{"id":15549,"date":"2023-04-06T13:31:13","date_gmt":"2023-04-06T06:31:13","guid":{"rendered":"https:\/\/www.thegioimaychu.vn\/blog\/?p=15549"},"modified":"2023-04-06T13:40:34","modified_gmt":"2023-04-06T06:40:34","slug":"cac-cau-hoi-thuong-gap-trong-linh-vuc-deep-learning","status":"publish","type":"post","link":"https:\/\/thegioimaychu.vn\/blog\/ai-hpc\/cac-cau-hoi-thuong-gap-trong-linh-vuc-deep-learning-p15549\/","title":{"rendered":"C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p trong l\u0129nh v\u1ef1c Deep Learning"},"content":{"rendered":"<style>.iblink{color:#975!important;}.iblink:hover{color:orange!important;}<\/style><p><a class=\"iblink\" href=\"\/blog\/tag\/deep-learning\/\">Deep Learning<\/a> l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 h\u1ecdc m\u00e1y ti\u00ean ti\u1ebfn, c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng v\u00e0 l\u1ee3i \u00edch trong nhi\u1ec1u l\u0129nh v\u1ef1c, v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p, gi\u00fap \u0111\u00f3ng g\u00f3p t\u00edch c\u1ef1c cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng hay g\u1eb7p nh\u1ea5t trong l\u0129nh v\u1ef1c <a class=\"iblink\" href=\"\/blog\/tag\/deep-learning\/\">Deep Learning<\/a>.<\/p>\n<p><em>M\u1ee4C L\u1ee4C<\/em><br \/>\n<em><a href=\"#dl01\">Deep Learning l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl02\">Deep Learning ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/em><br \/>\n<em><a href=\"#dl03\">C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a Deep Learning l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl04\">C\u00e1c \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi Deep Learning l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl05\">T\u1ea1i sao c\u00e1c GPU (b\u1ed9 t\u0103ng t\u1ed1c \u0111\u1ed3 h\u1ecda) l\u1ea1i c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh Deep Learning?<\/a><\/em><br \/>\n<em><a href=\"#dl06\">Convolutional Neural Network (CNN) l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl07\">Recurrent Neural Network (RNN) l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl08\">Reinforcement Learning l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl09\">Transfer Learning l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl10\">Overfitting l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl11\">Underfitting l\u00e0 g\u00ec?<\/a><\/em><br \/>\n<em><a href=\"#dl12\">Hyperparameter l\u00e0 g\u00ec?<\/a><\/em><\/p>\n<h3><a id=\"dl01\"><\/a>Deep Learning l\u00e0 g\u00ec?<\/h3>\n<p>Deep Learning l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c con c\u1ee7a Machine Learning s\u1eed d\u1ee5ng m\u1ea1ng neural nh\u00e2n t\u1ea1o v\u1edbi nhi\u1ec1u l\u1edbp \u0111\u1ec3 m\u00f4 h\u00ecnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p. N\u00f3 \u0111\u01b0\u1ee3c l\u1ea5y c\u1ea3m h\u1ee9ng t\u1eeb c\u1ea5u tr\u00fac v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00e3o ng\u01b0\u1eddi v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra c\u00e1c thu\u1eadt to\u00e1n c\u00f3 th\u1ec3 h\u1ecdc v\u00e0 d\u1ef1 \u0111o\u00e1n t\u1eeb c\u00e1c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn.<\/p>\r\n\t\t\t\t<div class=\"tgmcad hor\" style=\"text-align:center;margin:30px 0; padding: 10px 0; border-radius:5px; border-top:solid 1px #ccc; border-bottom:solid 1px #ccc; \">\r\n\t\t\t\t<a href=\"https:\/\/thegioimaychu.vn\/giai-phap\/deep-learning\/\"><img decoding=\"async\" alt=\"Gi\u1ea3i ph\u00e1p h\u1ea1 t\u1ea7ng Deep Learning, Tr\u00ed tu\u1ec7 Nh\u00e2n t\u1ea1o - AI\" src=\"https:\/\/thegioimaychu.vn\/blog\/wp-content\/uploads\/2019\/11\/tgmc-deep-learning.jpg\" \/><\/a>\r\n\t\t\t\t<\/div>\n<h3><a id=\"dl02\"><\/a>Deep Learning ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n<p>Deep Learning ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ea1ng neural nh\u00e2n t\u1ea1o v\u1edbi nhi\u1ec1u l\u1edbp \u0111\u1ec3 h\u1ecdc c\u00e1c m\u1eabu v\u00e0 m\u1ed1i quan h\u1ec7 trong d\u1eef li\u1ec7u. M\u1ea1ng \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n tr\u00ean m\u1ed9t t\u1eadp d\u1eef li\u1ec7u l\u1edbn v\u00e0 tr\u1ecdng s\u1ed1 v\u00e0 \u0111\u1ed9 l\u1ec7ch c\u1ee7a m\u1ed7i l\u1edbp \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 gi\u1ea3m thi\u1ec3u sai s\u1ed1 gi\u1eefa d\u1ef1 \u0111o\u00e1n v\u00e0 k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf. Khi m\u1ea1ng \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n tr\u00ean d\u1eef li\u1ec7u m\u1edbi.<\/p>\n<h3><a id=\"dl03\"><\/a>C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a Deep Learning l\u00e0 g\u00ec?<\/h3>\n<p>Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t lo\u1ea1t c\u00e1c \u1ee9ng d\u1ee5ng, bao g\u1ed3m <a class=\"iblink\" href=\"\/blog\/tag\/computer-vision\/\">th\u1ecb gi\u00e1c m\u00e1y t\u00ednh<\/a>, x\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean, nh\u1eadn d\u1ea1ng gi\u1ecdng n\u00f3i, xe t\u1ef1 h\u00e0nh, ph\u00e1t hi\u1ec7n gian l\u1eadn, h\u1ec7 th\u1ed1ng \u0111\u1ec1 xu\u1ea5t v\u00e0 nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nh\u1edd v\u00e0o kh\u1ea3 n\u0103ng c\u1ee7a n\u00f3 trong vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3\u00a0c\u1ee7a Deep Learning:<\/p>\n<p><strong><a class=\"iblink\" href=\"\/blog\/tag\/computer-vision\/\">Th\u1ecb gi\u00e1c m\u00e1y t\u00ednh<\/a>:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t, \u0111\u1ed1i t\u01b0\u1ee3ng, ph\u00e2n lo\u1ea1i \u1ea3nh v\u00e0 video, nh\u1eadn d\u1ea1ng bi\u1ec3n s\u1ed1 xe, t\u1ea1o \u1ea3nh ngh\u1ec7 thu\u1eadt, v.v.<\/p>\n<p><strong>X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd v\u0103n b\u1ea3n t\u1ef1 nhi\u00ean, d\u1ecbch m\u00e1y, ph\u00e2n lo\u1ea1i t\u00e0i li\u1ec7u, tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi t\u1ef1 \u0111\u1ed9ng, v\u00e0 t\u1ea1o v\u0103n b\u1ea3n t\u1ef1 \u0111\u1ed9ng.<\/p>\n<p><strong>D\u1ecbch thu\u1eadt:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 d\u1ecbch thu\u1eadt t\u1ef1 \u0111\u1ed9ng, gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 giao ti\u1ebfp v\u00e0 hi\u1ec3u c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c nhau d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<p><strong>T\u1ef1 \u0111\u1ed9ng l\u00e1i xe:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng l\u00e1i xe, gi\u00fap t\u0103ng c\u01b0\u1eddng an to\u00e0n giao th\u00f4ng v\u00e0 gi\u1ea3m thi\u1ec3u tai n\u1ea1n giao th\u00f4ng.<\/p>\n<p><strong>Y t\u1ebf:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n ung th\u01b0, d\u1ef1 \u0111o\u00e1n b\u1ec7nh, gi\u00fap x\u1eed l\u00fd h\u00ecnh \u1ea3nh y t\u1ebf, ph\u00e2n t\u00edch d\u1eef li\u1ec7u gen v\u00e0 ph\u00e2n lo\u1ea1i b\u1ec7nh.<\/p>\n<p><strong>Khoa h\u1ecdc:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u00f3ng h\u1ea5p d\u1eabn, ph\u00e2n t\u00edch h\u00ecnh \u1ea3nh vi\u1ec5n th\u00e1m, d\u1ef1 \u0111o\u00e1n kh\u00ed h\u1eadu, v.v.<\/p>\n<p><strong>Marketing:<\/strong> Deep Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng, d\u1ef1 \u0111o\u00e1n xu h\u01b0\u1edbng v\u00e0 th\u00f4ng tin th\u1ecb tr\u01b0\u1eddng, t\u1ed1i \u01b0u h\u00f3a chi\u1ebfn l\u01b0\u1ee3c marketing, v.v.<\/p>\n<p>M\u1ed9t c\u00e1ch t\u1ed5ng qu\u00e1t, Deep Learning c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, t\u1eeb kinh doanh, y t\u1ebf, khoa h\u1ecdc, t\u00e0i ch\u00ednh cho \u0111\u1ebfn gi\u1ea3i tr\u00ed.<\/p>\n<h3><a id=\"dl04\"><\/a>C\u00e1c \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi Deep Learning l\u00e0 g\u00ec?<\/h3>\n<p>\u0110\u1ec3 b\u1eaft \u0111\u1ea7u v\u1edbi Deep Learning kh\u00f4ng kh\u00f3 nh\u01b0 m\u1ecdi ng\u01b0\u1eddi ngh\u0129. C\u00f3 m\u1ed9t v\u00e0i \u0111i\u1ec1u c\u01a1 b\u1ea3n c\u01a1 b\u1ea3n m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi \u0111i s\u00e2u v\u00e0o Deep Learning. Deep Learning \u0111\u00f2i h\u1ecfi ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 c\u00e1c ch\u1ee7 \u0111\u1ec1 sau:<\/p>\n<p><strong>To\u00e1n h\u1ecdc:<\/strong> B\u1ea1n s\u1ebd c\u1ea3m th\u1ea5y tho\u1ea3i m\u00e1i v\u1edbi x\u00e1c su\u1ea5t, \u0111\u1ea1o h\u00e0m, \u0111\u1ea1i s\u1ed1 tuy\u1ebfn t\u00ednh v\u00e0 m\u1ed9t s\u1ed1 ch\u1ee7 \u0111\u1ec1 c\u01a1 b\u1ea3n kh\u00e1c. Khan Academy cung c\u1ea5p m\u1ed9t kh\u00f3a h\u1ecdc ph\u00f9 h\u1ee3p bao g\u1ed3m h\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c ch\u1ee7 \u0111\u1ec1 tr\u00ean t\u1ea1i \u0111\u00e2y.<\/p>\n<p><strong>Th\u1ed1ng k\u00ea:<\/strong> Nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 th\u1ed1ng k\u00ea l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ti\u1ebfp t\u1ee5c v\u1edbi b\u1ea5t k\u1ef3 b\u00e0i to\u00e1n Machine Learning n\u00e0o. Vi\u1ec7c hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m th\u1ed1ng k\u00ea l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft b\u1edfi v\u00ec h\u1ea7u h\u1ebft c\u00e1c kh\u00e1i ni\u1ec7m h\u1ecdc s\u00e2u \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c \u0111\u1ed3ng h\u00f3a c\u00e1c kh\u00e1i ni\u1ec7m th\u1ed1ng k\u00ea.<\/p>\n<p><strong>C\u00f4ng c\u1ee5:<\/strong> C\u1ea7n c\u00f3 k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh \u1edf m\u1ee9c \u0111\u1ed9 kh\u00e1 \u0111\u1ec3 tri\u1ec3n khai Deep Learning v\u00e0o c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c ti\u1ec5n trong cu\u1ed9c s\u1ed1ng. Python l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef kh\u00e1 ph\u1ed5 bi\u1ebfn \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c d\u1ef1 \u00e1n Deep Learning.<\/p>\n<p><strong>Machine Learning:<\/strong> Machine Learning l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 ti\u1ebfn \u0111\u1ebfn l\u0129nh v\u1ef1c Deep Learning. Ng\u01b0\u1eddi ta kh\u00f4ng th\u1ec3 b\u1eaft \u0111\u1ea7u h\u1ecdc Deep Learning n\u1ebfu kh\u00f4ng hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 Machine Learning.<\/p>\n<h3><a id=\"dl05\"><\/a>T\u1ea1i sao c\u00e1c GPU (b\u1ed9 t\u0103ng t\u1ed1c \u0111\u1ed3 h\u1ecda) l\u1ea1i c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh Deep Learning?<\/h3>\n<p>GPU r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc s\u00e2u v\u00ec ch\u00fang cung c\u1ea5p s\u1ee9c m\u1ea1nh x\u1eed l\u00fd song song c\u1ea7n thi\u1ebft cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u00ednh to\u00e1n chuy\u00ean s\u00e2u li\u00ean quan \u0111\u1ebfn \u0111\u00e0o t\u1ea1o v\u00e0 ch\u1ea1y c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc s\u00e2u, \u0111\u1ed3ng th\u1eddi ch\u00fang \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a h\u1ec7 sinh th\u00e1i Deep Learning.<\/p>\n<h3><a id=\"dl06\"><\/a>Convolutional Neural Network (CNN) l\u00e0 g\u00ec?<\/h3>\n<p>Convolutional Neural Network (CNN) l\u00e0 m\u1ed9t lo\u1ea1i m\u1ea1ng neural nh\u00e2n t\u1ea1o th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho ph\u00e2n lo\u1ea1i v\u00e0 nh\u1eadn d\u1ea1ng h\u00ecnh \u1ea3nh. N\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng b\u1ed9 l\u1ecdc t\u00edch ch\u1eadp v\u00e0o h\u00ecnh \u1ea3nh \u0111\u1ea7u v\u00e0o \u0111\u1ec3 tr\u00edch xu\u1ea5t \u0111\u1eb7c tr\u01b0ng, sau \u0111\u00f3 \u0111\u01b0a v\u00e0o m\u1ed9t m\u1ea1ng neural k\u1ebft n\u1ed1i \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 th\u1ef1c hi\u1ec7n d\u1ef1 \u0111o\u00e1n.<\/p>\n<h3><a id=\"dl07\"><\/a>Recurrent Neural Network (RNN) l\u00e0 g\u00ec?<\/h3>\n<p>Recurrent Neural Network (RNN) l\u00e0 m\u1ed9t lo\u1ea1i m\u1ea1ng neural nh\u00e2n t\u1ea1o th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c m\u00f4 h\u00ecnh chu\u1ed7i v\u00e0 d\u1ef1 \u0111o\u00e1n chu\u1ed7i th\u1eddi gian. N\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd c\u00e1c chu\u1ed7i \u0111\u1ea7u v\u00e0o m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1 v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ea7u ra t\u1eeb m\u1ed7i b\u01b0\u1edbc l\u00e0m \u0111\u1ea7u v\u00e0o cho b\u01b0\u1edbc ti\u1ebfp theo.<\/p>\n<h3><a id=\"dl08\"><\/a>Reinforcement Learning l\u00e0 g\u00ec?<\/h3>\n<p>Reinforcement Learning l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p Machine Learning m\u00e0 m\u1ed9t agent \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n \u0111\u1ec3 t\u00ecm c\u00e1ch t\u1ed1i \u0111a h\u00f3a t\u00edn hi\u1ec7u th\u01b0\u1edfng trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng. Agent \u0111\u00f3 th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u th\u01b0\u1edfng ho\u1eb7c ph\u1ea1t t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c h\u00e0nh \u0111\u1ed9ng \u0111\u00f3. M\u1ee5c ti\u00eau c\u1ee7a agent l\u00e0 t\u00ecm ra chi\u1ebfn l\u01b0\u1ee3c t\u1ed1t nh\u1ea5t \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a t\u00edn hi\u1ec7u th\u01b0\u1edfng trong t\u01b0\u01a1ng lai.<\/p>\n<p>Reinforcement Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 robot, xe t\u1ef1 h\u00e0nh, tr\u00f2 ch\u01a1i, t\u1ed1i \u01b0u h\u00f3a t\u00e0i ch\u00ednh, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng quy\u1ebft \u0111\u1ecbnh. N\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00e0 kh\u00f4ng c\u00f3 m\u1ed9t t\u1eadp d\u1eef li\u1ec7u \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u1ed9t m\u00f4 h\u00ecnh truy\u1ec1n th\u1ed1ng. Th\u00f4ng qua vi\u1ec7c t\u01b0\u01a1ng t\u00e1c tr\u1ef1c ti\u1ebfp v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 h\u1ecdc t\u1eeb c\u00e1c t\u00edn hi\u1ec7u th\u01b0\u1edfng, Reinforcement Learning c\u00f3 th\u1ec3 t\u00ecm ra c\u00e1c chi\u1ebfn l\u01b0\u1ee3c m\u1edbi v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p.<\/p>\n<h3><a id=\"dl09\"><\/a>Transfer Learning l\u00e0 g\u00ec?<\/h3>\n<p>Transfer Learning l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt trong Machine Learning v\u00e0 Deep Learning, cho ph\u00e9p s\u1eed d\u1ee5ng l\u1ea1i c\u00e1c m\u00f4 h\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n tr\u01b0\u1edbc \u0111\u00f3 \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c. Thay v\u00ec hu\u1ea5n luy\u1ec7n m\u1ed9t m\u00f4 h\u00ecnh t\u1eeb \u0111\u1ea7u cho m\u1ed7i v\u1ea5n \u0111\u1ec1 m\u1edbi, Transfer Learning cho ph\u00e9p ta t\u1eadn d\u1ee5ng ki\u1ebfn th\u1ee9c t\u1eeb m\u1ed9t m\u00f4 h\u00ecnh hu\u1ea5n luy\u1ec7n tr\u01b0\u1edbc \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh m\u1edbi.<\/p>\n<p>C\u1ee5 th\u1ec3, ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t m\u00f4 h\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n tr\u00ean t\u1eadp d\u1eef li\u1ec7u l\u1edbn \u0111\u1ec3 r\u00fat tr\u00edch c\u00e1c \u0111\u1eb7c tr\u01b0ng (feature) c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o, sau \u0111\u00f3 s\u1eed d\u1ee5ng c\u00e1c \u0111\u1eb7c tr\u01b0ng \u0111\u00f3 \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u1ed9t m\u00f4 h\u00ecnh m\u1edbi cho v\u1ea5n \u0111\u1ec1 kh\u00e1c. Vi\u1ec7c n\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c cho vi\u1ec7c hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh m\u1edbi, \u0111\u1ed3ng th\u1eddi c\u0169ng gi\u1ea3m thi\u1ec3u nguy c\u01a1 overfitting.<\/p>\n<p>Transfer Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c b\u00e0i to\u00e1n Computer Vision, nh\u01b0 nh\u1eadn di\u1ec7n h\u00ecnh \u1ea3nh, ph\u00e2n lo\u1ea1i \u1ea3nh, v\u00e0 x\u1eed l\u00fd \u1ea3nh y t\u1ebf. C\u00e1c m\u00f4 h\u00ecnh nh\u01b0 VGG, ResNet, v\u00e0 Inception \u0111\u00e3 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n tr\u00ean c\u00e1c t\u1eadp d\u1eef li\u1ec7u l\u1edbn nh\u01b0 ImageNet, v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u01a1 s\u1edf \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh m\u1edbi cho c\u00e1c b\u00e0i to\u00e1n kh\u00e1c.<\/p>\n<h3><a id=\"dl10\"><\/a>Overfitting l\u00e0 g\u00ec?<\/h3>\n<p>Overfitting l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng m\u00f4 h\u00ecnh Machine Learning ho\u1eb7c Deep Learning \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n qu\u00e1 t\u1ed1t tr\u00ean d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n m\u00e0 n\u00f3 \u0111\u00e3 h\u1ecdc thu\u1ed9c c\u00e1c chi ti\u1ebft kh\u00f4ng c\u1ea7n thi\u1ebft ho\u1eb7c nhi\u1ec5u trong d\u1eef li\u1ec7u n\u00e0y, g\u00e2y ra hi\u1ec7u su\u1ea5t k\u00e9m tr\u00ean d\u1eef li\u1ec7u m\u1edbi ho\u1eb7c kh\u00f4ng quen thu\u1ed9c.<\/p>\n<p>Trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n, m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 h\u1ecdc qu\u00e1 s\u00e1t d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n, bao g\u1ed3m c\u1ea3 nhi\u1ec5u ho\u1eb7c s\u1ef1 t\u00ecnh c\u1edd, thay v\u00ec h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c tr\u01b0ng chung ho\u1eb7c kh\u00e1i qu\u00e1t h\u01a1n c\u1ee7a d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn m\u00f4 h\u00ecnh ch\u1ec9 ph\u00f9 h\u1ee3p v\u1edbi d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n v\u00e0 kh\u00f4ng th\u1ec3 t\u1ed5ng qu\u00e1t h\u00f3a cho c\u00e1c t\u1eadp d\u1eef li\u1ec7u m\u1edbi.<\/p>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 tr\u00e1nh overfitting bao g\u1ed3m s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111a d\u1ea1ng h\u01a1n, gi\u1ea3m thi\u1ec3u \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00f4 h\u00ecnh, s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt Dropout, Regularization, hay Early Stopping. Ngo\u00e0i ra, ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh tr\u00ean t\u1eadp d\u1eef li\u1ec7u ki\u1ec3m tra l\u00e0 m\u1ed9t c\u00e1ch \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 overfitting c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<h3><a id=\"dl11\"><\/a>Underfitting l\u00e0 g\u00ec?<\/h3>\n<p>Underfitting l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng m\u00f4 h\u00ecnh Machine Learning ho\u1eb7c Deep Learning kh\u00f4ng h\u1ecdc \u0111\u01b0\u1ee3c \u0111\u1ee7 ki\u1ebfn th\u1ee9c t\u1eeb d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n v\u00e0 kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1t tr\u00ean c\u1ea3 t\u1eadp hu\u1ea5n luy\u1ec7n v\u00e0 t\u1eadp ki\u1ec3m tra.<\/p>\n<p>Trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n, n\u1ebfu m\u00f4 h\u00ecnh qu\u00e1 \u0111\u01a1n gi\u1ea3n ho\u1eb7c kh\u00f4ng \u0111\u1ee7 ph\u1ee9c t\u1ea1p \u0111\u1ec3 h\u1ecdc c\u00e1c m\u1eabu ph\u1ee9c t\u1ea1p c\u1ee7a d\u1eef li\u1ec7u, n\u00f3 s\u1ebd kh\u00f4ng th\u1ec3 d\u1ef1 \u0111o\u00e1n ch\u00ednh x\u00e1c cho c\u1ea3 t\u1eadp hu\u1ea5n luy\u1ec7n v\u00e0 t\u1eadp ki\u1ec3m tra. Khi m\u1ed9t m\u00f4 h\u00ecnh underfitting, ch\u00fang ta c\u1ea7n c\u1ea3i thi\u1ec7n ki\u1ebfn tr\u00fac c\u1ee7a m\u00f4 h\u00ecnh, t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00f4 h\u00ecnh, s\u1eed d\u1ee5ng c\u00e1c \u0111\u1eb7c tr\u01b0ng ph\u1ee9c t\u1ea1p h\u01a1n, ho\u1eb7c t\u0103ng th\u00eam d\u1eef li\u1ec7u hu\u1ea5n luy\u1ec7n \u0111\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 tr\u00e1nh underfitting bao g\u1ed3m s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p h\u01a1n, s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt t\u0103ng c\u01b0\u1eddng d\u1eef li\u1ec7u, t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a m\u00f4 h\u00ecnh b\u1eb1ng c\u00e1ch th\u00eam l\u1edbp ho\u1eb7c n\u00e2ng cao \u0111\u1ed9 s\u00e2u c\u1ee7a m\u00f4 h\u00ecnh, ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n t\u1ed1i \u01b0u h\u00f3a ph\u00f9 h\u1ee3p h\u01a1n. Ki\u1ec3m tra hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh tr\u00ean t\u1eadp ki\u1ec3m tra l\u00e0 m\u1ed9t c\u00e1ch \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 underfitting c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<h3><a id=\"dl12\"><\/a>Hyperparameter l\u00e0 g\u00ec?<\/h3>\n<p>Hyperparameter l\u00e0 c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a m\u00f4 h\u00ecnh Machine Learning ho\u1eb7c Deep Learning kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ecdc t\u1eeb d\u1eef li\u1ec7u m\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp b\u1edfi ng\u01b0\u1eddi l\u1eadp tr\u00ecnh ho\u1eb7c c\u00e1c chuy\u00ean gia trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh.<\/p>\n<p>C\u00e1c hyperparameter c\u00f3 th\u1ec3 bao g\u1ed3m s\u1ed1 l\u01b0\u1ee3ng l\u1edbp, s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb trong m\u1ed7i l\u1edbp, h\u1ec7 s\u1ed1 h\u1ecdc t\u1eadp, s\u1ed1 l\u1ea7n l\u1eb7p l\u1ea1i trong qu\u00e1 tr\u00ecnh hu\u1ea5n luy\u1ec7n, h\u1ec7 s\u1ed1 l\u01b0\u1ee3ng t\u1eed h\u00f3a, h\u1ec7 s\u1ed1 ki\u1ec3m so\u00e1t, t\u1ed1c \u0111\u1ed9 h\u1ecdc t\u0103ng (learning rate decay), v.v.<\/p>\n<p>T\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i m\u00f4 h\u00ecnh v\u00e0 t\u1eadp d\u1eef li\u1ec7u, c\u00e1c hyperparameter kh\u00e1c nhau c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4 h\u00ecnh. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ch\u00fang ta ph\u1ea3i t\u00ecm ki\u1ebfm v\u00e0 ch\u1ecdn ra c\u00e1c gi\u00e1 tr\u1ecb hyperparameter t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t tr\u00ean t\u1eadp d\u1eef li\u1ec7u ki\u1ec3m tra.<\/p>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 t\u00ecm ki\u1ebfm hyperparameter t\u1ed1t nh\u1ea5t bao g\u1ed3m s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed v\u00e0 sai, t\u00ecm ki\u1ebfm ng\u1eabu nhi\u00ean, t\u00ecm ki\u1ebfm theo l\u01b0\u1edbi (grid search), t\u00ecm ki\u1ebfm b\u1eb1ng thu\u1eadt to\u00e1n t\u1ed1i \u01b0u (nh\u01b0 Gradient Descent) v\u00e0 t\u1ed1i \u01b0u h\u00f3a b\u1eb1ng h\u1ecdc m\u00e1y.<\/p>\n<div>____<br \/><b>B\u00e0i vi\u1ebft li\u00ean quan<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=20284\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn GPU ph\u00f9 h\u1ee3p cho AI, Machine Learning<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=19248\">T\u00f4i c\u00f3 c\u1ea7n CPU k\u00e9p kh\u00f4ng?<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=18963\">HPE v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p ph\u00e1t tri\u1ec3n m\u00f4 h\u00ecnh Tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=18070\">C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a Generative AI trong H\u1ecdc s\u00e2u, Khoa h\u1ecdc \u0111\u1eddi s\u1ed1ng v\u00e0 S\u00e1ng t\u1ea1o n\u1ed9i dung<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=18025\">Dask &#8211; M\u1ed9t th\u01b0 vi\u1ec7n m\u00e3 ngu\u1ed3n m\u1edf cho t\u00ednh to\u00e1n song song v\u1edbi Python<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=18008\">NVIDIA CUDA trong AI Deep Learning<\/a><\/li>\n<\/ul>\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Deep Learning l&agrave; m&#7897;t c&ocirc;ng ngh&#7879; h&#7885;c m&aacute;y ti&ecirc;n ti&#7871;n, c&oacute; nhi&#7873;u &#7913;ng d&#7909;ng v&agrave; l&#7907;i &iacute;ch trong nhi&#7873;u l&#297;nh v&#7921;c, v&agrave; c&oacute; kh&#7843; n&#259;ng gi&#7843;i quy&#7871;t c&aacute;c v&#7845;n &#273;&#7873; ph&#7913;c t&#7841;p, gi&uacute;p &#273;&oacute;ng g&oacute;p t&iacute;ch c&#7921;c cho s&#7921; ph&aacute;t tri&#7875;n c&#7911;a nhi&#7873;u ng&agrave;nh c&ocirc;ng nghi&#7879;p kh&aacute;c nhau. D&#432;&#7899;i &#273;&acirc;y l&agrave; c&aacute;c c&acirc;u h&#7887;i th&#432;&#7901;ng&#8230;<\/p>\n","protected":false},"author":2,"featured_media":15550,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[3],"tags":[12,1069],"class_list":["post-15549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-hpc","tag-deep-learning","tag-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p trong l\u0129nh v\u1ef1c Deep Learning - Blog | TheGioiMayChu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thegioimaychu.vn\/blog\/ai-hpc\/cac-cau-hoi-thuong-gap-trong-linh-vuc-deep-learning-p15549\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p trong l\u0129nh v\u1ef1c Deep Learning - Blog | TheGioiMayChu\" \/>\n<meta name=\"twitter:description\" content=\"Deep Learning l&agrave; m&#7897;t c&ocirc;ng ngh&#7879; h&#7885;c m&aacute;y ti&ecirc;n ti&#7871;n, c&oacute; nhi&#7873;u &#7913;ng d&#7909;ng v&agrave; l&#7907;i &iacute;ch trong nhi&#7873;u l&#297;nh v&#7921;c, v&agrave; c&oacute; kh&#7843; n&#259;ng gi&#7843;i quy&#7871;t c&aacute;c v&#7845;n &#273;&#7873; ph&#7913;c t&#7841;p, gi&uacute;p &#273;&oacute;ng g&oacute;p t&iacute;ch c&#7921;c cho s&#7921; ph&aacute;t tri&#7875;n c&#7911;a nhi&#7873;u ng&agrave;nh c&ocirc;ng nghi&#7879;p kh&aacute;c nhau. 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