{"url":"https://hidetobara.hateblo.jp/entry/2018/02/02/032552","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","blog_title":"\u3084\u3084\u6fc3\u539a\u306a\u30bd\u30fc\u30b9","published":"2018-02-02 03:25:52","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhidetobara.hateblo.jp%2Fentry%2F2018%2F02%2F02%2F032552\" title=\"SNS\u30b5\u30a4\u30c8\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u5206\u6790\uff12 - \u3084\u3084\u6fc3\u539a\u306a\u30bd\u30fc\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","type":"rich","description":"\u9032\u5c55\u304c\u3042\u308a\u307e\u3057\u305f\u306e\u3067\u3054\u5831\u544a\u3044\u305f\u3057\u307e\u3059\u3002 \u88ab\u3063\u3066\u3044\u308b\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u304c\u3042\u308a\u3001\u30e6\u30cb\u30fc\u30af\u3092\u53d6\u308a\u307e\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u300115400\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u304b\u30897900\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u306b\u3002 \u3055\u304f\u3089\u696d\u8005\u306f\u3001\u5168\u304f\u540c\u3058\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3092\u4f7f\u3044\u307e\u308f\u3057\u305f\u306e\u3067\u3057\u3087\u3046\u304b\uff1f \u5358\u8a9e\u306e\u91cd\u8981\u5ea6\u306e\u8a08\u7b97\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63 \u9577\u3059\u304e\u308b\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u306b\u5f15\u304d\u305a\u3089\u308c\u308b\u611f\u3058\u304c\u3057\u305f\u306e\u3067\u3001TF\u306e\u8a55\u4fa1\u3092 \u03a3_k N_k,j \u306e\u5e73\u65b9\u6839\u3067\u5272\u3063\u3066\u307f\u307e\u3057\u305f\u3002 \u91cd\u8981\u5ea6i,j=TF x IDF TF_i,j = N_i,j / sqrt(\u03a3_k N_k,j) IDF_i = log( [\u7dcf\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u6570] / [\u5358\u8a9eT_i\u3092\u542b\u3080\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u6570] ) i: \u5358\u8a9e\u756a\u53f7 j: \u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u756a\u53f7 D\u2026","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hidetobara/20180202/20180202022238.png","author_url":"https://blog.hatena.ne.jp/hidetobara/","width":"100%","height":"190","blog_url":"https://hidetobara.hateblo.jp/","author_name":"hidetobara","title":"SNS\u30b5\u30a4\u30c8\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u5206\u6790\uff12","categories":["SNS","\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb","\u5206\u6790"]}