{"id":188,"date":"2023-09-14T23:24:55","date_gmt":"2023-09-14T14:24:55","guid":{"rendered":"https:\/\/awesome-note.com\/?p=188"},"modified":"2023-09-30T13:10:05","modified_gmt":"2023-09-30T04:10:05","slug":"%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c","status":"publish","type":"post","link":"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/","title":{"rendered":"[\ub370\uc774\ud130 \uc804\ucc98\ub9ac2] \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac(\ubcc0\uc218 \uc120\ud0dd, \ucc28\uc6d0 \ucd95\uc18c)"},"content":{"rendered":"\n<p>\ub370\uc774\ud130 \uc804\ucc98\ub9ac \uacfc\uc815\uc740 \ud06c\uac8c (1) \ub370\uc774\ud130 \uc815\uc81c(<a href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac1-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%95%ec%a0%9c%ea%b2%b0%ec%b8%a1%ea%b0%92-%ec%9d%b4%ec%83%81%ea%b0%92-%ec%b2%98%eb%a6%ac\/\" data-type=\"link\" data-id=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac1-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%95%ec%a0%9c%ea%b2%b0%ec%b8%a1%ea%b0%92-%ec%9d%b4%ec%83%81%ea%b0%92-%ec%b2%98%eb%a6%ac\/\">\uad00\ub828 \ud3ec\uc2a4\ud305 \ubcf4\uae30<\/a>), (2) \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac(\ub370\uc774\ud130 \ud1b5\ud569, \ucd95\uc18c, \ubcc0\ud658)\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc774 \uc911 \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac\ub97c \uc704\ud574\uc11c\ub294 (1) \ubcc0\uc218 \uc120\ud0dd, (2) \ucc28\uc6d0 \ucd95\uc18c, (3) \ud30c\uc0dd \ubcc0\uc218 \uc0dd\uc131, (4) \ubcc0\uc218 \ubcc0\ud658, (5) \ubd88\uade0\ud615 \ub370\uc774\ud130 \ucc98\ub9ac\uac00 \uace0\ub824\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. <\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\ubaa9\ucc28<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#1_%EB%8D%B0%EC%9D%B4%ED%84%B0_%EC%A0%84%EC%B2%98%EB%A6%AC_%E2%80%93_%EB%B6%84%EC%84%9D_%EB%B3%80%EC%88%98_%EC%B2%98%EB%A6%AC\" title=\"1. \ub370\uc774\ud130 \uc804\ucc98\ub9ac &#8211; \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac\">1. \ub370\uc774\ud130 \uc804\ucc98\ub9ac &#8211; \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#1_%EB%B3%80%EC%88%98_%EC%84%A0%ED%83%9DFeature_Selection\" title=\"1) \ubcc0\uc218 \uc120\ud0dd(Feature Selection)\">1) \ubcc0\uc218 \uc120\ud0dd(Feature Selection)<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#1-1_%ED%95%84%ED%84%B0_%EA%B8%B0%EB%B2%95Filter\" title=\"1-1) \ud544\ud130 \uae30\ubc95(Filter)\">1-1) \ud544\ud130 \uae30\ubc95(Filter)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#1-2_%EB%9E%98%ED%8D%BC_%EA%B8%B0%EB%B2%95Wrapper\" title=\"1-2) \ub798\ud37c \uae30\ubc95(Wrapper)\">1-2) \ub798\ud37c \uae30\ubc95(Wrapper)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#1-3_%EC%9E%84%EB%B2%A0%EB%94%94%EB%93%9C_%EA%B8%B0%EB%B2%95Embedded\" title=\"1-3) \uc784\ubca0\ub514\ub4dc \uae30\ubc95(Embedded)\">1-3) \uc784\ubca0\ub514\ub4dc \uae30\ubc95(Embedded)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#2_%EC%B0%A8%EC%9B%90_%EC%B6%95%EC%86%8C\" title=\"2) \ucc28\uc6d0 \ucd95\uc18c\">2) \ucc28\uc6d0 \ucd95\uc18c<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#2-1_%EC%A3%BC%EC%84%B1%EB%B6%84_%EB%B6%84%EC%84%9DPCA\" title=\"2-1) \uc8fc\uc131\ubd84 \ubd84\uc11d(PCA)\">2-1) \uc8fc\uc131\ubd84 \ubd84\uc11d(PCA)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#2-2_%EC%9A%94%EC%9D%B8_%EB%B6%84%EC%84%9DFactor_Analysis\" title=\"2-2) \uc694\uc778 \ubd84\uc11d(Factor Analysis)\">2-2) \uc694\uc778 \ubd84\uc11d(Factor Analysis)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/#2-3_%EB%8B%A4%EC%B0%A8%EC%9B%90_%EC%B2%99%EB%8F%84%EB%B2%95MDS\" title=\"2-3) \ub2e4\ucc28\uc6d0 \ucc99\ub3c4\ubc95(MDS)\">2-3) \ub2e4\ucc28\uc6d0 \ucc99\ub3c4\ubc95(MDS)<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%EB%8D%B0%EC%9D%B4%ED%84%B0_%EC%A0%84%EC%B2%98%EB%A6%AC_%E2%80%93_%EB%B6%84%EC%84%9D_%EB%B3%80%EC%88%98_%EC%B2%98%EB%A6%AC\"><\/span>1. \ub370\uc774\ud130 \uc804\ucc98\ub9ac &#8211; \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%EB%B3%80%EC%88%98_%EC%84%A0%ED%83%9DFeature_Selection\"><\/span>1) \ubcc0\uc218 \uc120\ud0dd(Feature Selection)<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\ubcc0\uc218\ub294 Variable(\ud1b5\uacc4\ud559) \ub610\ub294 Feature(\uba38\uc2e0\ub7ec\ub2dd)\ub85c \ubd88\ub9ac\uba70, \uacb0\uacfc \ub610\ub294 \uc6d0\uc778\uc774 \ub418\ub294 \ubcc0\uc218\uc778\uc9c0\uc5d0 \ub530\ub77c \ubd88\ub9ac\ub294 \uba85\uce6d\uc774 \uac01\uae30 \ub2e4\ub985\ub2c8\ub2e4. <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>(\uc6d0\uc778\/\uc785\ub825) : \ub3c5\ub9bd\ubcc0\uc218, \ubcc0\uc218, \uc18d\uc131, \uc608\uce21\ubcc0\uc218, \uc124\uba85\ubcc0\uc218, \uad00\uce21\uce58<\/li>\n\n\n\n<li>(\uacb0\uacfc\/\ucd9c\ub825) : \uc885\uc18d\ubcc0\uc218, \ub77c\ubca8, \ud074\ub798\uc2a4, \ubaa9\ud46f\uac12, \uacb0\uacfc\ubcc0\uc218, \ubc18\uc751\ubcc0\uc218<\/li>\n<\/ul>\n\n\n\n<p>\ub370\uc774\ud130\ub97c \ubd84\uc11d\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ubcc0\uc218\uac00 \ub9ce\uc73c\uba74 \uc88b\uaca0\uc9c0\ub9cc, \ud544\uc694 \uc774\uc0c1\uc73c\ub85c \ubcc0\uc218, \ub370\uc774\ud130\uac00 \ub9ce\uc544\uc9c8 \uacbd\uc6b0 \ud6c8\ub828 \uc2dc\uac04\ub3c4 \uc624\ub798 \uac78\ub9ac\uace0, \ubaa8\ub378 \uc815\ud655\ub3c4, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\uc218 \uc120\ud0dd\uc744 \ud560 \uacbd\uc6b0, \ud6c8\ub828 \uc2dc\uac04\uacfc \uacfc\ub300\uc801\ud569\uc744 \uc904\uc77c \uc218 \uc788\uc73c\uba70, \ubaa8\ub378\uc758 \uc815\ud655\ub3c4\uc640 \uc131\ub2a5\uc744 \ub04c\uc5b4 \uc62c\ub9ac\ub294\ub370 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<p>\ubcc0\uc218 \uc120\ud0dd \uae30\ubc95\uc740 \ud06c\uac8c (1) \ud544\ud130 \uae30\ubc95, (2) \ub798\ud37c \uae30\ubc95, (3) \uc784\ubca0\ub514\ub4dc \uae30\ubc95\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1-1_%ED%95%84%ED%84%B0_%EA%B8%B0%EB%B2%95Filter\"><\/span>1-1) \ud544\ud130 \uae30\ubc95(Filter)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\uc8fc\ub85c \ub798\ud37c \uae30\ubc95 \uc804\uc5d0 \uc0ac\uc6a9\ub418\uba70, \uce74\uc774\uc81c\uacf1 \uac80\uc815, \ud53c\uc154 \uc2a4\ucf54\uc5b4, \uc0c1\uad00\uacc4\uc218 \ub4f1 \ud1b5\uacc4\uc801 \uce21\uc815 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1-2_%EB%9E%98%ED%8D%BC_%EA%B8%B0%EB%B2%95Wrapper\"><\/span>1-2) \ub798\ud37c \uae30\ubc95(Wrapper)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\ubcc0\uc218\uc758 \uc77c\ubd80\ub85c \ubaa8\ub378\ub9c1 \uc791\uc5c5\uc744 \ubc18\ubcf5\ud558\uba74\uc11c, \uac00\uc7a5 \uc131\ub2a5\uc774 \uc88b\uc740 \ubcc0\uc218 \uc870\ud569\uc744 \ucc3e\uc544\uac00\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \ub798\ud37c \uae30\ubc95\uc5d0\ub294 \uc804\uc9c4 \uc120\ud0dd\ubc95, \ud6c4\uc9c4 \uc81c\uac70\ubc95, \ub2e8\uacc4\uc801 \uc120\ud0dd\ubc95\uc774 \uc788\uc73c\uba70, \ud544\ud130 \uae30\ubc95\ubcf4\ub2e4 \uc608\uce21 \uc815\ud655\ub3c4\uac00 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc804\uc9c4 \uc120\ud0dd\ubc95<\/strong> : \uc601 \ubaa8\ud615(\uc808\ud3b8\ub9cc \uc788\ub294 \ubaa8\ub378)\uc5d0\uc11c \uc2dc\uc791\ud558\uba70, \uc885\uc18d\ubcc0\uc218\uc640 \ub2e8\uc21c\uc0c1\uad00\uacc4\uc218\uc758 \uc808\ub313\uac12\uc774 \uac00\uc7a5 \ud070 \ubcc0\uc218\ub97c \ucc28\ub840\ub85c \ucd94\uac00\ud558\uba70, \ud55c\ubc88 \ucd94\uac00\ub41c \ubcc0\uc218\ub294 \uc81c\uac70\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud6c4\uc9c4 \uc81c\uac70\ubc95<\/strong> : \uc804\uccb4\ubaa8\ub378(\ubaa8\ub4e0 \ub3c5\ub9bd\ubcc0\uc218 \ud3ec\ud568)\uc5d0\uc11c \uc2dc\uc791\ud558\uba70, \uc885\uc18d\ubcc0\uc218\uc640 \ub2e8\uc21c\uc0c1\uad00\uacc4\uc218\uc758 \uc808\ub313\uac12\uc774 \uac00\uc7a5 \uc791\uc740 \ubcc0\uc218\ub97c \uc81c\uac70\ud558\uba70, \ud55c\ubc88 \uc81c\uac70\ub41c \ubcc0\uc218\ub294 \ucd94\uac00\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. <\/li>\n\n\n\n<li><strong>\ub2e8\uacc4\uc801 \uc120\ud0dd\ubc95<\/strong> : \uc804\uc9c4 \uc120\ud0dd\ubc95\uacfc \ud6c4\uc9c4 \uc81c\uac70\ubc95\uc744 \ubcf4\uc644\ud55c \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc804\uccb4\ubaa8\ub378(\ubaa8\ub4e0 \ub3c5\ub9bd\ubcc0\uc218 \ud3ec\ud568)\uc5d0\uc11c \uc2dc\uc791\ud558\uba70, \uc885\uc18d\ubcc0\uc218\uc640 \ub2e8\uc21c\uc0c1\uad00\uacc4\uc218\uc758 \uc808\ub313\uac12\uc774 \uac00\uc7a5 \uc791\uc740 \ubcc0\uc218\ub97c \uc81c\uac70\ud558\uac70\ub098, \uc808\ub313\uac12\uc774 \uac00\uc7a5 \ud070 \ubcc0\uc218\ub97c \ucc28\ub840\ub85c \ucd94\uac00\ud569\ub2c8\ub2e4. <\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1-3_%EC%9E%84%EB%B2%A0%EB%94%94%EB%93%9C_%EA%B8%B0%EB%B2%95Embedded\"><\/span>1-3) \uc784\ubca0\ub514\ub4dc \uae30\ubc95(Embedded)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\ud544\ud130\uc640 \ub798\ud37c \uae30\ubc95\uc758 \uc7a5\uc810\uc744 \uacb0\ud569\ud55c \uac83\uc73c\ub85c \ubaa8\ub378\uc758 \ud559\uc2b5, \uc0dd\uc131 \uacfc\uc815\uc5d0\uc11c \ucd5c\uc801\uc758 \ubcc0\uc218\ub97c \uc120\ud0dd\ud569\ub2c8\ub2e4. \ub300\ud45c\uc801\uc73c\ub85c Ridge, Lasso, ElasticNet, \uc758\uc0ac\uacb0\uc815\ub098\ubb34\uac00 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_%EC%B0%A8%EC%9B%90_%EC%B6%95%EC%86%8C\"><\/span>2) \ucc28\uc6d0 \ucd95\uc18c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>\ubcc0\uc218\uc758 \uc218(\ucc28\uc6d0)\uac00 \ub9ce\uc544\uc9c8\uc218\ub85d \ubaa8\ub378\uc758 \uc815\ud655\ub3c4\uac00 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc73c\uba70(\ucc28\uc6d0\uc758 \uc800\uc8fc), \ub3c5\ub9bd\ubcc0\uc218 \uac04\uc5d0 \uc0c1\uad00\uad00\uacc4\uac00 \ub192\uc744 \uacbd\uc6b0\uc5d0\ub3c4 \ubaa8\ub378\uc758 \uc815\ud655\ub3c4\uc640 \uc2e0\ub8b0\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4(\ub2e4\uc911 \uacf5\uc120\uc131). \ucc28\uc6d0 \ucd95\uc18c(Dimensionality Reduction)\ub294 \ubaa9\uc801\uc5d0 \ub530\ub77c \ubcc0\uc218\uc758 \uc591\uc744 \uc904\uc774\ub294 \ud1b5\uacc4 \uae30\ubc95\uc785\ub2c8\ub2e4. <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ucc28\uc6d0\uc758 \uc800\uc8fc(Curse of Dimensionality)<\/strong> : \ud559\uc2b5\ub370\uc774\ud130\uc758 \uc218\uac00 \ucc28\uc6d0\uc758 \uc218\ubcf4\ub2e4 \uc801\uc5b4\uc838\uc11c \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c0\ub294 \uac83\uc73c\ub85c \ubd88\ud544\uc694\ud55c \uc0d8\ud50c\uc774 \ub9ce\uc544\uc9c4\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574\uc11c\ub294 \ucc28\uc6d0\uc744 \uc904\uc774\uac70\ub098 \ub370\uc774\ud130 \uc218\ub97c \ub298\ub9ac\ub294 \ubc29\ubc95\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub2e4\uc911\uacf5\uc120\uc131(Multicollinearity)<\/strong> &#8211; \uc77c\ubd80 \uc124\uba85\ubcc0\uc218\uac00 \ub2e4\ub978 \uc124\uba85\ubcc0\uc218\uc640 \uc0c1\uad00\uad00\uacc4\uac00 \ub192\uc744 \ub54c \ubc1c\uc0dd\ud558\ub294\ub370, \ub2e4\uc911\uacf5\uc120\uc131\uc774 \ub192\uc744 \uacbd\uc6b0 \ud68c\uadc0\uacc4\uc218\uc758 \ubd84\uc0b0\uc774 \uc99d\uac00\ud558\uc5ec \ubaa8\ub378\uc774 \ubd88\uc548\uc815\ud558\uace0 \ud574\uc11d\ud558\uae30\uac00 \uc5b4\ub824\uc6b8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc0c1\uad00\uad00\uacc4\uac00 \ub192\uc740 \uc124\uba85\ubcc0\uc218\ub97c \uc81c\uac70\ud558\uac70\ub098, \ubcc0\uc218 \uc120\ud0dd \uae30\ubc95, \ucc28\uc6d0 \ucd95\uc18c \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/li>\n<\/ul>\n\n\n\n<p>\ucc28\uc6d0 \ucd95\uc18c\uc758 \ubc29\ubc95\uc5d0\ub294 \uc544\ub798 \ubc29\ubc95\ub4e4\uc774 \uc788\uc73c\uba70, \uac01 \uae30\ubc95 \uac04\uc758 \ucc28\uc774\uc810\uc744 \uc219\uc9c0\ud574\ub450\uba74 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2-1_%EC%A3%BC%EC%84%B1%EB%B6%84_%EB%B6%84%EC%84%9DPCA\"><\/span>2-1) \uc8fc\uc131\ubd84 \ubd84\uc11d(PCA)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\ubd84\ud3ec\ub41c \ub370\uc774\ud130\ub4e4\uc758 \ud2b9\uc131\uc744 \ub300\ud45c\ud560 \uc218 \uc788\ub294 \uc0c8\ub85c\uc6b4 \ud2b9\uc9d5(\uc8fc\uc131\ubd84)\uc744 \ucc3e\ub294 \uac83\uc73c\ub85c \ubcc0\uc218\ub4e4\uc758 \uc120\ud615\uacb0\ud569\uc73c\ub85c \uc774\ub904\uc838 \uc788\uc2b5\ub2c8\ub2e4. \ubcc0\uc218\ub4e4\uc758 \uacf5\ubd84\uc0b0 \ud589\ub82c \ub610\ub294 \uc0c1\uad00\ud589\ub82c\uc744 \uc0ac\uc6a9\ud558\uba70, \uac70\ub9ac\ub97c \uc0ac\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0 \ucc99\ub3c4\uc758 \uc601\ud5a5\uc744 \ubc1b\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<p>\uc8fc\uc131\ubd84\uc744 \uacb0\uc815\ud558\ub294 \uae30\uc900\uc740 (1) \ub204\uc801 \ubd84\uc0b0 \ube44\uc728\uc774 70~90% \uc0ac\uc774, (2) \uace0\uc733\uac12(\ubd84\uc0b0 \ud06c\uae30)\uc774 1\ubcf4\ub2e4 \ud074 \ub54c \uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2-2_%EC%9A%94%EC%9D%B8_%EB%B6%84%EC%84%9DFactor_Analysis\"><\/span>2-2) \uc694\uc778 \ubd84\uc11d(Factor Analysis)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\ubcc0\uc218\ub4e4 \uac04\uc758 \uc0c1\uad00\uad00\uacc4\ub97c \ubd84\uc11d\ud558\uace0, \uacf5\ud1b5\ucc28\uc6d0\uc744 \ucd95\uc57d\ud558\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \uc694\uc778 \ubd84\uc11d\uc5d0\uc11c\ub294 \ub3c5\ub9bd\ubcc0\uc218, \uc885\uc18d\ubcc0\uc218 \uac1c\ub150\uc774 \uc5c6\uc73c\uba70, \uc8fc\ub85c \uae30\uc220 \ud1b5\uacc4\uc5d0 \uc758\ud55c \ubc29\ubc95\uc744 \uc774\uc6a9\ud569\ub2c8\ub2e4. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2-3_%EB%8B%A4%EC%B0%A8%EC%9B%90_%EC%B2%99%EB%8F%84%EB%B2%95MDS\"><\/span>2-3) \ub2e4\ucc28\uc6d0 \ucc99\ub3c4\ubc95(MDS)<span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>\ub2e4\ucc28\uc6d0 \ucc99\ub3c4\ubc95(Multi-Dimensional Scaling)\uc740 \uac1d\uccb4 \uac04\uc758 \uadfc\uc811\uc131\uc744 \uc2dc\uac01\uc801\uc73c\ub85c \ud45c\ud604\ud558\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \uac1d\uccb4 \uac04\uc758 \uac70\ub9ac\ub294 \uc720\ud074\ub9ac\ub4dc \uac70\ub9ac\uc640 \uc720\uc0ac\ub3c4\ub97c \uc0ac\uc6a9\ud574 \uad6c\ud558\uba70, \uc801\ud569\uc815\ub3c4(\uc2a4\ud2b8\ub808\uc2a4 \uac12)\uac00 0\uc5d0 \uac00\uae4c\uc6b8\uc218\ub85d \uc88b\ub2e4\uace0 \ud574\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<p>\uc774 \uc678\uc5d0\ub3c4 \ucc28\uc6d0 \ucd95\uc18c \ubc29\ubc95\uc5d0\ub294 \ud2b9\uc774\uac12 \ubd84\ud574(SVD), \uc120\ud615 \ud310\ubcc4 \ubd84\uc11d(LDA), \ub3c5\ub9bd \uc131\ubd84 \ubd84\uc11d(ICA)\uac00 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<p>[\uad00\ub828 \ucc38\uace0 \uc601\uc0c1]  <a href=\"https:\/\/youtu.be\/x8QGgChSI30?si=-68LxNpCxG2M60FY\" data-type=\"link\" data-id=\"https:\/\/youtu.be\/x8QGgChSI30?si=-68LxNpCxG2M60FY\" target=\"_blank\" rel=\"noopener\">2023 \ube45\ub370\uc774\ud130\ubd84\uc11d\uae30\uc0ac \ud544\uae30 2\uacfc\ubaa9] Chapter 1. 02. \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac 1<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub370\uc774\ud130 \uc804\ucc98\ub9ac \uacfc\uc815\uc740 \ud06c\uac8c (1) \ub370\uc774\ud130 \uc815\uc81c(\uad00\ub828 \ud3ec\uc2a4\ud305 \ubcf4\uae30), (2) \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac(\ub370\uc774\ud130 \ud1b5\ud569, \ucd95\uc18c, \ubcc0\ud658)\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc774 \uc911 \ubd84\uc11d \ubcc0\uc218 \ucc98\ub9ac\ub97c \uc704\ud574\uc11c\ub294 (1) \ubcc0\uc218 \uc120\ud0dd, (2) \ucc28\uc6d0 \ucd95\uc18c, (3) \ud30c\uc0dd \ubcc0\uc218 \uc0dd\uc131, (4) \ubcc0\uc218 \ubcc0\ud658, (5) \ubd88\uade0\ud615 \ub370\uc774\ud130 \ucc98\ub9ac\uac00<\/p>\n<div class=\"read-more-section\"><a class=\"custom-readmore-button\" href=\"https:\/\/awesome-note.com\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%a0%84%ec%b2%98%eb%a6%ac2-%eb%b6%84%ec%84%9d-%eb%b3%80%ec%88%98-%ec%b2%98%eb%a6%ac%eb%b3%80%ec%88%98-%ec%84%a0%ed%83%9d-%ec%b0%a8%ec%9b%90-%ec%b6%95%ec%86%8c\/\">\uc790\uc138\ud788 \ubcf4\uae30 &rarr;<\/a><\/div>\n","protected":false},"author":1,"featured_media":266,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[94,76,90,87,86,15,93,91,92,88,89],"class_list":["post-188","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bigdata","tag-94","tag-76","tag-90","tag-87","tag-86","tag-15","tag-93","tag-91","tag-92","tag-88","tag-89","infinite-scroll-item","resize-featured-image"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/awesome-note.com\/wp-content\/uploads\/2023\/09\/\ub370\uc774\ud130-\uc804\ucc98\ub9ac_\ubd84\uc11d-\ubcc0\uc218-\ucc98\ub9ac_\ubcc0\uc218-\uc120\ud0dd-\ucc28\uc6d0-\ucd95\uc18c.png","_links":{"self":[{"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/posts\/188"}],"collection":[{"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/comments?post=188"}],"version-history":[{"count":5,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/posts\/188\/revisions"}],"predecessor-version":[{"id":194,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/posts\/188\/revisions\/194"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/media\/266"}],"wp:attachment":[{"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/media?parent=188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/categories?post=188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/awesome-note.com\/wp-json\/wp\/v2\/tags?post=188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}