002 \\begin{align} E = (y - X \\vec{w})^2 + \\alpha \\v\u2026","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","url":"https://pseudo-theory-of-everything.hatenablog.com/entry/2019/10/07/070000","width":"100%","height":"190","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/p/pseudo-theory-of-everything/20191006/20191006162934.png","categories":["\u6b63\u5247\u5316","\u6a5f\u68b0\u5b66\u7fd2","\u6570\u5b66","\u30b9\u30d1\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0"],"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpseudo-theory-of-everything.hatenablog.com%2Fentry%2F2019%2F10%2F07%2F070000\" title=\"\u308f\u3057\u306e\u601d\u3046\u30ea\u30c3\u30b8\u56de\u5e30(L2\u6b63\u5247\u5316)\u3068\u6b63\u5247\u5316\u6cd5\u3002 - Pseudo Theory of Everything\" 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://pseudo-theory-of-everything.hatenablog.com/"}