{"id":5235,"date":"2023-07-04T12:53:56","date_gmt":"2023-07-04T10:53:56","guid":{"rendered":"http:\/\/nextbrain.ai\/?p=5235"},"modified":"2023-07-10T06:56:10","modified_gmt":"2023-07-10T04:56:10","slug":"understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","status":"publish","type":"post","link":"https:\/\/nextbrain.ai\/ja\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","title":{"rendered":"Machine Learning\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306e\u7406\u89e3\uff1a\u7279\u5fb4\u9078\u629e\u306e\u529b\u3092\u660e\u3089\u304b\u306b\u3059\u308b"},"content":{"rendered":"<p><h2>\u306f\u3058\u3081\u306b<\/h2><\/p>\n\n\n\n<p>\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u4e0e\u3048\u3089\u308c\u305f\u30c7\u30fc\u30bf\u306e\u8cea\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30c6\u30a3\u30b9\u30c8\u3084\u6a5f\u68b0\u5b66\u7fd2\u306e\u5b9f\u8df5\u8005\u3068\u3057\u3066\u3001\u79c1\u305f\u3061\u306f\u610f\u5473\u306e\u3042\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u898b\u3064\u3051\u51fa\u3057\u3001\u6b63\u78ba\u306a\u4e88\u6e2c\u3092\u884c\u3046\u3053\u3068\u3092\u76ee\u6307\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u5185\u306e\u3059\u3079\u3066\u306e\u7279\u5fb4\u3084\u30ab\u30e9\u30e0\u304c\u30e2\u30c7\u30eb\u306e\u4e88\u6e2c\u529b\u306b\u540c\u7b49\u306b\u5bc4\u4e0e\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306e\u6982\u5ff5\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306e\u610f\u7fa9\u3092\u63a2\u6c42\u3057\u3001\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306e\u624b\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u304c\u306a\u305c\u91cd\u8981\u306a\u306e\u304b\u3001\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306e\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3001\u305d\u3057\u3066\u30e2\u30c7\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u89e3\u91c8\u53ef\u80fd\u6027\u306b\u3082\u305f\u3089\u3059\u5229\u70b9\u306b\u3064\u3044\u3066\u8b70\u8ad6\u3057\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306e\u4e16\u754c\u306b\u98db\u3073\u8fbc\u307f\u3001\u3069\u306e\u3088\u3046\u306b\u79c1\u305f\u3061\u306e\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u52b9\u679c\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3092\u767a\u898b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><h2>\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306e\u91cd\u8981\u6027<\/h2><\/p>\n\n\n\n<p>\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7406\u7531\u304b\u3089\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u307e\u305a\u7b2c\u4e00\u306b\u3001\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304b\u3089\u7121\u95a2\u4fc2\u307e\u305f\u306f\u5197\u9577\u306a\u7279\u5fb4\u3092\u6392\u9664\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6b21\u5143\u3092\u524a\u6e1b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30ce\u30a4\u30ba\u3084\u7121\u95a2\u4fc2\u306a\u60c5\u5831\u306b\u3088\u3063\u3066\u30e2\u30c7\u30eb\u304c\u8aa4\u89e3\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002\u6700\u3082\u60c5\u5831\u91cf\u306e\u591a\u3044\u7279\u5fb4\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u306e\u7cbe\u5ea6\u3068\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u306b\u3001\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306f\u6b21\u5143\u306e\u546a\u3044\u306b\u5bfe\u51e6\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u9ad8\u6b21\u5143\u30c7\u30fc\u30bf\u306e\u5834\u5408\u3001\u7279\u5fb4\u306e\u6570\u304c\u30b5\u30f3\u30d7\u30eb\u306e\u6570\u3092\u8d85\u3048\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u624b\u6cd5\u306f\u3001\u6700\u3082\u95a2\u9023\u6027\u306e\u9ad8\u3044\u7279\u5fb4\u3092\u9078\u629e\u3057\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u3089\u306b\u3001\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306f\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306e\u89e3\u91c8\u53ef\u80fd\u6027\u3092\u9ad8\u3081\u307e\u3059\u3002\u6700\u3082\u91cd\u8981\u306a\u7279\u5fb4\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u5165\u529b\u5909\u6570\u3068\u76ee\u7684\u5909\u6570\u3068\u306e\u9593\u306e\u6839\u672c\u7684\u306a\u95a2\u4fc2\u306b\u3064\u3044\u3066\u306e\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u89e3\u91c8\u53ef\u80fd\u6027\u306f\u3001\u533b\u7642\u3001\u91d1\u878d\u3001\u6cd5\u5f8b\u306a\u3069\u3001\u8aac\u660e\u8cac\u4efb\u3068\u900f\u660e\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u5206\u91ce\u306b\u304a\u3044\u3066\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p><h2>\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u6c7a\u5b9a\u3059\u308b\u65b9\u6cd5<\/h2><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e6\u30cb\u30d0\u30ea\u30a2\u30f3\u30c8\u9078\u629e\uff1a<br>\u30e6\u30cb\u30d0\u30ea\u30a2\u30f3\u30c8\u9078\u629e\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u5909\u6570\u3068\u306e\u500b\u3005\u306e\u95a2\u4fc2\u306b\u57fa\u3065\u3044\u3066\u7279\u5fb4\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3092\u542b\u307f\u307e\u3059\u3002\u30ab\u30c6\u30b4\u30ea\u30ab\u30eb\u5909\u6570\u306b\u5bfe\u3057\u3066\u306f\u30ab\u30a4\u4e8c\u4e57\u30c6\u30b9\u30c8\u3001\u9023\u7d9a\u5909\u6570\u306b\u5bfe\u3057\u3066\u306fANOVA\u307e\u305f\u306f\u76f8\u95a2\u3092\u4f7f\u7528\u3057\u3066\u3001\u5404\u7279\u5fb4\u306e\u91cd\u8981\u6027\u3092\u8a55\u4fa1\u3067\u304d\u307e\u3059\u3002\u30c6\u30b9\u30c8\u30b9\u30b3\u30a2\u304c\u6700\u3082\u9ad8\u3044\u4e0a\u4f4dk\u306e\u7279\u5fb4\u304c\u9078\u629e\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30c4\u30ea\u30fc\u304b\u3089\u306e\u7279\u5fb4\u306e\u91cd\u8981\u6027:<br>\u30e9\u30f3\u30c0\u30e0\u30d5\u30a9\u30ec\u30b9\u30c8\u3084\u52fe\u914d\u30d6\u30fc\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u3088\u3046\u306a\u30a2\u30f3\u30b5\u30f3\u30d6\u30eb\u30c4\u30ea\u30fc\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u7279\u5fb4\u306e\u91cd\u8981\u6027\u30b9\u30b3\u30a2\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b9\u30b3\u30a2\u306f\u3001\u5404\u7279\u5fb4\u304c\u30e2\u30c7\u30eb\u306e\u5168\u4f53\u7684\u306a\u4e88\u6e2c\u7cbe\u5ea6\u306b\u3069\u308c\u3060\u3051\u5bc4\u4e0e\u3057\u3066\u3044\u308b\u304b\u3092\u5b9a\u91cf\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7279\u5fb4\u306e\u91cd\u8981\u6027\u30b9\u30b3\u30a2\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u3082\u5f71\u97ff\u529b\u306e\u3042\u308b\u7279\u5fb4\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u518d\u5e30\u7684\u7279\u5fb4\u9664\u53bb (RFE):<br>RFE\u306f\u3001\u3059\u3079\u3066\u306e\u7279\u5fb4\u304b\u3089\u59cb\u307e\u308a\u3001\u5f90\u3005\u306b\u6700\u3082\u91cd\u8981\u3067\u306a\u3044\u3082\u306e\u3092\u9664\u53bb\u3059\u308b\u53cd\u5fa9\u7684\u306a\u7279\u5fb4\u9078\u629e\u624b\u6cd5\u3067\u3059\u3002\u5168\u7279\u5fb4\u30bb\u30c3\u30c8\u3067\u30e2\u30c7\u30eb\u3092\u8a13\u7df4\u3057\u3001\u4fc2\u6570\u3084\u91cd\u8981\u6027\u306b\u57fa\u3065\u3044\u3066\u30e9\u30f3\u30af\u4ed8\u3051\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u6700\u3082\u91cd\u8981\u3067\u306a\u3044\u7279\u5fb4\u3092\u524a\u9664\u3057\u3001\u6240\u671b\u306e\u7279\u5fb4\u6570\u306b\u9054\u3059\u308b\u307e\u3067\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>L1\u6b63\u5247\u5316 (Lasso):<br>L1\u6b63\u5247\u5316\u3001\u307e\u305f\u306fLasso\u6b63\u5247\u5316\u306f\u3001\u7dda\u5f62\u30e2\u30c7\u30eb\u306e\u640d\u5931\u95a2\u6570\u306b\u30da\u30ca\u30eb\u30c6\u30a3\u9805\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3053\u306e\u30da\u30ca\u30eb\u30c6\u30a3\u306f\u3001\u30e2\u30c7\u30eb\u304c\u7121\u95a2\u4fc2\u306a\u7279\u5fb4\u306e\u4fc2\u6570\u3092\u30bc\u30ed\u306b\u7e2e\u5c0f\u3059\u308b\u3053\u3068\u3092\u4fc3\u3057\u307e\u3059\u3002\u30bc\u30ed\u3067\u306a\u3044\u4fc2\u6570\u3092\u6301\u3064\u7279\u5fb4\u306f\u91cd\u8981\u3068\u898b\u306a\u3055\u308c\u3001\u9078\u629e\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u76f8\u95a2\u306b\u57fa\u3065\u304f\u7279\u5fb4\u9078\u629e:<br>\u3053\u306e\u65b9\u6cd5\u306f\u3001\u76f8\u95a2\u884c\u5217\u3092\u4f7f\u7528\u3057\u3066\u7279\u5fb4\u9593\u306e\u95a2\u4fc2\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\u9ad8\u3044\u76f8\u95a2\u3092\u6301\u3064\u7279\u5fb4\u306f\u5197\u9577\u306a\u60c5\u5831\u3092\u542b\u3080\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u3001\u305d\u306e\u305f\u3081\u30011\u3064\u3092\u5b89\u5168\u306b\u524a\u9664\u3067\u304d\u307e\u3059\u3002\u5197\u9577\u306a\u7279\u5fb4\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u91cd\u5171\u7dda\u6027\u3092\u6e1b\u5c11\u3055\u305b\u3001\u30e2\u30c7\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p><h2>\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306e\u5229\u70b9<\/h2><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e2\u30c7\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a:<br>\u6700\u3082\u91cd\u8981\u306a\u30ab\u30e9\u30e0\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u306b\u95a2\u9023\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3001\u4e88\u6e2c\u7cbe\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u7121\u95a2\u4fc2\u307e\u305f\u306f\u5197\u9577\u306a\u7279\u5fb4\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u30ce\u30a4\u30ba\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3001\u8a08\u7b97\u306e\u8907\u96d1\u3055\u3092\u6e1b\u3089\u3057\u3001\u4e00\u822c\u5316\u80fd\u529b\u3068\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3068\u63a8\u8ad6\u306e\u9ad8\u901f\u5316:<br>\u7279\u5fb4\u9078\u629e\u306f\u30c7\u30fc\u30bf\u306e\u6b21\u5143\u3092\u6e1b\u5c11\u3055\u305b\u3001\u30e2\u30c7\u30eb\u306e\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3068\u63a8\u8ad6\u306e\u6642\u9593\u3092\u77ed\u7e2e\u3057\u307e\u3059\u3002\u7279\u5fb4\u304c\u5c11\u306a\u304f\u306a\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u3068\u5206\u6790\u306b\u5fc5\u8981\u306a\u8a08\u7b97\u30ea\u30bd\u30fc\u30b9\u304c\u6e1b\u5c11\u3057\u3001\u8a08\u7b97\u80fd\u529b\u306e\u3088\u308a\u52b9\u7387\u7684\u306a\u5229\u7528\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u89e3\u91c8\u6027\u306e\u5411\u4e0a:<br>\u5404\u7279\u5fb4\u304c\u30e2\u30c7\u30eb\u306e\u4e88\u6e2c\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30e2\u30c7\u30eb\u306e\u89e3\u91c8\u6027\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002\u91cd\u8981\u306a\u30ab\u30e9\u30e0\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u5165\u529b\u5909\u6570\u3068\u30bf\u30fc\u30b2\u30c3\u30c8\u5909\u6570\u306e\u95a2\u4fc2\u306b\u95a2\u3059\u308b\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u77e5\u8b58\u306f\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3084\u30c9\u30e1\u30a4\u30f3\u306e\u5c02\u9580\u5bb6\u306b\u30e2\u30c7\u30eb\u306e\u6c7a\u5b9a\u3092\u8aac\u660e\u3057\u3001\u6b63\u5f53\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u306e\u8efd\u6e1b:<br>\u7279\u5fb4\u9078\u629e\u306f\u3001\u7279\u5fb4\u306e\u6570\u304c\u30b5\u30f3\u30d7\u30eb\u306e\u6570\u3092\u8d85\u3048\u308b\u30b7\u30ca\u30ea\u30aa\u3067\u7279\u306b\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002\u6700\u3082\u95a2\u9023\u6027\u306e\u9ad8\u3044\u7279\u5fb4\u306e\u307f\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u30ce\u30a4\u30ba\u3092\u9664\u53bb\u3057\u3001\u30e2\u30c7\u30eb\u304c\u865a\u507d\u306e\u95a2\u4fc2\u3092\u5b66\u7fd2\u3059\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e2\u30c7\u30eb\u306e\u672a\u77e5\u306e\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u4e00\u822c\u5316\u80fd\u529b\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3068\u30ea\u30bd\u30fc\u30b9\u52b9\u7387:<br>\u73fe\u5b9f\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306f\u975e\u5e38\u306b\u5927\u304d\u304f\u3001\u6570\u5343\u307e\u305f\u306f\u6570\u767e\u4e07\u306e\u7279\u5fb4\u3092\u542b\u3080\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u5fb4\u9078\u629e\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u6700\u3082\u60c5\u5831\u4fa1\u5024\u306e\u9ad8\u3044\u30ab\u30e9\u30e0\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u3092\u52b9\u7387\u7684\u306b\u30b9\u30b1\u30fc\u30eb\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7121\u95a2\u4fc2\u306a\u7279\u5fb4\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30e2\u30ea\u30d5\u30c3\u30c8\u30d7\u30ea\u30f3\u30c8\u3068\u8a08\u7b97\u8981\u4ef6\u3092\u6e1b\u3089\u3057\u3001\u30e2\u30c7\u30eb\u3092\u3088\u308a\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u30ea\u30bd\u30fc\u30b9\u52b9\u7387\u306e\u826f\u3044\u3082\u306e\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p><h2>\u7d50\u8ad6<\/h2><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column col-md-6 mt-4 is-layout-flow wp-block-column-is-layout-flow\">\n<p><iframe id=\"_dytid_9569\" title=\"YouTube\u30d3\u30c7\u30aa\u30d7\u30ec\u30fc\u30e4\u30fc\" data-src=\"https:\/\/www.youtube.com\/embed\/oDpu3m7iQRI\" width=\"100%\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-gtm-yt-inspected-4=\"true\" data-gtm-yt-inspected-12=\"true\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column col-md-6 mt-4 is-layout-flow wp-block-column-is-layout-flow\">\n<p>\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306f\u3001\u30c7\u30fc\u30bf\u304b\u3089\u95a2\u9023\u60c5\u5831\u3092\u62bd\u51fa\u3057\u3001\u30e2\u30c7\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u89e3\u91c8\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3067\u3059\u3002\u3055\u307e\u3056\u307e\u306a\u7279\u5fb4\u9078\u629e\u6280\u8853\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u3082\u91cd\u8981\u306a\u7279\u5fb4\u3092\u7279\u5b9a\u3057\u9078\u629e\u3067\u304d\u3001\u3088\u308a\u6b63\u78ba\u306a\u4e88\u6e2c\u3068\u52b9\u7387\u7684\u306a\u30e2\u30c7\u30eb\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u306f\u3001\u9ad8\u6b21\u5143\u306e\u546a\u3044\u306b\u5bfe\u51e6\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3060\u3051\u3067\u306a\u304f\u3001\u30c7\u30fc\u30bf\u5185\u306e\u95a2\u4fc2\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u3082\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u6a5f\u68b0\u5b66\u7fd2\u306e\u5b9f\u52d9\u8005\u3068\u3057\u3066\u3001\u7279\u5fb4\u9078\u629e\u306e\u529b\u3092\u53d7\u3051\u5165\u308c\u3001\u6700\u9069\u306a\u30e2\u30c7\u30eb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u305f\u3081\u306b\u7279\u5fb4\u306e\u8cea\u3068\u95a2\u9023\u6027\u3092\u512a\u5148\u3059\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction Machine learning algorithms are only as good as the data they are fed. As data scientists and machine learning practitioners, we strive to uncover [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5273,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[],"class_list":["post-5235","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Understanding Column Importance in Machine Learning: Unveiling the Power of Feature Selection - NextBrain AI | No-Code Machine Learning<\/title>\n<meta name=\"description\" content=\"Discover the importance of columns in machine learning and unlock the potential of feature selection with this comprehensive guide from NextBrain AI.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nextbrain.ai\/ja\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding Column Importance in Machine Learning: Unveiling the Power of Feature Selection - NextBrain AI | No-Code Machine Learning\" \/>\n<meta property=\"og:description\" content=\"Discover the importance of columns in machine learning and unlock the potential of feature selection with this comprehensive guide from NextBrain AI.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nextbrain.ai\/ja\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection\" \/>\n<meta property=\"og:site_name\" content=\"NextBrain AI | No-Code Machine Learning\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-04T10:53:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-10T04:56:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1495\" \/>\n\t<meta property=\"og:image:height\" content=\"761\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin1061\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@nextbrain_ai\" \/>\n<meta name=\"twitter:site\" content=\"@nextbrain_ai\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin1061\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"4\u5206\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b\uff1a\u7279\u5fb4\u9078\u629e\u306e\u529b\u3092\u660e\u3089\u304b\u306b\u3059\u308b - NextBrain AI | \u30ce\u30fc\u30b3\u30fc\u30c9\u6a5f\u68b0\u5b66\u7fd2","description":"\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u767a\u898b\u3057\u3001NextBrain AI\u306b\u3088\u308b\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3067\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306e\u53ef\u80fd\u6027\u3092\u89e3\u304d\u653e\u3061\u307e\u3057\u3087\u3046\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nextbrain.ai\/ja\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","og_locale":"ja_JP","og_type":"article","og_title":"Understanding Column Importance in Machine Learning: Unveiling the Power of Feature Selection - NextBrain AI | No-Code Machine Learning","og_description":"Discover the importance of columns in machine learning and unlock the potential of feature selection with this comprehensive guide from NextBrain AI.","og_url":"https:\/\/nextbrain.ai\/ja\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","og_site_name":"NextBrain AI | No-Code Machine Learning","article_published_time":"2023-07-04T10:53:56+00:00","article_modified_time":"2023-07-10T04:56:10+00:00","og_image":[{"width":1495,"height":761,"url":"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg","type":"image\/jpeg"}],"author":"admin1061","twitter_card":"summary_large_image","twitter_creator":"@nextbrain_ai","twitter_site":"@nextbrain_ai","twitter_misc":{"\u57f7\u7b46\u8005":"admin1061","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"4\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#article","isPartOf":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection"},"author":{"name":"admin1061","@id":"https:\/\/nextbrain.ai\/#\/schema\/person\/664f8de536c1bdc2b939139c7ddac060"},"headline":"Understanding Column Importance in Machine Learning: Unveiling the Power of Feature Selection","datePublished":"2023-07-04T10:53:56+00:00","dateModified":"2023-07-10T04:56:10+00:00","mainEntityOfPage":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection"},"wordCount":890,"publisher":{"@id":"https:\/\/nextbrain.ai\/#organization"},"image":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#primaryimage"},"thumbnailUrl":"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg","articleSection":["blog"],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","url":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection","name":"\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b\uff1a\u7279\u5fb4\u9078\u629e\u306e\u529b\u3092\u660e\u3089\u304b\u306b\u3059\u308b - NextBrain AI | \u30ce\u30fc\u30b3\u30fc\u30c9\u6a5f\u68b0\u5b66\u7fd2","isPartOf":{"@id":"https:\/\/nextbrain.ai\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#primaryimage"},"image":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#primaryimage"},"thumbnailUrl":"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg","datePublished":"2023-07-04T10:53:56+00:00","dateModified":"2023-07-10T04:56:10+00:00","description":"\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3051\u308b\u30ab\u30e9\u30e0\u306e\u91cd\u8981\u6027\u3092\u767a\u898b\u3057\u3001NextBrain AI\u306b\u3088\u308b\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3067\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u9078\u629e\u306e\u53ef\u80fd\u6027\u3092\u89e3\u304d\u653e\u3061\u307e\u3057\u3087\u3046\u3002","breadcrumb":{"@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#primaryimage","url":"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg","contentUrl":"https:\/\/nextbrain.ai\/wp-content\/uploads\/2023\/07\/columnImportance.jpg","width":1495,"height":761},{"@type":"BreadcrumbList","@id":"https:\/\/nextbrain.ai\/blog\/understanding-column-importance-in-machine-learning-unveiling-the-power-of-feature-selection#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/nextbrain.ai\/"},{"@type":"ListItem","position":2,"name":"Understanding Column Importance in Machine Learning: Unveiling the Power of Feature Selection"}]},{"@type":"WebSite","@id":"https:\/\/nextbrain.ai\/#website","url":"https:\/\/nextbrain.ai\/","name":"NextBrain AI | \u30ce\u30fc\u30b3\u30fc\u30c9\u6a5f\u68b0\u5b66\u7fd2","description":"\u610f\u601d\u6c7a\u5b9a\u3092\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b","publisher":{"@id":"https:\/\/nextbrain.ai\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nextbrain.ai\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/nextbrain.ai\/#organization","name":"NextBrain.ai","url":"https:\/\/nextbrain.ai\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/nextbrain.ai\/#\/schema\/logo\/image\/","url":"http:\/\/nextbrain.ai\/wp-content\/uploads\/2022\/01\/logoNext.png","contentUrl":"http:\/\/nextbrain.ai\/wp-content\/uploads\/2022\/01\/logoNext.png","width":270,"height":96,"caption":"NextBrain.ai"},"image":{"@id":"https:\/\/nextbrain.ai\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/x.com\/nextbrain_ai","https:\/\/www.linkedin.com\/company\/nextbrain-ai\/","https:\/\/www.youtube.com\/channel\/UCpRhfXZE3YEdfgp2K0U9kxQ","https:\/\/github.com\/NextBrain-ai"]},{"@type":"Person","@id":"https:\/\/nextbrain.ai\/#\/schema\/person\/664f8de536c1bdc2b939139c7ddac060","name":"admin1061","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/nextbrain.ai\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56db6a17980685fa0a8ed3f9e359af33?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56db6a17980685fa0a8ed3f9e359af33?s=96&d=mm&r=g","caption":"admin1061"},"sameAs":["http:\/\/nextbrain.ai\/"]}]}},"_links":{"self":[{"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/posts\/5235"}],"collection":[{"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/comments?post=5235"}],"version-history":[{"count":0,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/posts\/5235\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/media\/5273"}],"wp:attachment":[{"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/media?parent=5235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/categories?post=5235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nextbrain.ai\/ja\/wp-json\/wp\/v2\/tags?post=5235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}