{"id":3844,"date":"2023-09-15T15:03:15","date_gmt":"2023-09-15T06:03:15","guid":{"rendered":"https:\/\/julialang.kr\/?p=3844"},"modified":"2023-09-15T15:03:17","modified_gmt":"2023-09-15T06:03:17","slug":"julia-turing-tutorial-bayesian-neural-network-%ec%9e%a5%eb%8b%a8%ec%a0%90","status":"publish","type":"post","link":"https:\/\/julialang.kr\/?p=3844","title":{"rendered":"[Julia, Turing] Tutorial \u2013 Bayesian Neural Network\u00a0\uc7a5\ub2e8\uc810"},"content":{"rendered":"\n<p>\ub370\uc774\ud130\uac00 \ub9ce\uc9c0 \uc54a\uac70\ub098 \uc81c\ud55c \uc801\uc778 \uacbd\uc6b0 \uc0c1\ub2f9\ud788 \ud6a8\uacfc\uc801 \uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\ubd88\ud655\uc2e4\uc131 \ucd94\uc815<\/strong>: BNNs\ub294 \ud30c\ub77c\ubbf8\ud130\uc758 \ubd88\ud655\uc2e4\uc131\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \ubaa8\ub378\ub9c1\ud569\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130\uac00 \uc81c\ud55c\uc801\uc77c \ub54c \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4. \uc608\uce21\uc758 \ubd88\ud655\uc2e4\uc131\uc744 \uc54c\uac8c \ub418\uba74, \ubaa8\ub378\uc758 \uc608\uce21\uc5d0 \ub300\ud55c \uc2e0\ub8b0\ub3c4\ub97c \ub354 \uc798 \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\uc624\ubc84\ud53c\ud305 \ubc29\uc9c0<\/strong>: \uc81c\ud55c\ub41c \ub370\uc774\ud130\uc5d0\uc11c \ubcf5\uc7a1\ud55c \ubaa8\ub378\uc744 \ud559\uc2b5\ud560 \ub54c \uc624\ubc84\ud53c\ud305(overfitting)\uc740 \uc8fc\uc694 \ubb38\uc81c\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. BNNs\ub294 \ud30c\ub77c\ubbf8\ud130\uc758 \ubd84\ud3ec\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc624\ubc84\ud53c\ud305\uc744 \uc790\uc5f0\uc2a4\ub7fd\uac8c \uc644\ud654\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\uc815\uaddc\ud654 \ud6a8\uacfc<\/strong>: \ubca0\uc774\uc988 \uc811\uadfc\ubc95\uc740 \ud30c\ub77c\ubbf8\ud130\uc5d0 \ub300\ud55c \uc0ac\uc804 \ubd84\ud3ec(prior)\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uc0ac\uc804 \ubd84\ud3ec\ub294 \ubaa8\ub378\uc758 \ud30c\ub77c\ubbf8\ud130\uc5d0 \ub300\ud55c \uc815\uaddc\ud654 \ud6a8\uacfc\ub97c \uc81c\uacf5\ud558\uba70, \uc774\ub294 \ub370\uc774\ud130\uac00 \uc81c\ud55c\uc801\uc77c \ub54c \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\uc561\ud2f0\ube0c \ub7ec\ub2dd<\/strong>: BNNs\uc758 \ubd88\ud655\uc2e4\uc131 \ucd94\uc815\uc740 \uc561\ud2f0\ube0c \ub7ec\ub2dd(active learning) \uc804\ub7b5\uc5d0 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ubaa8\ub378\uc774 \ubd88\ud655\uc2e4\uc131\uc774 \ub192\uc740 \ub370\uc774\ud130 \ud3ec\uc778\ud2b8\ub97c \uc2dd\ubcc4\ud558\uc5ec \ucd94\uac00\uc801\uc778 \ub808\uc774\ube14\ub9c1\uc744 \uc694\uccad\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\ub85c\ubc84\uc2a4\ud2b8\uc131<\/strong>: BNNs\ub294 \ub178\uc774\uc988\uac00 \uc788\ub294 \ub370\uc774\ud130\ub098 \uc774\uc0c1\uce58\uc5d0 \ub300\ud574 \ub354 \ub85c\ubc84\uc2a4\ud2b8(robust)\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ubaa8\ub378\uc774 \ub370\uc774\ud130\uc758 \ubd88\ud655\uc2e4\uc131\uc744 \uace0\ub824\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uadf8\ub7ec\ub098, \ubca0\uc774\uc988 \uc2e0\uacbd\ub9dd\uc740 \uacc4\uc0b0\uc801\uc73c\ub85c \ub354 \ubcf5\uc7a1\ud558\uba70, \ud6a8\uacfc\uc801\uc778 \uc0d8\ud50c\ub9c1 \ubc0f \ucd5c\uc801\ud654 \uae30\ubc95\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c, \ubca0\uc774\uc988 \uc811\uadfc\ubc95\uc758 \uc7a5\uc810\uc744 \ud65c\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc801\uc808\ud55c \ub3c4\uad6c\uc640 \uc804\ub7b5\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\uacc4\uc0b0 \ubcf5\uc7a1\uc131<\/strong>: BNNs\ub294 \uc804\ud1b5\uc801\uc778 \uc2e0\uacbd\ub9dd\uc5d0 \ube44\ud574 \uacc4\uc0b0\uc801\uc73c\ub85c \ub354 \ubcf5\uc7a1\ud569\ub2c8\ub2e4. \ud30c\ub77c\ubbf8\ud130\uc758 \ubd84\ud3ec\ub97c \ucd94\uc815\ud558\uae30 \uc704\ud574 MCMC (Markov Chain Monte Carlo)\uc640 \uac19\uc740 \uc0d8\ud50c\ub9c1 \uae30\ubc95\uc774\ub098 \ubcc0\ubd84 \ucd94\ub860(variational inference)\uacfc \uac19\uc740 \uadfc\uc0ac\uc801 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\ubc95\ub4e4\uc740 \ud559\uc2b5 \uc2dc\uac04\uc744 \uae38\uac8c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\ubaa8\ub378 \ud06c\uae30<\/strong>: BNNs\ub294 \uac01 \ud30c\ub77c\ubbf8\ud130\uc5d0 \ub300\ud55c \ubd84\ud3ec\ub97c \uc800\uc7a5\ud574\uc57c \ud558\ubbc0\ub85c, \uc804\ud1b5\uc801\uc778 \uc2e0\uacbd\ub9dd\uc5d0 \ube44\ud574 \ubaa8\ub378\uc758 \ud06c\uae30\uac00 \ud06c\uac8c \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\ud558\uc774\ud37c\ud30c\ub77c\ubbf8\ud130 \uc120\ud0dd<\/strong>: BNNs\uc5d0\uc11c\ub294 \uc0ac\uc804 \ubd84\ud3ec(prior)\uc640 \uac19\uc740 \ucd94\uac00\uc801\uc778 \ud558\uc774\ud37c\ud30c\ub77c\ubbf8\ud130\ub97c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud558\uc774\ud37c\ud30c\ub77c\ubbf8\ud130\uc758 \uc120\ud0dd\uc740 \ubaa8\ub378\uc758 \uc131\ub2a5\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\uadfc\uc0ac\uc801 \ubc29\ubc95\uc758 \ud55c\uacc4<\/strong>: \ubcc0\ubd84 \ucd94\ub860\uacfc \uac19\uc740 \uadfc\uc0ac\uc801 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \ub54c, \uc2e4\uc81c \ubd84\ud3ec\uc640 \uadfc\uc0ac \ubd84\ud3ec \uc0ac\uc774\uc5d0 \ucc28\uc774\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ubaa8\ub378\uc758 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\uad6c\ud604\uc758 \uc5b4\ub824\uc6c0<\/strong>: BNNs\ub294 \uc804\ud1b5\uc801\uc778 \uc2e0\uacbd\ub9dd\ubcf4\ub2e4 \uad6c\ud604\uc774 \ubcf5\uc7a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\ud788, \ud6a8\uacfc\uc801\uc778 \uc0d8\ud50c\ub9c1 \ubc0f \ucd5c\uc801\ud654 \uae30\ubc95\uc744 \uc0ac\uc6a9\ud558\uae30 \uc704\ud55c \uc804\ubb38 \uc9c0\uc2dd\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\ud574\uc11d\uc758 \uc5b4\ub824\uc6c0<\/strong>: BNNs\uc758 \uacb0\uacfc\ub294 \ud655\ub960 \ubd84\ud3ec\ub85c \uc81c\uacf5\ub418\ubbc0\ub85c, \uc774\ub97c \ud574\uc11d\ud558\uac70\ub098 \uc2e4\uc81c \uc751\uc6a9\uc5d0 \uc801\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \ucd94\uac00\uc801\uc778 \ucc98\ub9ac\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub370\uc774\ud130\uac00 \ub9ce\uc9c0 \uc54a\uac70\ub098 \uc81c\ud55c \uc801\uc778 \uacbd\uc6b0 \uc0c1\ub2f9\ud788 \ud6a8\uacfc\uc801 \uc785\ub2c8\ub2e4. \uc7a5\uc810 \ubd88\ud655\uc2e4\uc131 \ucd94\uc815: BNNs\ub294 \ud30c\ub77c\ubbf8\ud130\uc758 \ubd88\ud655\uc2e4\uc131\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \ubaa8\ub378\ub9c1\ud569\ub2c8\ub2e4. \uc774\ub294 \ub370\uc774\ud130\uac00 \uc81c\ud55c\uc801\uc77c \ub54c \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4. \uc608\uce21\uc758 \ubd88\ud655\uc2e4\uc131\uc744 \uc54c\uac8c \ub418\uba74, \ubaa8\ub378\uc758 \uc608\uce21\uc5d0 \ub300\ud55c \uc2e0\ub8b0\ub3c4\ub97c \ub354 \uc798 \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc624\ubc84\ud53c\ud305 \ubc29\uc9c0: \uc81c\ud55c\ub41c \ub370\uc774\ud130\uc5d0\uc11c \ubcf5\uc7a1\ud55c \ubaa8\ub378\uc744 \ud559\uc2b5\ud560 \ub54c \uc624\ubc84\ud53c\ud305(overfitting)\uc740 \uc8fc\uc694 \ubb38\uc81c\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. BNNs\ub294 \ud30c\ub77c\ubbf8\ud130\uc758 \ubd84\ud3ec\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc624\ubc84\ud53c\ud305\uc744 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[54],"tags":[],"_links":{"self":[{"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/posts\/3844"}],"collection":[{"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/julialang.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3844"}],"version-history":[{"count":1,"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/posts\/3844\/revisions"}],"predecessor-version":[{"id":3845,"href":"https:\/\/julialang.kr\/index.php?rest_route=\/wp\/v2\/posts\/3844\/revisions\/3845"}],"wp:attachment":[{"href":"https:\/\/julialang.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/julialang.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/julialang.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}