{"id":27168,"date":"2025-04-22T16:51:23","date_gmt":"2025-04-22T09:51:23","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=27168"},"modified":"2025-07-20T15:14:25","modified_gmt":"2025-07-20T08:14:25","slug":"batch-normalization-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/","title":{"rendered":"Batch Normalization l\u00e0 g\u00ec? Chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t trong h\u1ecdc s\u00e2u A-Z"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/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 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Batch-Normalization-la-gi\" >Batch Normalization l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Ly-do-nen-su-dung-Batch-Normalization\" >L\u00fd do n\u00ean s\u1eed d\u1ee5ng Batch Normalization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Batch-Normalization-hoat-dong-nhu-the-nao\" >Batch Normalization ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Loi-ich-cua-Batch-Normalization-la-gi\" >L\u1ee3i \u00edch c\u1ee7a Batch Normalization l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Thach-thuc-cua-Batch-Normalization-la-gi\" >Th\u00e1ch th\u1ee9c c\u1ee7a Batch Normalization l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Batch-Normalization-trong-cac-kien-truc-khong-phai-la-mang-tich-chap\" >Batch Normalization trong c\u00e1c ki\u1ebfn tr\u00fac kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ea1ng t\u00edch ch\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Kich-thuoc-batch-nho-va-hieu-suat-trong-thoi-gian-suy-luan\" >K\u00edch th\u01b0\u1edbc batch nh\u1ecf v\u00e0 hi\u1ec7u su\u1ea5t trong th\u1eddi gian suy lu\u1eadn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Su-danh-doi-cua-Batch-Normalization\" >S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i c\u1ee7a Batch Normalization<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Cac-bien-the-va-tien-ich-mo-rong-cua-Batch-Normalization\" >C\u00e1c bi\u1ebfn th\u1ec3 v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a Batch Normalization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Cach-giam-thieu-cac-han-che-cua-Batch-Normalization\" >C\u00e1ch gi\u1ea3m thi\u1ec3u c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a Batch Normalization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization\" >Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi tri\u1ec3n khai Batch Normalization<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Vi-tri-trong-cac-kien-truc-mang-no-ron\" >V\u1ecb tr\u00ed trong c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng n\u01a1-ron<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Anh-huong-cua-kich-thuoc-batch\" >\u1ea2nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc batch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/batch-normalization-la-gi\/#Hieu-ung-va-tac-dong-cua-dieu-chuan\" >Hi\u1ec7u \u1ee9ng v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec1u chu\u1ea9n<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Batch Normalization l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt quan tr\u1ecdng trong h\u1ecdc s\u00e2u gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 hu\u1ea5n luy\u1ec7n v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u00f4 h\u00ecnh m\u1ea1ng n\u01a1-ron. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 Batch Normalization l\u00e0 g\u00ec, bao g\u1ed3m l\u00fd do t\u1ea1i sao n\u00f3 quan tr\u1ecdng, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3, l\u1ee3i \u00edch v\u00e0 th\u00e1ch th\u1ee9c m\u00e0 k\u1ef9 thu\u1eadt n\u00e0y mang l\u1ea1i. \u0110\u1ecdc ngay nh\u00e9!<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Batch-Normalization-la-gi\"><\/span>Batch Normalization l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Batch normalization (chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t)\u00a0l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc s\u00e2u \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh m\u1ea1ng n\u01a1-ron. N\u00f3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi hu\u1ea5n luy\u1ec7n c\u00e1c m\u1ea1ng n\u01a1-ron s\u00e2u, v\u00ec c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m s\u1ef1 thay \u0111\u1ed5i n\u1ed9i b\u1ed9 (internal covariate shift) c\u00f3 th\u1ec3 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n.<\/p>\n<p>Batch normalization l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t \u0111\u1ec3 chu\u1ea9n h\u00f3a c\u00e1c \u0111\u1ea7u ra gi\u1eefa c\u00e1c l\u1edbp c\u1ee7a m\u1ea1ng n\u01a1-ron. Nh\u1edd v\u1eady, l\u1edbp ti\u1ebfp theo nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t &#8220;c\u00e0i l\u1ea1i&#8221; ph\u00e2n ph\u1ed1i \u0111\u1ea7u ra t\u1eeb l\u1edbp tr\u01b0\u1edbc, gi\u00fap n\u00f3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<figure id=\"attachment_27174\" aria-describedby=\"caption-attachment-27174\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-la-gi.png\" alt=\"Batch Normalization l\u00e0 g\u00ec?\" width=\"709\" height=\"412\" class=\"size-full wp-image-27174\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-la-gi.png 709w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-la-gi-300x174.png 300w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><figcaption id=\"caption-attachment-27174\" class=\"wp-caption-text\">Batch Normalization l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>Thu\u1eadt ng\u1eef \u201cinternal covariate shift\u201d \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 t\u1ea3 t\u00e1c \u0111\u1ed9ng m\u00e0 vi\u1ec7c c\u1eadp nh\u1eadt c\u00e1c tham s\u1ed1 c\u1ee7a c\u00e1c l\u1edbp ph\u00eda tr\u00ean c\u00f3 l\u00ean ph\u00e2n ph\u1ed1i \u0111\u1ea7u v\u00e0o c\u1ee7a l\u1edbp hi\u1ec7n t\u1ea1i trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n h\u1ecdc s\u00e2u. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m cho qu\u00e1 tr\u00ecnh t\u1ed1i \u01b0u h\u00f3a tr\u1edf n\u00ean kh\u00f3 kh\u0103n v\u00e0 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh h\u1ed9i t\u1ee5 c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<p>V\u00ec chu\u1ea9n h\u00f3a \u0111\u1ea3m b\u1ea3o r\u1eb1ng kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t n\u00e0o qu\u00e1 cao ho\u1eb7c qu\u00e1 th\u1ea5p, v\u00e0 v\u00ec n\u00f3 cho ph\u00e9p m\u1ed7i l\u1edbp h\u1ecdc \u0111\u1ed9c l\u1eadp v\u1edbi c\u00e1c l\u1edbp kh\u00e1c, chi\u1ebfn l\u01b0\u1ee3c n\u00e0y gi\u00fap gia t\u0103ng t\u1ed1c \u0111\u1ed9 h\u1ecdc.<\/p>\n<p>B\u1eb1ng c\u00e1ch chu\u1ea9n h\u00f3a \u0111\u1ea7u v\u00e0o, t\u1ef7 l\u1ec7 &#8220;dropout&#8221; (l\u01b0\u1ee3ng th\u00f4ng tin b\u1ecb m\u1ea5t gi\u1eefa c\u00e1c giai \u0111o\u1ea1n x\u1eed l\u00fd) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u. \u0110i\u1ec1u n\u00e0y cu\u1ed1i c\u00f9ng gi\u00fap t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1ed5ng th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ly-do-nen-su-dung-Batch-Normalization\"><\/span>L\u00fd do n\u00ean s\u1eed d\u1ee5ng Batch Normalization<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c khi hu\u1ea5n luy\u1ec7n c\u00e1c m\u1ea1ng n\u01a1-ron s\u00e2u l\u00e0 s\u1ef1 thay \u0111\u1ed5i n\u1ed9i b\u1ed9 (internal covariate shift). \u0110i\u1ec1u n\u00e0y x\u1ea3y ra khi ph\u00e2n ph\u1ed1i c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t (\u0111\u1ea7u ra) c\u1ee7a m\u1ed9t l\u1edbp thay \u0111\u1ed5i trong su\u1ed1t qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n khi tr\u1ecdng s\u1ed1 c\u1ee7a c\u00e1c l\u1edbp tr\u01b0\u1edbc \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt. S\u1ef1 thay \u0111\u1ed5i n\u00e0y c\u00f3 th\u1ec3 l\u00e0m cho qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n tr\u1edf n\u00ean kh\u00f3 kh\u0103n v\u00e0 ch\u1eadm ch\u1ea1p.<\/p>\n<p>Chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t Batch normalization gi\u1ea3m thi\u1ec3u s\u1ef1 thay \u0111\u1ed5i n\u00e0y b\u1eb1ng c\u00e1ch chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t trong m\u1ed7i mini-batch, gi\u00fap c\u00e1c \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00e1c l\u1edbp ti\u1ebfp theo tr\u1edf n\u00ean \u1ed5n \u0111\u1ecbnh v\u00e0 nh\u1ea5t qu\u00e1n h\u01a1n.<\/p>\n<p>Chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t gi\u00fap m\u00f4 h\u00ecnh h\u1ed9i t\u1ee5 nhanh h\u01a1n v\u1edbi c\u00e1c t\u1ef7 l\u1ec7 h\u1ecdc cao h\u01a1n v\u00e0 l\u00e0m cho m\u00f4 h\u00ecnh \u00edt nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn kh\u1edfi t\u1ea1o.<\/p>\n<p>H\u01a1n n\u1eefa, batch normalization c\u00f2n t\u1ea1o ra m\u1ed9t hi\u1ec7u \u1ee9ng \u0111i\u1ec1u chu\u1ea9n gi\u00fap ng\u0103n ng\u1eeba qu\u00e1 kh\u1edbp (overfitting) b\u1eb1ng c\u00e1ch gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a m\u00f4 h\u00ecnh v\u00e0o c\u00e1c m\u1eabu k\u00edch ho\u1ea1t c\u1ee5 th\u1ec3.<\/p>\n<p>S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c l\u1ee3i \u00edch n\u00e0y khi\u1ebfn batch normalization tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong vi\u1ec7c hu\u1ea5n luy\u1ec7n c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc s\u00e2u m\u1ea1nh m\u1ebd h\u01a1n. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh m\u1ea1nh m\u1ebd, h\u00e3y tham kh\u1ea3o kh\u00f3a h\u1ecdc v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m gi\u00e1m s\u00e1t trong h\u1ecdc m\u00e1y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Batch-Normalization-hoat-dong-nhu-the-nao\"><\/span>Batch Normalization ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Batch normalization l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ea1ng h\u1ecdc s\u00e2u b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf trung b\u00ecnh c\u1ee7a batch v\u00e0 sau \u0111\u00f3 chu\u1ea9n h\u00f3a n\u00f3 b\u1eb1ng \u0111\u1ed9 l\u1ec7ch chu\u1ea9n c\u1ee7a batch.<\/p>\n<p>Gradient descent ng\u1eabu nhi\u00ean (stochastic gradient descent) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1eeda \u0111\u1ed5i qu\u00e1 tr\u00ecnh chu\u1ea9n h\u00f3a n\u00e0y n\u1ebfu h\u00e0m m\u1ea5t m\u00e1t qu\u00e1 l\u1edbn, b\u1eb1ng c\u00e1ch d\u1ecbch chuy\u1ec3n ho\u1eb7c thay \u0111\u1ed5i t\u1ef7 l\u1ec7 \u0111\u1ea7u ra qua m\u1ed9t tham s\u1ed1, \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c tr\u1ecdng s\u1ed1 trong l\u1edbp ti\u1ebfp theo.<\/p>\n<p>Khi \u00e1p d\u1ee5ng cho m\u1ed9t l\u1edbp, batch normalization s\u1ebd nh\u00e2n \u0111\u1ea7u ra c\u1ee7a l\u1edbp \u0111\u00f3 v\u1edbi m\u1ed9t tham s\u1ed1 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n (gamma) v\u00e0 c\u1ed9ng th\u00eam m\u1ed9t tham s\u1ed1 trung b\u00ecnh (beta) l\u00e0m tham s\u1ed1 c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c.<\/p>\n<p>D\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u201c\u0111i\u1ec1u chu\u1ea9n l\u1ea1i\u201d b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh ch\u1ec9 hai tr\u1ecdng s\u1ed1 n\u00e0y cho m\u1ed7i \u0111\u1ea7u ra, nh\u1edd v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa batch normalization v\u00e0 gradient descent. K\u1ebft qu\u1ea3 l\u00e0 gi\u1ea3m m\u1ea5t m\u00e1t d\u1eef li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u1ea1ng.<\/p>\n<figure id=\"attachment_27175\" aria-describedby=\"caption-attachment-27175\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-hoat-dong-nhu-the-nao.png\" alt=\"Batch Normalization ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?\" width=\"800\" height=\"450\" class=\"size-full wp-image-27175\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-hoat-dong-nhu-the-nao.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-hoat-dong-nhu-the-nao-300x169.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-hoat-dong-nhu-the-nao-768x432.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Batch-Normalization-hoat-dong-nhu-the-nao-750x422.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-27175\" class=\"wp-caption-text\">Batch Normalization ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/figcaption><\/figure>\n<p>M\u1ee5c ti\u00eau c\u1ee7a chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t Batch normalization l\u00e0 l\u00e0m \u1ed5n \u0111\u1ecbnh qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t c\u1ee7a m\u00f4 h\u00ecnh. N\u00f3 c\u0169ng gi\u00fap gi\u1ea3m b\u1edbt y\u00eau c\u1ea7u v\u1ec1 vi\u1ec7c kh\u1edfi t\u1ea1o tr\u1ecdng s\u1ed1 m\u00f4 h\u00ecnh v\u00e0 cho ph\u00e9p s\u1eed d\u1ee5ng t\u1ef7 l\u1ec7 h\u1ecdc cao h\u01a1n, gi\u00fap t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n.<\/p>\n<p>C\u00e1ch th\u1ef1c h\u00e0nh ph\u1ed5 bi\u1ebfn l\u00e0 \u00e1p d\u1ee5ng batch normalization tr\u01b0\u1edbc h\u00e0m k\u00edch ho\u1ea1t c\u1ee7a l\u1edbp, v\u00e0 n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u chu\u1ea9n kh\u00e1c nh\u01b0 dropout. \u0110\u00e2y l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong h\u1ecdc s\u00e2u hi\u1ec7n \u0111\u1ea1i v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u t\u00e1c v\u1ee5, bao g\u1ed3m ph\u00e2n lo\u1ea1i h\u00ecnh \u1ea3nh, x\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean v\u00e0 d\u1ecbch m\u00e1y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-ich-cua-Batch-Normalization-la-gi\"><\/span>L\u1ee3i \u00edch c\u1ee7a Batch Normalization l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\u1ed4n \u0111\u1ecbnh qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n: Batch normalization gi\u00fap gi\u1ea3m s\u1ef1 thay \u0111\u1ed5i n\u1ed9i b\u1ed9 (internal covariate shift) x\u1ea3y ra trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n v\u00e0 l\u00e0m cho vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a m\u00f4 h\u00ecnh d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n<li>C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t: B\u1eb1ng c\u00e1ch chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t c\u1ee7a m\u1ed9t l\u1edbp, batch normalization gi\u00fap gi\u1ea3m qu\u00e1 kh\u1edbp (overfitting) v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t c\u1ee7a m\u00f4 h\u00ecnh.<\/li>\n<li>Gi\u1ea3m nhu c\u1ea7u kh\u1edfi t\u1ea1o c\u1ea9n th\u1eadn: Batch normalization gi\u00fap gi\u1ea3m s\u1ef1 nh\u1ea1y c\u1ea3m c\u1ee7a m\u00f4 h\u00ecnh \u0111\u1ed1i v\u1edbi tr\u1ecdng s\u1ed1 ban \u0111\u1ea7u, l\u00e0m cho qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n<li>Cho ph\u00e9p s\u1eed d\u1ee5ng t\u1ef7 l\u1ec7 h\u1ecdc cao h\u01a1n: Batch normalization cho ph\u00e9p s\u1eed d\u1ee5ng t\u1ef7 l\u1ec7 h\u1ecdc cao h\u01a1n, \u0111i\u1ec1u n\u00e0y gi\u00fap t\u0103ng t\u1ed1c qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Thach-thuc-cua-Batch-Normalization-la-gi\"><\/span>Th\u00e1ch th\u1ee9c c\u1ee7a Batch Normalization l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1eb7c d\u00f9 chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t Batch normalization l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt h\u1eefu \u00edch, nh\u01b0ng v\u1eabn c\u00f3 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf v\u00e0 th\u00e1ch th\u1ee9c m\u00e0 ch\u00fang ta c\u1ea7n l\u01b0u \u00fd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Batch-Normalization-trong-cac-kien-truc-khong-phai-la-mang-tich-chap\"><\/span>Batch Normalization trong c\u00e1c ki\u1ebfn tr\u00fac kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ea1ng t\u00edch ch\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Batch Normalization ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u1ea1ng n\u01a1-ron t\u00edch ch\u1eadp (CNNs) v\u00e0 \u0111\u00e3 th\u00e0nh c\u00f4ng \u0111\u1eb7c bi\u1ec7t trong l\u0129nh v\u1ef1c n\u00e0y. Tuy nhi\u00ean, hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 trong c\u00e1c ki\u1ebfn tr\u00fac kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ea1ng t\u00edch ch\u1eadp, nh\u01b0 m\u1ea1ng n\u01a1-ron h\u1ed3i quy (RNNs) ho\u1eb7c transformers, c\u00f3 th\u1ec3 b\u1ecb h\u1ea1n ch\u1ebf.<\/p>\n<p>T\u00ednh ch\u1ea5t tu\u1ea7n t\u1ef1 c\u1ee7a c\u00e1c m\u1ea1ng RNN v\u00e0 c\u01a1 ch\u1ebf ch\u00fa \u00fd trong transformers c\u00f3 th\u1ec3 l\u00e0m cho vi\u1ec7c \u00e1p d\u1ee5ng batch normalization tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<br \/>\nC\u00e1c k\u1ef9 thu\u1eadt chu\u1ea9n h\u00f3a thay th\u1ebf, nh\u01b0 layer normalization ho\u1eb7c instance normalization, c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac n\u00e0y.<\/p>\n<figure id=\"attachment_27176\" aria-describedby=\"caption-attachment-27176\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Thach-thuc-cua-Batch-Normalization-la-gi.png\" alt=\"Th\u00e1ch th\u1ee9c c\u1ee7a Batch Normalization l\u00e0 g\u00ec\" width=\"800\" height=\"521\" class=\"size-full wp-image-27176\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Thach-thuc-cua-Batch-Normalization-la-gi.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Thach-thuc-cua-Batch-Normalization-la-gi-300x195.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Thach-thuc-cua-Batch-Normalization-la-gi-768x500.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Thach-thuc-cua-Batch-Normalization-la-gi-750x488.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-27176\" class=\"wp-caption-text\">Th\u00e1ch th\u1ee9c c\u1ee7a Batch Normalization l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Kich-thuoc-batch-nho-va-hieu-suat-trong-thoi-gian-suy-luan\"><\/span>K\u00edch th\u01b0\u1edbc batch nh\u1ecf v\u00e0 hi\u1ec7u su\u1ea5t trong th\u1eddi gian suy lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Batch normalization d\u1ef1a v\u00e0o c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch \u0111\u01b0\u1ee3c t\u00ednh trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n \u0111\u1ec3 chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t. Khi k\u00edch th\u01b0\u1edbc batch nh\u1ecf, c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch c\u00f3 th\u1ec3 tr\u1edf n\u00ean \u00edt \u0111\u00e1ng tin c\u1eady v\u00e0 g\u00e2y ra ti\u1ebfng \u1ed3n ho\u1eb7c s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh chu\u1ea9n h\u00f3a.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t kh\u00f4ng t\u1ed1i \u01b0u ho\u1eb7c th\u1eadm ch\u00ed g\u1eb7p kh\u00f3 kh\u0103n trong hu\u1ea5n luy\u1ec7n, \u0111\u1eb7c bi\u1ec7t khi k\u00edch th\u01b0\u1edbc batch gi\u1ea3m xu\u1ed1ng \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb.<\/p>\n<p>Trong qu\u00e1 tr\u00ecnh suy lu\u1eadn, chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t Batch normalization s\u1eed d\u1ee5ng c\u00e1c th\u1ed1ng k\u00ea ch\u1ea1y \u0111\u01b0\u1ee3c t\u00ednh trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n, c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea1i di\u1ec7n ch\u00ednh x\u00e1c cho th\u1ed1ng k\u00ea c\u1ee7a c\u00e1c m\u1eabu \u0111\u01a1n l\u1ebb ho\u1eb7c batch nh\u1ecf. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p gi\u1eefa ph\u00e2n ph\u1ed1i trong hu\u1ea5n luy\u1ec7n v\u00e0 ph\u00e2n ph\u1ed1i trong suy lu\u1eadn, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t m\u00f4 h\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-danh-doi-cua-Batch-Normalization\"><\/span>S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i c\u1ee7a Batch Normalization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Batch normalization g\u00e2y th\u00eam t\u1ea3i t\u00ednh to\u00e1n trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n do ph\u1ea3i t\u00ednh to\u00e1n c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch v\u00e0 th\u1ef1c hi\u1ec7n ph\u00e9p chu\u1ea9n h\u00f3a. Vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng y\u00eau c\u1ea7u b\u1ed9 nh\u1edb v\u00e0 th\u1eddi gian hu\u1ea5n luy\u1ec7n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c m\u00f4 h\u00ecnh ho\u1eb7c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn.<\/p>\n<p>Batch normalization c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i d\u1eef li\u1ec7u ho\u1eb7c t\u00e1c v\u1ee5, n\u01a1i qu\u00e1 tr\u00ecnh chu\u1ea9n h\u00f3a c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng th\u00f4ng tin quan tr\u1ecdng ho\u1eb7c lo\u1ea1i b\u1ecf c\u00e1c bi\u1ebfn th\u1ec3 c\u00f3 \u00fd ngh\u0129a.<\/p>\n<p>V\u00ed d\u1ee5, batch normalization c\u00f3 th\u1ec3 c\u00f3 t\u00e1c d\u1ee5ng kh\u00f4ng mong mu\u1ed1n \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e1c v\u1ee5 y\u00eau c\u1ea7u chi ti\u1ebft tinh vi ho\u1eb7c th\u00f4ng tin kh\u00f4ng gian ch\u00ednh x\u00e1c, nh\u01b0 ph\u00e2n \u0111o\u1ea1n ho\u1eb7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed.<\/p>\n<p>Hi\u1ec7u \u1ee9ng \u0111i\u1ec1u chu\u1ea9n c\u1ee7a Batch Normalization \u0111\u00f4i khi c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u chu\u1ea9n kh\u00e1c, nh\u01b0 dropout, theo nh\u1eefng c\u00e1ch kh\u00f4ng l\u01b0\u1eddng tr\u01b0\u1edbc \u0111\u01b0\u1ee3c, y\u00eau c\u1ea7u ph\u1ea3i tinh ch\u1ec9nh v\u00e0 xem x\u00e9t k\u1ef9 l\u01b0\u1ee1ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-bien-the-va-tien-ich-mo-rong-cua-Batch-Normalization\"><\/span>C\u00e1c bi\u1ebfn th\u1ec3 v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a Batch Normalization<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u00e2y gi\u1edd, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1c bi\u1ebfn th\u1ec3 v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a batch normalization m\u00e0 ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u c\u00e1c th\u00e1ch th\u1ee9c khi chu\u1ea9n h\u00f3a h\u00e0ng lo\u1ea1t Batch normalization c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i.<\/p>\n<ul>\n<li>Layer normalization: Layer normalization ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t trong t\u1ea5t c\u1ea3 c\u00e1c k\u00eanh c\u1ee7a m\u1ed9t l\u1edbp, thay v\u00ec qua chi\u1ec1u batch. N\u00f3 chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb k\u00edch ho\u1ea1t d\u1ef1a tr\u00ean trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n \u0111\u01b0\u1ee3c t\u00ednh cho m\u1ed7i m\u1eabu ri\u00eang bi\u1ec7t trong batch. Layer normalization \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c m\u1ea1ng n\u01a1-ron h\u1ed3i quy (RNNs) v\u00e0 c\u00e1c t\u00ecnh hu\u1ed1ng khi k\u00edch th\u01b0\u1edbc batch nh\u1ecf ho\u1eb7c thay \u0111\u1ed5i.<\/li>\n<li>Group normalization: Group normalization chia c\u00e1c k\u00eanh th\u00e0nh c\u00e1c nh\u00f3m v\u00e0 t\u00ednh to\u00e1n c\u00e1c th\u1ed1ng k\u00ea chu\u1ea9n h\u00f3a trong m\u1ed7i nh\u00f3m. N\u00f3 c\u00e2n b\u1eb1ng gi\u1eefa layer normalization v\u00e0 batch normalization b\u1eb1ng c\u00e1ch chu\u1ea9n h\u00f3a m\u1ed9t t\u1eadp con c\u1ee7a c\u00e1c k\u00eanh c\u00f9ng nhau. Group normalization hi\u1ec7u qu\u1ea3 trong c\u00e1c t\u00ecnh hu\u1ed1ng khi k\u00edch th\u01b0\u1edbc batch b\u1ecb h\u1ea1n ch\u1ebf, ch\u1eb3ng h\u1ea1n nh\u01b0 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb ho\u1eb7c khi x\u1eed l\u00fd c\u00e1c h\u00ecnh \u1ea3nh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao.<\/li>\n<li>Instance normalization: Instance normalization \u00e1p d\u1ee5ng chu\u1ea9n h\u00f3a cho m\u1ed7i k\u00eanh c\u1ee7a m\u1ed7i m\u1eabu trong batch. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c t\u00e1c v\u1ee5 chuy\u1ec3n \u0111\u1ed5i phong c\u00e1ch (style transfer) v\u00e0 t\u1ea1o \u1ea3nh, n\u01a1i m\u1ee5c ti\u00eau l\u00e0 chu\u1ea9n h\u00f3a n\u1ed9i dung trong khi gi\u1eef l\u1ea1i th\u00f4ng tin phong c\u00e1ch.<br \/>\nInstance normalization \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c t\u1ea1o ra trong c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y.<\/li>\n<li>Batch renormalization: Batch renormalization m\u1edf r\u1ed9ng batch normalization b\u1eb1ng c\u00e1ch gi\u1edbi thi\u1ec7u c\u00e1c \u0111i\u1ec1u ch\u1ec9nh b\u1ed5 sung v\u00e0o qu\u00e1 tr\u00ecnh chu\u1ea9n h\u00f3a. M\u1ee5c ti\u00eau c\u1ee7a n\u00f3 l\u00e0 gi\u1ea3i quy\u1ebft s\u1ef1 sai l\u1ec7ch gi\u1eefa c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch v\u00e0 th\u1ed1ng k\u00ea c\u1ee7a qu\u1ea7n th\u1ec3, \u0111\u1eb7c bi\u1ec7t khi k\u00edch th\u01b0\u1edbc batch nh\u1ecf. Batch renormalization gi\u00fap \u1ed5n \u0111\u1ecbnh qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t c\u1ee7a m\u00f4 h\u00ecnh, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c t\u00ecnh hu\u1ed1ng c\u00f3 k\u00edch th\u01b0\u1edbc batch h\u1ea1n ch\u1ebf.<\/li>\n<li>Weight normalization: Weight normalization l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt thay \u0111\u1ed5i tham s\u1ed1 c\u1ee7a m\u1ea1ng n\u01a1-ron \u0111\u1ec3 t\u00e1ch bi\u1ec7t \u0111\u1ed9 l\u1edbn v\u00e0 ph\u01b0\u01a1ng h\u01b0\u1edbng c\u1ee7a tr\u1ecdng s\u1ed1.<br \/>\nPh\u01b0\u01a1ng ph\u00e1p n\u00e0y chu\u1ea9n h\u00f3a tr\u1ecdng s\u1ed1 b\u1eb1ng c\u00e1ch chia ch\u00fang cho chu\u1ea9n Euclid c\u1ee7a ch\u00fang v\u00e0 gi\u1edbi thi\u1ec7u m\u1ed9t tham s\u1ed1 t\u1ec9 l\u1ec7 c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c. Weight normalization c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi Batch Normalization ho\u1eb7c nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p chu\u1ea9n h\u00f3a thay th\u1ebf. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u1ea3i thi\u1ec7n s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a b\u00e0i to\u00e1n t\u1ed1i \u01b0u h\u00f3a v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 h\u1ed9i t\u1ee5 trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p.<\/li>\n<\/ul>\n<p>C\u00e1c bi\u1ebfn th\u1ec3 v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng c\u1ee7a batch normalization n\u00e0y cung c\u1ea5p th\u00eam c\u00f4ng c\u1ee5 v\u00e0 k\u1ef9 thu\u1eadt \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c c\u1ee5 th\u1ec3 v\u00e0 c\u1ea3i thi\u1ec7n qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n c\u0169ng nh\u01b0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc s\u00e2u.<\/p>\n<p>M\u1ed7i bi\u1ebfn th\u1ec3 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 c\u00e2n nh\u1eafc ri\u00eang, v\u00e0 vi\u1ec7c ch\u1ecdn s\u1eed d\u1ee5ng c\u00e1i n\u00e0o ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u00e1c v\u1ee5, ki\u1ebfn tr\u00fac m\u00f4 h\u00ecnh v\u00e0 t\u00e0i nguy\u00ean t\u00ednh to\u00e1n c\u00f3 s\u1eb5n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-giam-thieu-cac-han-che-cua-Batch-Normalization\"><\/span>C\u00e1ch gi\u1ea3m thi\u1ec3u c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a Batch Normalization<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf v\u00e0 th\u00e1ch th\u1ee9c, batch normalization v\u1eabn l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn v\u00e0 hi\u1ec7u qu\u1ea3 trong h\u1ecdc s\u00e2u. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 chuy\u00ean gia v\u1eabn ti\u1ebfp t\u1ee5c t\u00ecm ki\u1ebfm c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y v\u00e0 c\u1ea3i thi\u1ec7n c\u00f4ng th\u1ee9c ban \u0111\u1ea7u.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a batch normalization:<\/p>\n<ul>\n<li>Adaptive batch normalization: K\u1ef9 thu\u1eadt n\u00e0y \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch d\u1ef1a tr\u00ean \u0111\u1eb7c \u0111i\u1ec3m c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed7i m\u1eabu, gi\u00fap gi\u1ea3m b\u1edbt c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn k\u00edch th\u01b0\u1edbc batch nh\u1ecf.<\/li>\n<li>Virtual batch normalization: Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u00ednh to\u00e1n c\u00e1c th\u1ed1ng k\u00ea chu\u1ea9n h\u00f3a b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t batch \u1ea3o bao g\u1ed3m c\u00e1c m\u1eabu t\u1eeb nhi\u1ec1u batch, gi\u00fap c\u1ea3i thi\u1ec7n s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a qu\u00e1 tr\u00ecnh chu\u1ea9n h\u00f3a.<\/li>\n<li>K\u1ef9 thu\u1eadt chu\u1ea9n h\u00f3a k\u1ebft h\u1ee3p: K\u1ebft h\u1ee3p batch normalization v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p chu\u1ea9n h\u00f3a kh\u00e1c, nh\u01b0 layer normalization ho\u1eb7c instance normalization, c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c h\u1ea1n ch\u1ebf \u0111\u1eb7c th\u00f9 c\u1ee7a c\u00e1c ki\u1ebfn tr\u00fac ho\u1eb7c t\u00e1c v\u1ee5 c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization\"><\/span>Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi tri\u1ec3n khai Batch Normalization<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u00e2y gi\u1edd, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 vi\u1ec7c tri\u1ec3n khai batch normalization trong c\u00e1c ki\u1ebfn tr\u00fac h\u1ecdc s\u00e2u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi-tri-trong-cac-kien-truc-mang-no-ron\"><\/span>V\u1ecb tr\u00ed trong c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng n\u01a1-ron<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c l\u1edbp batch normalization hi\u1ec7u qu\u1ea3 nh\u1ea5t khi \u0111\u01b0\u1ee3c \u0111\u1eb7t m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c trong m\u1ea1ng. Th\u00f4ng th\u01b0\u1eddng, ch\u00fang \u0111\u01b0\u1ee3c \u0111\u1eb7t sau ph\u00e9p bi\u1ebfn \u0111\u1ed5i tuy\u1ebfn t\u00ednh (v\u00ed d\u1ee5, c\u00e1c l\u1edbp t\u00edch ch\u1eadp ho\u1eb7c k\u1ebft n\u1ed1i \u0111\u1ea7y \u0111\u1ee7) v\u00e0 tr\u01b0\u1edbc h\u00e0m k\u00edch ho\u1ea1t phi tuy\u1ebfn.<\/p>\n<p>Trong c\u00e1c m\u1ea1ng t\u00edch ch\u1eadp, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u0111\u1eb7t batch normalization sau m\u1ed7i l\u1edbp t\u00edch ch\u1eadp v\u00e0 tr\u01b0\u1edbc h\u00e0m k\u00edch ho\u1ea1t. T\u01b0\u01a1ng t\u1ef1, trong c\u00e1c m\u1ea1ng k\u1ebft n\u1ed1i \u0111\u1ea7y \u0111\u1ee7, vi\u1ec7c th\u00eam batch normalization sau ph\u00e9p bi\u1ebfn \u0111\u1ed5i tuy\u1ebfn t\u00ednh v\u00e0 tr\u01b0\u1edbc h\u00e0m k\u00edch ho\u1ea1t c\u1ee7a m\u1ed7i l\u1edbp \u1ea9n l\u00e0 \u0111i\u1ec1u th\u01b0\u1eddng th\u1ea5y.<\/p>\n<p>V\u1ecb tr\u00ed c\u1ee7a c\u00e1c l\u1edbp batch normalization c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9ng h\u1ecdc hu\u1ea5n luy\u1ec7n c\u1ee7a m\u00f4 h\u00ecnh. C\u00f3 th\u1ec3 c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m \u0111\u1ec3 t\u00ecm ra c\u1ea5u h\u00ecnh t\u1ed1i \u01b0u cho m\u1ed7i ki\u1ebfn tr\u00fac m\u1ea1ng c\u1ee5 th\u1ec3.<\/p>\n<figure id=\"attachment_27177\" aria-describedby=\"caption-attachment-27177\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization.png\" alt=\"Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi tri\u1ec3n khai Batch Normalization\" width=\"800\" height=\"500\" class=\"size-full wp-image-27177\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization-768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/04\/Nhung-dieu-can-luu-y-khi-trien-khai-Batch-Normalization-750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-27177\" class=\"wp-caption-text\">Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi tri\u1ec3n khai Batch Normalization<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Anh-huong-cua-kich-thuoc-batch\"><\/span>\u1ea2nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc batch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u00edch th\u01b0\u1edbc batch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 c\u1ee7a batch normalization. K\u00edch th\u01b0\u1edbc batch l\u1edbn h\u01a1n cung c\u1ea5p c\u00e1c \u01b0\u1edbc l\u01b0\u1ee3ng ch\u00ednh x\u00e1c h\u01a1n v\u1ec1 th\u1ed1ng k\u00ea c\u1ee7a batch (trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n), d\u1eabn \u0111\u1ebfn chu\u1ea9n h\u00f3a t\u1ed1t h\u01a1n v\u00e0 qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n \u1ed5n \u0111\u1ecbnh h\u01a1n.<\/p>\n<p>Tuy nhi\u00ean, vi\u1ec7c t\u0103ng k\u00edch th\u01b0\u1edbc batch c\u0169ng l\u00e0m t\u0103ng m\u1ee9c ti\u00eau th\u1ee5 b\u1ed9 nh\u1edb v\u00e0 y\u00eau c\u1ea7u t\u00ednh to\u00e1n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 h\u1ea1n ch\u1ebf t\u00f9y thu\u1ed9c v\u00e0o t\u00e0i nguy\u00ean ph\u1ea7n c\u1ee9ng c\u00f3 s\u1eb5n.<\/p>\n<p>Quan tr\u1ecdng l\u00e0 ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa k\u00edch th\u01b0\u1edbc batch v\u00e0 kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c th\u1ed1ng k\u00ea c\u1ee7a batch v\u1eabn \u0111\u00e1ng tin c\u1eady cho vi\u1ec7c chu\u1ea9n h\u00f3a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hieu-ung-va-tac-dong-cua-dieu-chuan\"><\/span>Hi\u1ec7u \u1ee9ng v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec1u chu\u1ea9n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Batch normalization t\u1ef1 n\u00f3 t\u1ea1o ra m\u1ed9t hi\u1ec7u \u1ee9ng \u0111i\u1ec1u chu\u1ea9n nh\u1edd v\u00e0o ti\u1ebfng \u1ed3n do th\u1ed1ng k\u00ea mini-batch g\u00e2y ra. S\u1ef1 ng\u1eabu nhi\u00ean do th\u1ed1ng k\u00ea c\u1ee7a batch mang l\u1ea1i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t h\u00ecnh th\u1ee9c \u0111i\u1ec1u chu\u1ea9n, gi\u00fap gi\u1ea3m qu\u00e1 kh\u1edbp v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u1ed5ng qu\u00e1t.<\/p>\n<p>Tuy nhi\u00ean, hi\u1ec7u \u1ee9ng \u0111i\u1ec1u chu\u1ea9n n\u00e0y c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u chu\u1ea9n kh\u00e1c, nh\u01b0 dropout ho\u1eb7c \u0111i\u1ec1u chu\u1ea9n L2.<\/p>\n<p>Khi s\u1eed d\u1ee5ng batch normalization, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i xem x\u00e9t s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u chu\u1ea9n kh\u00e1c nhau v\u00e0 \u0111i\u1ec1u ch\u1ec9nh ch\u00fang ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u00e1nh qu\u00e1 \u0111i\u1ec1u chu\u1ea9n ho\u1eb7c l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<p>Th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m v\u00e0 theo d\u00f5i hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh tr\u00ean d\u1eef li\u1ec7u x\u00e1c th\u1ef1c c\u00f3 th\u1ec3 gi\u00fap t\u00ecm ra s\u1ef1 c\u00e2n b\u1eb1ng h\u1ee3p l\u00fd gi\u1eefa c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u chu\u1ea9n khi s\u1eed d\u1ee5ng batch normalization.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Batch Normalization l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt quan tr\u1ecdng trong h\u1ecdc s\u00e2u gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 hu\u1ea5n luy\u1ec7n v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u00f4 h\u00ecnh m\u1ea1ng n\u01a1-ron. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 Batch Normalization l\u00e0 g\u00ec, bao g\u1ed3m l\u00fd do t\u1ea1i sao n\u00f3 quan tr\u1ecdng, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/p>\n","protected":false},"author":11,"featured_media":27178,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-27168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=27168"}],"version-history":[{"count":8,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27168\/revisions"}],"predecessor-version":[{"id":32028,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/27168\/revisions\/32028"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/27178"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=27168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=27168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=27168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}