{"id":52623,"date":"2025-04-23T12:50:05","date_gmt":"2025-04-23T04:50:05","guid":{"rendered":"http:\/\/test.swqi.tw\/?p=52623"},"modified":"2025-12-03T03:43:40","modified_gmt":"2025-12-02T19:43:40","slug":"ea-optimization-overfitting-guide","status":"publish","type":"post","link":"https:\/\/mister.forex\/vi\/ea-optimization-overfitting-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u C\u1ed1 v\u1ea5n chuy\u00ean gia (EA):&nbsp;C\u00e1ch c\u1ea3i thi\u1ec7n chi\u1ebfn l\u01b0\u1ee3c v\u00e0 tr\u00e1nh b\u1eaby qu\u00e1 kh\u1edbp"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"52623\" class=\"elementor elementor-52623\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-390437e e-flex e-con-boxed e-con e-parent\" data-id=\"390437e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ec447c elementor-widget elementor-widget-html translation-block\" data-id=\"6ec447c\" data-element_type=\"widget\" data-widget_type=\"html.default\"><div style=\"16px\"><span>\n<h2><strong>EA t\u1ed1i \u01b0u h\u00f3a v\u00e0 overfitting:&nbsp;L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u1ea3i thi\u1ec7n EA v\u00e0 tr\u00e1nh b\u1eaby?<\/strong>&nbsp;<\/h2>\n\nB\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e3 c\u00f3 hi\u1ec3u bi\u1ebft c\u01a1 b\u1ea3n v\u1ec1 <strong>C\u1ed1 v\u1ea5n chuy\u00ean gia (EA)<\/strong>, c\u0169ng bi\u1ebft c\u00e1ch th\u1ef1c hi\u1ec7n <strong>backtest<\/strong>&nbsp;\u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t chi\u1ebfn l\u01b0\u1ee3c trong qu\u00e1 kh\u1ee9.<br>\nV\u1eady b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 g\u00ec? \u0110\u00f4i khi, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 h\u1ecfi:&nbsp;\"Li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m cho hi\u1ec7u su\u1ea5t c\u1ee7a EA t\u1ed1t h\u01a1n m\u1ed9t ch\u00fat kh\u00f4ng?\"<br>\n\u0110\u00f3 ch\u00ednh l\u00e0 kh\u00e1i ni\u1ec7m v\u1ec1 \"<strong>t\u1ed1i \u01b0u h\u00f3a<\/strong>&nbsp;\".<br><br>\n\nNh\u01b0ng t\u1ed1i \u01b0u h\u00f3a gi\u1ed1ng nh\u01b0 \u0111i\u1ec1u ch\u1ec9nh nh\u1ea1c c\u1ee5, \u0111i\u1ec1u ch\u1ec9nh t\u1ed1t th\u00ec \u00e2m thanh hay h\u01a1n, \u0111i\u1ec1u ch\u1ec9nh kh\u00f4ng \u0111\u00fang c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch t\u00f4ng.<br>\nKhi t\u1ed1i \u01b0u h\u00f3a EA, c\u00f3 m\u1ed9t b\u1eaby ph\u1ed5 bi\u1ebfn g\u1ecdi l\u00e0 \"<strong>overfitting<\/strong>&nbsp;\", \u0111\u1eb7c bi\u1ec7t ng\u01b0\u1eddi m\u1edbi c\u1ea7n ph\u1ea3i c\u1ea9n th\u1eadn.<br><br>\n\n<h3><strong>T\u1ed1i \u01b0u h\u00f3a EA l\u00e0 g\u00ec?<\/strong>&nbsp;<\/h3>\nN\u00f3i \u0111\u01a1n gi\u1ea3n, t\u1ed1i \u01b0u h\u00f3a EA l\u00e0 c\u1ed1 g\u1eafng \u0111i\u1ec1u ch\u1ec9nh c\u00e1c thi\u1ebft l\u1eadp kh\u00e1c nhau c\u1ee7a EA (g\u1ecdi l\u00e0 \"<strong>tham s\u1ed1<\/strong>&nbsp;\"), nh\u1eb1m t\u00ecm ra b\u1ed9 tham s\u1ed1 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t tr\u00ean d\u1eef li\u1ec7u l\u1ecbch s\u1eed trong qu\u00e1 kh\u1ee9.<br><br>\n\n<strong>Gi\u1ed1ng nh\u01b0 \u0111i\u1ec1u ch\u1ec9nh radio:<\/strong>&nbsp;H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n \u0111ang v\u1eb7n n\u00fam radio \u0111\u1ec3 t\u00ecm t\u1ea7n s\u1ed1 c\u00f3 t\u00edn hi\u1ec7u r\u00f5 nh\u1ea5t, \u00e2m thanh hay nh\u1ea5t.<br>\nT\u1ed1i \u01b0u h\u00f3a EA c\u0169ng t\u01b0\u01a1ng t\u1ef1, b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c tham s\u1ed1 \u0111\u1ec3 t\u00ecm \"t\u1ea7n s\u1ed1 t\u1ed1i \u01b0u\".<br><br>\n\n<h4><strong>\u0110i\u1ec1u ch\u1ec9nh nh\u1eefng g\u00ec?<\/strong>&nbsp;<\/h4>\nB\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec1u tham s\u1ed1, t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf c\u1ee7a EA, v\u00ed d\u1ee5:&nbsp;<br>\n<ul>\n <li>Chu k\u1ef3 c\u1ee7a c\u00e1c ch\u1ec9 b\u00e1o k\u1ef9 thu\u1eadt (v\u00ed d\u1ee5 nh\u01b0 s\u1ed1 ng\u00e0y t\u00ednh trung b\u00ecnh \u0111\u1ed9ng).<\/li>\n <li>\u0110i\u1ec1u ki\u1ec7n v\u00e0o l\u1ec7nh ho\u1eb7c tho\u00e1t l\u1ec7nh.<\/li>\n <li><strong>Stop loss<\/strong>&nbsp;ho\u1eb7c <strong>take profit<\/strong>&nbsp;theo s\u1ed1 \u0111i\u1ec3m.<\/li>\n <li>S\u1ed1 lot ho\u1eb7c t\u1ef7 l\u1ec7 r\u1ee7i ro cho m\u1ed7i giao d\u1ecbch.<\/li>\n<\/ul><br>\n\n<h4><strong>M\u1ee5c ti\u00eau l\u00e0 g\u00ec?<\/strong>&nbsp;<\/h4>\nM\u1ee5c ti\u00eau l\u00e0 t\u00ecm m\u1ed9t b\u1ed9 tham s\u1ed1 \u0111\u1ec3 EA c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t khi backtest, v\u00ed d\u1ee5:&nbsp;<br>\n<ul>\n <li>Ki\u1ebfm \u0111\u01b0\u1ee3c nhi\u1ec1u ti\u1ec1n nh\u1ea5t.<\/li>\n <li>R\u1ee7i ro th\u1ea5p nh\u1ea5t (v\u00ed d\u1ee5 gi\u1ea3m t\u1ed1i thi\u1ec3u v\u1ed1n t\u1ed1i \u0111a).<\/li>\n <li>Ho\u1eb7c c\u00e1c ch\u1ec9 s\u1ed1 kh\u00e1c b\u1ea1n quan t\u00e2m (v\u00ed d\u1ee5 h\u1ec7 s\u1ed1 l\u1ee3i nhu\u1eadn cao nh\u1ea5t).<\/li>\n<\/ul><br>\n\n<h4><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u00e0m?<\/strong>&nbsp;<\/h4>\nTh\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng t\u1ed1i \u01b0u h\u00f3a trong <strong>MT4<\/strong>&nbsp;ho\u1eb7c <strong>MT5<\/strong>&nbsp;v\u1edbi c\u00f4ng c\u1ee5 \"<strong>Strategy Tester<\/strong>&nbsp;\".<br>\nN\u1ec1n t\u1ea3ng s\u1ebd t\u1ef1 \u0111\u1ed9ng th\u1eed nhi\u1ec1u t\u1ed5 h\u1ee3p tham s\u1ed1 kh\u00e1c nhau v\u00e0 cho b\u1ea1n bi\u1ebft t\u1ed5 h\u1ee3p n\u00e0o c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t trong qu\u00e1 kh\u1ee9.<br><br>\n\n<h3><strong>Overfitting l\u00e0 g\u00ec? (B\u1eaby c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd cho ng\u01b0\u1eddi m\u1edbi!)<\/strong>&nbsp;<\/h3>\nT\u1ed1i \u01b0u h\u00f3a nghe c\u00f3 v\u1ebb tuy\u1ec7t v\u1eddi, nh\u01b0ng c\u00f3 m\u1ed9t r\u1ee7i ro l\u1edbn g\u1ecdi l\u00e0 \"<strong>overfitting<\/strong>&nbsp;\", \u0111\u00f4i khi c\u00f2n g\u1ecdi l\u00e0 \"<strong>curve fitting<\/strong>&nbsp;\".<br><br>\n\n<h4><strong>\u00dd ngh\u0129a:<\/strong>&nbsp;<\/h4>\nOverfitting ngh\u0129a l\u00e0 b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh tham s\u1ed1 c\u1ee7a EA qu\u00e1 ho\u00e0n h\u1ea3o \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t \u0111o\u1ea1n d\u1eef li\u1ec7u l\u1ecbch s\u1eed c\u1ee5 th\u1ec3 trong qu\u00e1 kh\u1ee9.<br><br>\n\n<h4><strong>Gi\u1ed1ng nh\u01b0 h\u1ecdc thu\u1ed9c \u0111\u1ec1 thi c\u0169:<\/strong>&nbsp;<\/h4>\nH\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n ch\u1ec9 h\u1ecdc thu\u1ed9c l\u00f2ng \u0111\u1ec1 thi n\u0103m ngo\u00e1i, nh\u1edb r\u00f5 t\u1eebng c\u00e2u tr\u1ea3 l\u1eddi.<br>\nK\u1ebft qu\u1ea3 l\u00e0 \u0111\u1ec1 thi n\u0103m nay thay \u0111\u1ed5i m\u1ed9t ch\u00fat, b\u1ea1n c\u00f3 th\u1ec3 ho\u00e0n to\u00e0n kh\u00f4ng l\u00e0m \u0111\u01b0\u1ee3c.<br>\nEA b\u1ecb overfitting c\u0169ng v\u1eady, n\u00f3 qu\u00e1 \"quen thu\u1ed9c\" v\u1edbi \u0111\u1ec1 thi c\u0169 (d\u1eef li\u1ec7u l\u1ecbch s\u1eed), n\u00ean kh\u00f4ng th\u1ec3 \u1ee9ng ph\u00f3 v\u1edbi t\u00ecnh hu\u1ed1ng th\u1ecb tr\u01b0\u1eddng th\u1ef1c t\u1ebf trong t\u01b0\u01a1ng lai c\u00f3 ch\u00fat kh\u00e1c bi\u1ec7t.<br><br>\n\n<h4><strong>T\u1ea1i sao l\u1ea1i x\u1ea3y ra?<\/strong>&nbsp;<\/h4>\nB\u1edfi v\u00ec d\u1eef li\u1ec7u l\u1ecbch s\u1eed kh\u00f4ng ch\u1ec9 ch\u1ee9a quy lu\u1eadt th\u1ef1c s\u1ef1 c\u1ee7a th\u1ecb tr\u01b0\u1eddng m\u00e0 c\u00f2n c\u00f3 nhi\u1ec1u bi\u1ebfn \u0111\u1ed9ng ng\u1eabu nhi\u00ean, t\u00ecnh c\u1edd (g\u1ecdi l\u00e0 \"<strong>nhi\u1ec5u<\/strong>&nbsp;\").<br>\nKhi t\u1ed1i \u01b0u h\u00f3a qu\u00e1 m\u1ee9c, EA c\u00f3 th\u1ec3 h\u1ecdc v\u00e0 th\u00edch nghi c\u1ea3 nh\u1eefng nhi\u1ec5u n\u00e0y nh\u01b0 th\u1ec3 ch\u00fang l\u00e0 quy lu\u1eadt.<br><br>\n\n<h4><strong>H\u1eadu qu\u1ea3 l\u00e0 g\u00ec?<\/strong>&nbsp;<\/h4>\nEA b\u1ecb overfitting, d\u00f9 trong b\u00e1o c\u00e1o backtest tr\u00f4ng r\u1ea5t \u1ea5n t\u01b0\u1ee3ng (v\u00ed d\u1ee5 l\u1ee3i nhu\u1eadn c\u1ef1c cao, \u0111\u01b0\u1eddng cong ho\u00e0n h\u1ea3o \u0111i l\u00ean), nh\u01b0ng trong giao d\u1ecbch th\u1ef1c t\u1ebf t\u01b0\u01a1ng lai th\u01b0\u1eddng c\u00f3 hi\u1ec7u su\u1ea5t r\u1ea5t k\u00e9m, th\u1eadm ch\u00ed g\u00e2y thua l\u1ed7 nghi\u00eam tr\u1ecdng.<br><br>\n\n<h3><strong>T\u1ea1i sao overfitting l\u1ea1i l\u00e0 v\u1ea5n \u0111\u1ec1 l\u1edbn v\u1edbi ng\u01b0\u1eddi m\u1edbi?<\/strong>&nbsp;<\/h3>\n<ul>\n <li><strong>T\u1ea1o ni\u1ec1m tin sai l\u1ec7ch:<\/strong>&nbsp;Ng\u01b0\u1eddi m\u1edbi nh\u00ecn th\u1ea5y b\u00e1o c\u00e1o backtest ho\u00e0n h\u1ea3o sau t\u1ed1i \u01b0u h\u00f3a d\u1ec5 qu\u00e1 ph\u1ea5n kh\u00edch, ngh\u0129 r\u1eb1ng \u0111\u00e3 t\u00ecm \u0111\u01b0\u1ee3c \"ch\u00e9n th\u00e1nh\", \u0111\u1eb7t k\u1ef3 v\u1ecdng kh\u00f4ng th\u1ef1c t\u1ebf v\u00e0o EA.<\/li>\n <li><strong>D\u1eabn \u0111\u1ebfn thua l\u1ed7 th\u1ef1c t\u1ebf:<\/strong>&nbsp;Khi EA overfitting ho\u1ea1t \u0111\u1ed9ng k\u00e9m tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u1eadt, g\u00e2y m\u1ea5t ti\u1ec1n th\u1eadt, \u0111i\u1ec1u n\u00e0y g\u00e2y t\u1ed5n th\u01b0\u01a1ng l\u1edbn cho ng\u01b0\u1eddi m\u1edbi v\u00e0 l\u00e0m t\u0103ng n\u1ed7i s\u1ee3 giao d\u1ecbch.<\/li>\n <li><strong>Gi\u1ea3m \u0111\u1ed9ng l\u1ef1c h\u1ecdc t\u1eadp:<\/strong>&nbsp;Sau tr\u1ea3i nghi\u1ec7m \"backtest ki\u1ebfm nhi\u1ec1u ti\u1ec1n, giao d\u1ecbch th\u1eadt thua nhi\u1ec1u ti\u1ec1n\", ng\u01b0\u1eddi m\u1edbi c\u00f3 th\u1ec3 m\u1ea5t ni\u1ec1m tin v\u00e0o EA v\u00e0 c\u1ea3 giao d\u1ecbch, ngh\u0129 r\u1eb1ng \"t\u1ea5t c\u1ea3 \u0111\u1ec1u l\u1eeba \u0111\u1ea3o\".<\/li>\n<\/ul><br>\n\n<h3><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u00e1nh overfitting? (L\u1eddi khuy\u00ean \u0111\u01a1n gi\u1ea3n cho ng\u01b0\u1eddi m\u1edbi)<\/strong>&nbsp;<\/h3>\nHo\u00e0n to\u00e0n tr\u00e1nh overfitting r\u1ea5t kh\u00f3, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t s\u1ed1 c\u00e1ch \u0111\u1ec3 gi\u1ea3m r\u1ee7i ro:&nbsp;<br><br>\n<ol>\n <li><strong>\u0110\u1eebng t\u00ecm tham s\u1ed1 \"ho\u00e0n h\u1ea3o\":<\/strong>&nbsp;Khi t\u1ed1i \u01b0u, \u0111\u1eebng ch\u1ec9 t\u00ecm b\u1ed9 tham s\u1ed1 c\u00f3 l\u1ee3i nhu\u1eadn cao nh\u1ea5t. H\u00e3y th\u1eed t\u00ecm m\u1ed9t ph\u1ea1m vi tham s\u1ed1 m\u00e0 trong ph\u1ea1m vi \u0111\u00f3 EA ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 \u1ed5n \u0111\u1ecbnh. B\u1ed9 tham s\u1ed1 nh\u01b0 v\u1eady th\u01b0\u1eddng \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/li>\n <li><strong>S\u1eed d\u1ee5ng d\u1eef li\u1ec7u \"ngo\u00e0i m\u1eabu\" \u0111\u1ec3 ki\u1ec3m tra:<\/strong>&nbsp;\u0110\u00e2y l\u00e0 b\u01b0\u1edbc r\u1ea5t quan tr\u1ecdng. Chia d\u1eef li\u1ec7u l\u1ecbch s\u1eed th\u00e0nh hai ph\u1ea7n:&nbsp;m\u1ed9t ph\u1ea7n d\u00f9ng \u0111\u1ec3 t\u1ed1i \u01b0u (d\u1eef li\u1ec7u trong m\u1eabu), ph\u1ea7n c\u00f2n l\u1ea1i kh\u00f4ng d\u00f9ng \u0111\u1ec3 t\u1ed1i \u01b0u m\u00e0 ch\u1ec9 d\u00f9ng \u0111\u1ec3 ki\u1ec3m tra b\u1ed9 tham s\u1ed1 \"t\u1ed1i \u01b0u\" t\u00ecm \u0111\u01b0\u1ee3c (d\u1eef li\u1ec7u ngo\u00e0i m\u1eabu).<br>N\u1ebfu EA v\u1eabn ho\u1ea1t \u0111\u1ed9ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean d\u1eef li\u1ec7u ngo\u00e0i m\u1eabu, c\u00f3 th\u1ec3 n\u00f3 kh\u00f4ng b\u1ecb overfitting nghi\u00eam tr\u1ecdng.<br>MT5 c\u00f3 ch\u1ee9c n\u0103ng <strong>\"Forward Testing\"<\/strong>&nbsp;t\u00edch h\u1ee3p trong Strategy Tester gi\u00fap th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y.<\/li>\n <li><strong>\u3010Quan tr\u1ecdng nh\u1ea5t\u3011Ki\u1ec3m tra tr\u00ean t\u00e0i kho\u1ea3n demo:<\/strong>&nbsp;D\u00f9 k\u1ebft qu\u1ea3 backtest v\u00e0 t\u1ed1i \u01b0u c\u00f3 t\u1ed1t \u0111\u1ebfn \u0111\u00e2u, cu\u1ed1i c\u00f9ng b\u1ea1n ph\u1ea3i ch\u1ea1y EA \u0111\u00e3 t\u1ed1i \u01b0u tr\u00ean <strong>t\u00e0i kho\u1ea3n demo<\/strong>&nbsp;v\u1edbi d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng th\u1ef1c th\u1eddi gian th\u1ef1c trong m\u1ed9t kho\u1ea3ng th\u1eddi gian (\u00edt nh\u1ea5t v\u00e0i tu\u1ea7n, t\u1ed1t nh\u1ea5t v\u00e0i th\u00e1ng).<br>\u0110\u00e2y l\u00e0 b\u00e0i ki\u1ec3m tra th\u1ef1c chi\u1ebfn \u0111\u1ec3 x\u00e1c nh\u1eadn EA c\u00f3 th\u1ef1c s\u1ef1 hi\u1ec7u qu\u1ea3 hay kh\u00f4ng.<br>N\u1ebfu EA ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh tr\u00ean t\u00e0i kho\u1ea3n demo, b\u1ea1n m\u1edbi c\u00f3 th\u1ec3 t\u1ef1 tin c\u00e2n nh\u1eafc d\u00f9ng n\u00f3 tr\u00ean t\u00e0i kho\u1ea3n th\u1eadt.<\/li>\n <li><strong>Gi\u1eef chi\u1ebfn l\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n:<\/strong>&nbsp;Chi\u1ebfn l\u01b0\u1ee3c qu\u00e1 ph\u1ee9c t\u1ea1p, nhi\u1ec1u tham s\u1ed1 th\u01b0\u1eddng d\u1ec5 b\u1ecb overfitting h\u01a1n. \u0110\u00f4i khi chi\u1ebfn l\u01b0\u1ee3c \u0111\u01a1n gi\u1ea3n, v\u1eefng ch\u1eafc l\u1ea1i t\u1ed1t h\u01a1n.<\/li>\n <li><strong>Hi\u1ec3u r\u00f5 logic chi\u1ebfn l\u01b0\u1ee3c:<\/strong>&nbsp;\u0110\u1eebng ch\u1ec9 nh\u00ecn v\u00e0o con s\u1ed1 backtest. H\u00e3y c\u1ed1 g\u1eafng hi\u1ec3u logic giao d\u1ecbch c\u1ee7a EA l\u00e0 g\u00ec, t\u1ea1i sao n\u00f3 c\u00f3 th\u1ec3 ki\u1ebfm ti\u1ec1n.<br>N\u1ebfu b\u1ea1n c\u00f2n kh\u00f4ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c t\u1ea1i sao n\u00f3 hi\u1ec7u qu\u1ea3, th\u00ec c\u00e0ng ph\u1ea3i c\u1ea9n tr\u1ecdng h\u01a1n.<\/li>\n<\/ol><br>\n\n<h3><strong>T\u00f3m l\u1ea1i:&nbsp;T\u1ed1i \u01b0u h\u00f3a l\u00e0 con dao hai l\u01b0\u1ee1i<\/strong>&nbsp;<\/h3>\nT\u1ed1i \u01b0u h\u00f3a EA l\u00e0 c\u00f4ng c\u1ee5 gi\u00fap b\u1ea1n kh\u00e1m ph\u00e1 ti\u1ec1m n\u0103ng chi\u1ebfn l\u01b0\u1ee3c, c\u1ed1 g\u1eafng c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t EA.<br>\nNh\u01b0ng \u0111\u1ed3ng th\u1eddi c\u0169ng \u1ea9n ch\u1ee9a r\u1ee7i ro l\u1edbn v\u1ec1 \"<strong>overfitting<\/strong>&nbsp;\".<br><br>\n\nV\u1edbi ng\u01b0\u1eddi m\u1edbi, hi\u1ec3u overfitting l\u00e0 g\u00ec, t\u1ea1i sao n\u00f3 nguy hi\u1ec3m v\u00e0 c\u00e1ch h\u1ea1n ch\u1ebf n\u00f3 l\u00e0 r\u1ea5t quan tr\u1ecdng.<br>\n\u0110\u1eebng bao gi\u1edd tin v\u00e0o nh\u1eefng k\u1ebft qu\u1ea3 backtest qu\u00e1 ho\u00e0n h\u1ea3o.<br>\nH\u00e3y lu\u00f4n x\u00e1c minh EA c\u1ee7a b\u1ea1n qua <strong>ki\u1ec3m tra d\u1eef li\u1ec7u ngo\u00e0i m\u1eabu<\/strong>&nbsp;v\u00e0 <strong>th\u1eed nghi\u1ec7m d\u00e0i h\u1ea1n tr\u00ean t\u00e0i kho\u1ea3n demo<\/strong>.<br><br>\n\nH\u00e3y nh\u1edb, giao d\u1ecbch kh\u00f4ng c\u00f3 con \u0111\u01b0\u1eddng t\u1eaft.<br>\nGi\u1eef k\u1ef3 v\u1ecdng h\u1ee3p l\u00fd, ch\u00fa tr\u1ecdng qu\u1ea3n l\u00fd r\u1ee7i ro, li\u00ean t\u1ee5c h\u1ecdc h\u1ecfi, b\u1ea1n s\u1ebd \u0111i xa v\u00e0 v\u1eefng ch\u1eafc h\u01a1n tr\u00ean con \u0111\u01b0\u1eddng giao d\u1ecbch ngo\u1ea1i h\u1ed1i.<br>\n<\/span><\/div><\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4db92d1 elementor-icon-list--layout-inline elementor-tablet-align-center elementor-mobile-align-center elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"4db92d1\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-inline-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.mql5.com\/en\/users\/sagen520\/seller\" target=\"_blank\" rel=\"nofollow noopener\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-link\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Mr.Forex \u0111\u00e3 \u0111\u0103ng Expert Advisor tr\u00ean MQL5. M\u1eddi b\u1ea1n gh\u00e9 xem v\u00e0 kh\u00e1m ph\u00e1.<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-459b678 elementor-widget elementor-widget-template\" data-id=\"459b678\" data-element_type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<div data-elementor-type=\"container\" data-elementor-id=\"49848\" class=\"elementor elementor-49848\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43b58eaa e-flex e-con-boxed e-con e-parent\" data-id=\"43b58eaa\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-83f27ac elementor-widget elementor-widget-html translation-block\" data-id=\"83f27ac\" data-element_type=\"widget\" data-widget_type=\"html.default\"><span>\n<strong style=\"font-size: 1.2em\">\nXin ch\u00e0o, ch\u00fang t\u00f4i l\u00e0 <a href=\"https:\/\/mister.forex\/vi\/about-us\/\" target=\"_blank\" style=\"text-decoration: underline\">\u0110\u1ed9i ng\u0169 Nghi\u00ean c\u1ee9u Mr.Forex<\/a><\/strong><br>\n\nGiao d\u1ecbch kh\u00f4ng ch\u1ec9 c\u1ea7n t\u01b0 duy \u0111\u00fang \u0111\u1eafn m\u00e0 c\u00f2n c\u1ea7n c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 th\u00f4ng tin h\u1eefu \u00edch. Ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o \u0111\u00e1nh gi\u00e1 c\u00e1c nh\u00e0 m\u00f4i gi\u1edbi to\u00e0n c\u1ea7u, thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng giao d\u1ecbch (MT4 \/ MT5, EA, VPS) v\u00e0 n\u1ec1n t\u1ea3ng forex th\u1ef1c chi\u1ebfn. Ch\u00fang t\u00f4i tr\u1ef1c ti\u1ebfp h\u01b0\u1edbng d\u1eabn b\u1ea1n n\u1eafm v\u1eefng \"h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng\" c\u1ee7a th\u1ecb tr\u01b0\u1eddng t\u00e0i ch\u00ednh, x\u00e2y d\u1ef1ng m\u00f4i tr\u01b0\u1eddng giao d\u1ecbch chuy\u00ean nghi\u1ec7p t\u1eeb con s\u1ed1 kh\u00f4ng.<br>\n<br>\n\n<strong>N\u1ebfu b\u1ea1n mu\u1ed1n chuy\u1ec3n t\u1eeb l\u00fd thuy\u1ebft sang th\u1ef1c h\u00e0nh:<\/strong><br>\n1. H\u00e3y chia s\u1ebb b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 nhi\u1ec1u nh\u00e0 giao d\u1ecbch th\u1ea5y \u0111\u01b0\u1ee3c s\u1ef1 th\u1eadt.<br>\n2. \u0110\u1ecdc th\u00eam c\u00e1c b\u00e0i vi\u1ebft li\u00ean quan \u0111\u1ebfn <a href=\"https:\/\/mister.forex\/vi\/category\/learn-forex\/\" target=\"_blank\">H\u1ecdc Forex<\/a>.\n<\/span><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>EA t\u1ed1i \u01b0u h\u00f3a c\u00f3 th\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t, nh\u01b0ng overfitting (qu\u00e1 kh\u1edbp) l\u00e0 b\u1eaby th\u01b0\u1eddng g\u1eb7p \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi. Hi\u1ec3u c\u00e1ch nh\u1eadn bi\u1ebft curve fitting, \u0111\u1ed3ng th\u1eddi th\u00f4ng qua ki\u1ec3m tra ngo\u00e0i m\u1eabu v\u00e0 x\u00e1c minh b\u1eb1ng t\u00e0i kho\u1ea3n demo, tr\u00e1nh b\u1eaby backtest, x\u00e2y d\u1ef1ng chi\u1ebfn l\u01b0\u1ee3c giao d\u1ecbch t\u1ef1 \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"author":1,"featured_media":23597,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83,100],"tags":[128],"class_list":["post-52623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn-forex","category-expert-advisor","tag-no-google"],"_links":{"self":[{"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/posts\/52623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/comments?post=52623"}],"version-history":[{"count":0,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/posts\/52623\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/media\/23597"}],"wp:attachment":[{"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/media?parent=52623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/categories?post=52623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mister.forex\/vi\/wp-json\/wp\/v2\/tags?post=52623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}