{"id":29189,"date":"2024-10-27T16:17:12","date_gmt":"2024-10-27T16:17:12","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=29189"},"modified":"2024-11-26T06:53:43","modified_gmt":"2024-11-26T06:53:43","slug":"%eb%a8%b8%ec%8b%a0%eb%9f%ac%eb%8b%9d-%eb%b0%8f-%eb%94%a5%eb%9f%ac%eb%8b%9d-%ec%95%8c%ea%b3%a0%eb%a6%ac%ec%a6%98-%ed%8a%b8%eb%a0%88%ec%9d%b4%eb%94%a9-%ec%95%99%ec%83%81%eb%b8%94-%eb%aa%a8%eb%8d%b8","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/29189\/","title":{"rendered":"\uba38\uc2e0\ub7ec\ub2dd \ubc0f \ub525\ub7ec\ub2dd \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529, \uc559\uc0c1\ube14 \ubaa8\ub378\uc758 \uc131\uacfc\uac00 \ub354 \uc88b\uc740 \uc774\uc720"},"content":{"rendered":"<p><body><\/p>\n<p>\ucd5c\uadfc \uba87 \ub144 \uac04 \uae08\uc735 \uc2dc\uc7a5\uc5d0\uc11c\uc758 \ud000\ud2b8 \ub9e4\ub9e4 \uc804\ub7b5\uc774 \uac01\uad11\ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc804\ub7b5\ub4e4\uc740 \uc54c\uace0\ub9ac\uc998, \uba38\uc2e0\ub7ec\ub2dd, \ub525\ub7ec\ub2dd\uc744 \uae30\ubc18\uc73c\ub85c \ud558\uc5ec \ub370\uc774\ud130\uc5d0\uc11c \uc778\uc0ac\uc774\ud2b8\ub97c \ucd94\ucd9c\ud558\uace0, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \uc790\ub3d9\ud654\ub41c \ub9e4\ub9e4\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \ud2b9\ud788, \uc559\uc0c1\ube14 \ubaa8\ub378(Ensemble Models)\uc740 \ub525\ub7ec\ub2dd \ubc0f \uba38\uc2e0\ub7ec\ub2dd \uc54c\uace0\ub9ac\uc998\uc5d0\uc11c \ub6f0\uc5b4\ub09c \uc131\uacfc\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 \uc559\uc0c1\ube14 \ubaa8\ub378\uc774 \uc5b4\ub5bb\uac8c \ub354 \ub098\uc740 \uc131\uacfc\ub97c \ub0b4\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc774\ub97c \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529\uc5d0 \uc5b4\ub5bb\uac8c \uc801\uc6a9\ud560 \uc218 \uc788\ub294\uc9c0\ub97c \uae4a\uc774 \uc788\uac8c \uc54c\uc544\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>1. \uba38\uc2e0\ub7ec\ub2dd\uacfc \ub525\ub7ec\ub2dd\uc758 \uae30\ubcf8 \uac1c\ub150<\/h2>\n<p>\uba38\uc2e0\ub7ec\ub2dd(Machine Learning)\uc740 \ub370\uc774\ud130\ub97c \ud1b5\ud574 \ud328\ud134\uc744 \ud559\uc2b5\ud558\ub294 \ucef4\ud4e8\ud130 \uacfc\ud559\uc758 \ud55c \ubd84\uc57c\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uba38\uc2e0\ub7ec\ub2dd\uc740 \uac10\ub3c5(supervised) \ud559\uc2b5, \ube44\uac10\ub3c5(unsupervised) \ud559\uc2b5, \uac15\ud654(reinforcement) \ud559\uc2b5\uc73c\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>1.1 \uac10\ub3c5 \ud559\uc2b5\uacfc \ube44\uac10\ub3c5 \ud559\uc2b5<\/h3>\n<ul>\n<li><strong>\uac10\ub3c5 \ud559\uc2b5(Supervised Learning):<\/strong> \uc785\ub825 \ub370\uc774\ud130\uc640 \uc815\ub2f5 \ub808\uc774\ube14\uc774 \uc788\ub294 \uacbd\uc6b0, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \ud559\uc2b5\ud558\uc5ec \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130\uc758 \uc815\ub2f5\uc744 \uc608\uce21\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ube44\uac10\ub3c5 \ud559\uc2b5(Unsupervised Learning):<\/strong> \uc815\ub2f5 \ub808\uc774\ube14 \uc5c6\uc774 \ud328\ud134\uc774\ub098 \uad6c\uc870\ub97c \ud30c\uc545\ud558\uae30 \uc704\ud55c \ud559\uc2b5\uc785\ub2c8\ub2e4. \ud074\ub7ec\uc2a4\ud130\ub9c1(clustering)\uc774\ub098 \ucc28\uc6d0 \ucd95\uc18c(dimensionality reduction) \uae30\ubc95\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>1.2 \ub525\ub7ec\ub2dd(Deep Learning)<\/h3>\n<p>\ub525\ub7ec\ub2dd\uc740 \uc778\uacf5 \uc2e0\uacbd\ub9dd\uc744 \uae30\ubc18\uc73c\ub85c \ud55c \uba38\uc2e0\ub7ec\ub2dd\uc758 \ud55c \ubd84\uc57c\ub85c, \ub2e4\uce35 \uc2e0\uacbd\ub9dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubcf5\uc7a1\ud55c \ud328\ud134\uc744 \ud559\uc2b5\ud569\ub2c8\ub2e4. \ud2b9\ud788, \uc774\ubbf8\uc9c0 \uc778\uc2dd, \uc790\uc5f0\uc5b4 \ucc98\ub9ac(NLP), \uc2dc\uacc4\uc5f4 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0\uc11c \ub6f0\uc5b4\ub09c \uc131\uacfc\ub97c \ubcf4\uc5ec\uc8fc\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>2. \uc559\uc0c1\ube14 \ubaa8\ub378\uc758 \uc774\ud574<\/h2>\n<p>\uc559\uc0c1\ube14 \ubaa8\ub378\uc740 \ub3c5\ub9bd\uc801\uc73c\ub85c \ud559\uc2b5\ud55c \uc5ec\ub7ec \ubaa8\ub378\uc744 \uacb0\ud569\ud558\uc5ec \ub354 \ub098\uc740 \uc131\ub2a5\uc744 \ub0b4\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \uac1c\ubcc4 \ubaa8\ub378(\uae30\ubcf8 \ubaa8\ub378)\uc758 \uc608\uce21\uac12\uc744 \uc870\ud569\ud558\uc5ec \ucd5c\uc885 \uc608\uce21\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. \uc559\uc0c1\ube14 \ubaa8\ub378\uc758 \uc8fc\uc694 \uc7a5\uc810\uc740 \ud3b8\ud5a5(bias)\uacfc \ubd84\uc0b0(variance)\uc758 \uade0\ud615\uc744 \ud1b5\ud574 Overfitting\uc744 \ubc29\uc9c0\ud558\uace0, \uc77c\ubc18\ud654 \uc131\ub2a5\uc744 \ub192\uc774\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>2.1 \uc559\uc0c1\ube14 \uae30\ubc95\uc758 \uc885\ub958<\/h3>\n<ul>\n<li><strong>\ubc30\uae45(Bagging):<\/strong> \ub3c5\ub9bd\uc801\uc778 \uae30\ubcf8 \ubaa8\ub378\uc744 \ud559\uc2b5\uc2dc\ud0a4\uace0, \uc774\ub97c \ud3c9\uade0\ub0b4\uc5b4 \uc608\uce21\ud569\ub2c8\ub2e4. \ub79c\ub364 \ud3ec\ub808\uc2a4\ud2b8(Random Forest)\uac00 \ub300\ud45c\uc801\uc778 \ubc30\uae45 \uae30\ubc95\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ubd80\uc2a4\ud305(Boosting):<\/strong> \uc774\uc804 \ubaa8\ub378\uc758 \ud2c0\ub9b0 \uc608\uce21\uc5d0 \ub354 \ub9ce\uc740 \uac00\uc911\uce58\ub97c \ubd80\uc5ec\ud558\uc5ec \ub2e4\uc74c \ubaa8\ub378\uc744 \ud559\uc2b5\uc2dc\ud0b5\ub2c8\ub2e4. XGBoost, AdaBoost\uac00 \uc5ec\uae30\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc2a4\ud0dc\ud0b9(Stacking):<\/strong> \uc11c\ub85c \ub2e4\ub978 \ubaa8\ub378\uc758 \uc608\uce21\uc744 \uba54\ud0c0 \ubaa8\ub378(Meta Model)\uc5d0 \ud559\uc2b5\uc2dc\ucf1c \ucd5c\uc885 \uc608\uce21\uc744 \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>3. \uc65c \uc559\uc0c1\ube14 \ubaa8\ub378\uc774 \ub354 \uc6b0\uc218\ud55c \uc131\uacfc\ub97c \ub0b4\ub294\uac00?<\/h2>\n<p>\uc5ec\ub7ec \uc5f0\uad6c \uacb0\uacfc\uc5d0 \ub530\ub974\uba74, \uc559\uc0c1\ube14 \ubaa8\ub378\uc740 \uac1c\ubcc4 \ubaa8\ub378\ubcf4\ub2e4 \ub354 \uc548\uc815\uc801\uc774\uba70, \uc131\uacfc\uac00 \uc77c\uad00\ub418\uac8c \ub192\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc774\uc720\ub4e4\uc5d0\uc11c \uae30\uc778\ud569\ub2c8\ub2e4.<\/p>\n<h3>3.1 \ub2e4\uc591\uc131\uc758 \uc6d0\ub9ac<\/h3>\n<p>\uc559\uc0c1\ube14 \ubaa8\ub378\uc758 \ud575\uc2ec \uc6d0\ub9ac \uc911 \ud558\ub098\ub294 \ub2e4\uc591\uc131\uc785\ub2c8\ub2e4. \uc11c\ub85c \ub2e4\ub978 \ubaa8\ub378\uc774 \uc11c\ub85c \ub2e4\ub978 \ud2b9\uc131\uc744 \ud559\uc2b5\ud558\uae30 \ub54c\ubb38\uc5d0, \uc774\ub4e4\uc744 \uc870\ud569\ud568\uc73c\ub85c\uc368 \uc77c\ubc18\ud654 \uc131\ub2a5\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud558\ub098\uc758 \ubaa8\ub378\uc774 \ud2b9\uc815 \ud328\ud134\uc744 \uc798 \uc778\uc2dd\ud558\uc9c0\ub9cc \ub2e4\ub978 \ud328\ud134\uc5d0\uc11c\ub294 \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c0\ub294 \uacbd\uc6b0, \ub2e4\uc591\ud55c \ubaa8\ub378\ub4e4\uc774 \uc11c\ub85c\uc758 \ubd80\uc871\ud55c \ubd80\ubd84\uc744 \ubcf4\uc644\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n<h3>3.2 \ud3b8\ud5a5-\ubd84\uc0b0 \ud2b8\ub808\uc774\ub4dc\uc624\ud504<\/h3>\n<p>\uae30\uacc4 \ud559\uc2b5\uc5d0\uc11c\uc758 \uc8fc\uc694 \uac1c\ub150\uc778 \ud3b8\ud5a5\uacfc \ubd84\uc0b0\uc758 \uade0\ud615\uc744 \ub9de\ucd94\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc559\uc0c1\ube14 \ubaa8\ub378\uc740 \ub3c5\ub9bd\uc801\uc778 \ubaa8\ub378\uc758 \uc870\ud569\uc744 \ud1b5\ud574 \ud3b8\ud5a5(bias)\uc744 \uc904\uc774\uba74\uc11c\ub3c4 \ubd84\uc0b0(variance)\uc744 \ub0ae\ucd94\uac8c \ub429\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ub354 \ub0ae\uc740 \uc608\uce21 \uc624\ub958\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n<h2>4. \uc559\uc0c1\ube14 \ubaa8\ub378\uc744 \ud65c\uc6a9\ud55c \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529<\/h2>\n<p>\uc559\uc0c1\ube14 \ubaa8\ub378\uc744 \ud65c\uc6a9\ud55c \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\ubc95\uc73c\ub85c \uc811\uadfc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>4.1 \ub370\uc774\ud130 \uc900\ube44 \ubc0f \uc804\ucc98\ub9ac<\/h3>\n<p>\ub370\uc774\ud130\ub294 \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529\uc5d0\uc11c \uac00\uc7a5 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. \ub370\uc774\ud130 \uc218\uc9d1 \ud6c4, \ub370\uc774\ud130 \ud074\ub9ac\ub2dd\uacfc \uc804\ucc98\ub9ac\uac00 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uacb0\uce21\uce58 \ucc98\ub9ac, \uc774\uc0c1\uce58 \uc81c\uac70, \ud2b9\uc131 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ub4f1\uc744 \ud1b5\ud574 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub370\uc774\ud130\ub97c \uc900\ube44\ud569\ub2c8\ub2e4.<\/p>\n<h3>4.2 \ubaa8\ub378 \uad6c\ucd95<\/h3>\n<p>\uc5ec\ub7ec \uac1c\uc758 \uae30\ubcf8 \ubaa8\ub378\uc744 \uc120\ud0dd\ud558\uc5ec \uc559\uc0c1\ube14 \ubaa8\ub378\uc744 \uad6c\ucd95\ud569\ub2c8\ub2e4. \uae30\ubcf8 \ubaa8\ub378\uc5d0\ub294 \ub79c\ub364 \ud3ec\ub808\uc2a4\ud2b8, SVM, LSTM \ub4f1 \ub2e4\uc591\ud55c \uc54c\uace0\ub9ac\uc998\uc744 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \ubaa8\ub378\uc758 \ud558\uc774\ud37c\ud30c\ub77c\ubbf8\ud130\ub97c \ud29c\ub2dd\ud558\uc5ec \ucd5c\uc801\uc758 \uc131\ub2a5\uc744 \ub0bc \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n<h3>4.3 \ubaa8\ub378 \ud3c9\uac00<\/h3>\n<p>\ubaa8\ub378\uc744 \ud3c9\uac00\ud560 \ub54c\ub294 \uacfc\uac70 \ub370\uc774\ud130\ub97c \ud1b5\ud574 \ubc31\ud14c\uc2a4\ud2b8(backtesting)\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc131\uacfc \uc9c0\ud45c, \uc608\ub97c \ub4e4\uc5b4 \uc0e4\ud504 \ube44\uc728(Sharpe Ratio), \ucd5c\ub300 \ub099\ud3ed(Max Drawdown) \ub4f1\uc744 \ud1b5\ud574 \ubaa8\ub378\uc758 \ud2b8\ub808\uc774\ub529 \uc131\uacfc\ub97c \ud3c9\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>4.4 \ub9ac\ubc38\ub7f0\uc2f1 \uc804\ub7b5<\/h3>\n<p>\uc8fc\uae30\uc801\uc73c\ub85c \ubaa8\ub378\uc758 \uc608\uce21 \uc131\uacfc\ub97c \ud3c9\uac00\ud558\uace0, \uc131\uacfc\uac00 \ub0ae\uc740 \ubaa8\ub378\uc740 \uad50\uccb4\ud558\uac70\ub098 \uac00\uc911\uce58\ub97c \uc870\uc808\ud558\uc5ec \ub9ac\ubc38\ub7f0\uc2f1\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uc2dc\uc7a5 \ud658\uacbd\uc774 \ubcc0\ud654\ud558\uae30 \ub54c\ubb38\uc5d0 \uc9c0\uc18d\uc801\uc778 \ubaa8\ub378 \uad00\ub9ac\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2>5. \uc559\uc0c1\ube14 \ubaa8\ub378\uc758 \ubbf8\ub798<\/h2>\n<p>\uba38\uc2e0\ub7ec\ub2dd \ubc0f \ub525\ub7ec\ub2dd \uae30\uc220\uc758 \ubc1c\uc804\uacfc \ud568\uaed8 \uc559\uc0c1\ube14 \ubaa8\ub378\uc740 \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529\uc758 \uc911\uc694\ud55c \ubd80\ubd84\uc73c\ub85c \uc790\ub9ac\uc7a1\uc744 \uac83\uc785\ub2c8\ub2e4. \ub354 \ub9ce\uc740 \ub370\uc774\ud130\uc640 \ubcf5\uc7a1\ud55c \uc2dc\uc7a5 \uad6c\uc870\uc5d0 \ub9de\ucdb0 \ucd5c\uc801\ud654\ub41c \uc559\uc0c1\ube14 \ubaa8\ub378\uc774 \ud544\uc694\ud558\uba70, \uc774\ub97c \uc704\ud574 \uc9c0\uc18d\uc801\uc778 \uc5f0\uad6c\uc640 \uac1c\ubc1c\uc774 \uc774\ub8e8\uc5b4\uc9c8 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>5.1 \uc9c0\uc18d \uac00\ub2a5\ud55c \uac70\ub798 \uc804\ub7b5<\/h3>\n<p>\ud2b8\ub808\uc774\ub529 \uc54c\uace0\ub9ac\uc998\uc758 \uc9c0\uc18d \uac00\ub2a5\ud55c \ubc1c\uc804\uc744 \uc704\ud574\uc11c\ub294 \uc2e0\uaddc \ub370\uc774\ud130\uc640\uc758 \ud53c\ub4dc\ubc31 \ub8e8\ud504\ub97c \uad6c\ucd95\ud558\uc5ec \ud559\uc2b5\uc744 \uc9c0\uc18d\ud574\uc57c \ud569\ub2c8\ub2e4. \uc559\uc0c1\ube14 \ubaa8\ub378\uc744 \ud65c\uc6a9\ud558\uba74 \ub354 \ub098\uc740 \uc131\uacfc\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\uc73c\uba70, \uc2dc\uc7a5\uc758 \ubcc0\ud654\uc5d0 \ube60\ub974\uac8c \uc801\uc751\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uacb0\ub860\uc801\uc73c\ub85c, \uba38\uc2e0\ub7ec\ub2dd \ubc0f \ub525\ub7ec\ub2dd \uae30\ubc18\uc758 \uc54c\uace0\ub9ac\uc998 \ud2b8\ub808\uc774\ub529\uc5d0\uc11c \uc559\uc0c1\ube14 \ubaa8\ub378\uc740 \uc131\uacfc\ub97c \uadf9\ub300\ud654\ud560 \uc218 \uc788\ub294 \ub9e4\uc6b0 \uc720\uc6a9\ud55c \ub3c4\uad6c\uc784\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc591\ud55c \ubaa8\ub378\uc744 \uc870\ud569\ud558\uc5ec \uae08\uc735 \uc2dc\uc7a5\uc5d0\uc11c\uc758 \uc608\uce21 \uc815\ud655\uc131\uc744 \ub192\uc774\uace0, \ub354 \ub098\uc544\uac00 \uc790\ub3d9\ub9e4\ub9e4 \uc2dc\uc2a4\ud15c\uc744 \uad6c\ucd95\ud558\ub294 \ub370 \ud070 \ub3c4\uc6c0\uc744 \uc904 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucd5c\uadfc \uba87 \ub144 \uac04 \uae08\uc735 \uc2dc\uc7a5\uc5d0\uc11c\uc758 \ud000\ud2b8 \ub9e4\ub9e4 \uc804\ub7b5\uc774 \uac01\uad11\ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc804\ub7b5\ub4e4\uc740 \uc54c\uace0\ub9ac\uc998, \uba38\uc2e0\ub7ec\ub2dd, \ub525\ub7ec\ub2dd\uc744 \uae30\ubc18\uc73c\ub85c \ud558\uc5ec \ub370\uc774\ud130\uc5d0\uc11c \uc778\uc0ac\uc774\ud2b8\ub97c \ucd94\ucd9c\ud558\uace0, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \uc790\ub3d9\ud654\ub41c \ub9e4\ub9e4\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \ud2b9\ud788, \uc559\uc0c1\ube14 \ubaa8\ub378(Ensemble Models)\uc740 \ub525\ub7ec\ub2dd \ubc0f \uba38\uc2e0\ub7ec\ub2dd \uc54c\uace0\ub9ac\uc998\uc5d0\uc11c \ub6f0\uc5b4\ub09c \uc131\uacfc\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 \uc559\uc0c1\ube14 \ubaa8\ub378\uc774 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