{"id":25889,"date":"2025-03-24T10:36:53","date_gmt":"2025-03-24T03:36:53","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=25889"},"modified":"2025-03-24T10:36:53","modified_gmt":"2025-03-24T03:36:53","slug":"unsupervised-learning-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/","title":{"rendered":"Unsupervised Learning l\u00e0 g\u00ec? 3+ Thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 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\/unsupervised-learning-la-gi\/#Unsupervised-Learning-la-gi\" >Unsupervised Learning 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\/unsupervised-learning-la-gi\/#Cac-loai-thuat-toan-hoc-khong-giam-sat-chinh\" >C\u00e1c lo\u1ea1i thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t ch\u00ednh<\/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\/unsupervised-learning-la-gi\/#Loi-ich-cua-Unsupervised-Learning\" >L\u1ee3i \u00edch c\u1ee7a Unsupervised Learning<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Kham-pha-cau-truc-an-trong-du-lieu\" >Kh\u00e1m ph\u00e1 c\u1ea5u tr\u00fac \u1ea9n trong d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Khong-yeu-cau-du-lieu-gan-nhan-tiet-kiem-chi-phi\" >Kh\u00f4ng y\u00eau c\u1ea7u d\u1eef li\u1ec7u g\u00e1n nh\u00e3n, ti\u1ebft ki\u1ec7m chi ph\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Tien-xu-ly-du-lieu-cho-Supervised-Learning\" >Ti\u1ec1n x\u1eed l\u00fd d\u1eef li\u1ec7u cho Supervised Learning<\/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\/unsupervised-learning-la-gi\/#Xu-ly-du-lieu-thieu-missing-data\" >X\u1eed l\u00fd d\u1eef li\u1ec7u thi\u1ebfu (missing data)<\/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\/unsupervised-learning-la-gi\/#Phat-hien-bat-thuong-Anomaly-Detection\" >Ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng (Anomaly Detection)<\/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\/unsupervised-learning-la-gi\/#Thach-thuc-cua-Unsupervised-Learning\" >Th\u00e1ch th\u1ee9c c\u1ee7a Unsupervised Learning<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Kho-khan-trong-viec-danh-gia-ket-qua\" >Kh\u00f3 kh\u0103n trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Ket-qua-kho-dien-giai-va-truc-quan-hoa\" >K\u1ebft qu\u1ea3 kh\u00f3 di\u1ec5n gi\u1ea3i v\u00e0 tr\u1ef1c quan h\u00f3a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Lua-chon-thuat-toan-va-tham-so-phu-hop\" >L\u1ef1a ch\u1ecdn thu\u1eadt to\u00e1n v\u00e0 tham s\u1ed1 ph\u00f9 h\u1ee3p<\/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\/unsupervised-learning-la-gi\/#Nhay-cam-voi-nhieu-va-du-lieu-ngoai-lai-outliers\" >Nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u v\u00e0 d\u1eef li\u1ec7u ngo\u1ea1i lai (outliers)<\/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\/unsupervised-learning-la-gi\/#Kha-nang-mo-rong-scalability\" >Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng (scalability)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Ung-dung-cua-Unsupervised-Learning-hien-nay\" >\u1ee8ng d\u1ee5ng c\u1ee7a Unsupervised Learning hi\u1ec7n nay<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Phan-khuc-khach-hang-Customer-Segmentation\" >Ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng (Customer Segmentation)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Goi-y-san-pham-Recommendation-Systems\" >G\u1ee3i \u00fd s\u1ea3n ph\u1ea9m (Recommendation Systems)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Phat-hien-gian-lan-Fraud-Detection\" >Ph\u00e1t hi\u1ec7n gian l\u1eadn (Fraud Detection)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Xu-ly-anh-va-thi-giac-may-tinh-Image-Processing-and-Computer-Vision\" >X\u1eed l\u00fd \u1ea3nh v\u00e0 th\u1ecb gi\u00e1c m\u00e1y t\u00ednh (Image Processing and Computer Vision)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Xu-ly-ngon-ngu-tu-nhien-Natural-Language-Processing-%E2%80%93-NLP\" >X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (Natural Language Processing &#8211; NLP)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Y-Sinh-Biomedical\" >Y Sinh (Biomedical)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Cac-cau-hoi-thuong-gap-FAQ\" >C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Hoc-khong-giam-sat-co-phai-la-tri-tue-nhan-tao-AI-khong\" >H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 ph\u1ea3i l\u00e0 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Toi-nen-su-dung-thuat-toan-hoc-khong-giam-sat-nao\" >T\u00f4i n\u00ean s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Lam-the-nao-de-biet-ket-qua-cua-hoc-khong-giam-sat-la-%E2%80%9Ctot%E2%80%9D\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft k\u1ebft qu\u1ea3 c\u1ee7a h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 &#8220;t\u1ed1t&#8221;?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Hoc-khong-giam-sat-co-the-giai-quyet-moi-van-de-khong\" >H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1 kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Can-bao-nhieu-du-lieu-de-su-dung-hoc-khong-giam-sat\" >C\u1ea7n bao nhi\u00eau d\u1eef li\u1ec7u \u0111\u1ec3 s\u1eed d\u1ee5ng h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/#Unsupervised-Learning-co-giong-voi-Deep-Learning-khong\" >Unsupervised Learning c\u00f3 gi\u1ed1ng v\u1edbi Deep Learning kh\u00f4ng?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>B\u1ea1n \u0111\u00e3 bao gi\u1edd t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o m\u00e1y t\u00ednh c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng ph\u00e2n lo\u1ea1i h\u00e0ng tri\u1ec7u b\u1ee9c \u1ea3nh m\u00e0 kh\u00f4ng c\u1ea7n ai ch\u1ec9 cho n\u00f3 bi\u1ebft \u0111\u00e2u l\u00e0 c\u00e2y \u0111\u00e2u l\u00e0 \u0111\u1ed9ng v\u1eadt? \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t (Unsupervised Learning). B\u00e0i vi\u1ebft sau InterData s\u1ebd gi\u1ea3i m\u00e3 kh\u00e1i ni\u1ec7m &#8220;<a href=\"https:\/\/interdata.vn\/blog\/unsupervised-learning-la-gi\/\">Unsupervised Learning l\u00e0 g\u00ec<\/a>&#8220;, kh\u00e1m ph\u00e1 c\u00e1c thu\u1eadt to\u00e1n ph\u1ed5 bi\u1ebfn c\u00f9ng nh\u1eefng \u1ee9ng d\u1ee5ng, l\u1ee3i \u00edch v\u00e0 th\u00e1ch th\u1ee9c c\u1ee7a n\u00f3. C\u00f9ng t\u00ecm hi\u1ec3u ngay!<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Unsupervised-Learning-la-gi\"><\/span>Unsupervised Learning l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t (Unsupervised Learning) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc m\u00e1y m\u00e0 thu\u1eadt to\u00e1n t\u1ef1 t\u00ecm ra c\u1ea5u tr\u00fac v\u00e0 m\u1ed1i quan h\u1ec7 trong d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 nh\u00e3n d\u00e1n hay h\u01b0\u1edbng d\u1eabn tr\u01b0\u1edbc n\u00e0o<\/strong>. N\u00f3i c\u00e1ch kh\u00e1c, h\u1ec7 th\u1ed1ng t\u1ef1 h\u1ecdc t\u1eeb d\u1eef li\u1ec7u &#8220;th\u00f4&#8221;. M\u1ee5c ti\u00eau l\u00e0 kh\u00e1m ph\u00e1 c\u00e1c m\u1eabu \u1ea9n, nh\u00f3m d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1.<\/p>\n<figure id=\"attachment_25902\" aria-describedby=\"caption-attachment-25902\" style=\"width: 799px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Unsupervised-Learning-la-gi.png\" alt=\"Unsupervised Learning l\u00e0 g\u00ec?\" width=\"799\" height=\"342\" class=\"size-full wp-image-25902\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Unsupervised-Learning-la-gi.png 799w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Unsupervised-Learning-la-gi-300x128.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Unsupervised-Learning-la-gi-768x329.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Unsupervised-Learning-la-gi-750x321.png 750w\" sizes=\"auto, (max-width: 799px) 100vw, 799px\" \/><figcaption id=\"caption-attachment-25902\" class=\"wp-caption-text\">Unsupervised Learning l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt machine learning, c\u00e1c thu\u1eadt to\u00e1n t\u1ef1 ph\u00e2n t\u00edch v\u00e0 t\u00ecm ra c\u00e1c nh\u00f3m (clusters), ho\u1eb7c m\u1ed1i li\u00ean h\u1ec7 ti\u1ec1m \u1ea9n trong d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 can thi\u1ec7p ho\u1eb7c h\u01b0\u1edbng d\u1eabn c\u1ee7a con ng\u01b0\u1eddi. Thu\u1eadt to\u00e1n kh\u00f4ng \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1ea5t k\u1ef3 th\u00f4ng tin n\u00e0o, ch\u1ec9 c\u00f3 d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-loai-thuat-toan-hoc-khong-giam-sat-chinh\"><\/span>C\u00e1c lo\u1ea1i thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i thu\u1eadt to\u00e1n, nh\u01b0ng ba lo\u1ea1i ch\u00ednh l\u00e0: ph\u00e2n c\u1ee5m (<a href=\"https:\/\/interdata.vn\/blog\/clustering-la-gi\/\">clustering<\/a>), gi\u1ea3m chi\u1ec1u d\u1eef li\u1ec7u (dimensionality reduction), v\u00e0 h\u1ecdc lu\u1eadt k\u1ebft h\u1ee3p (association rule learning). M\u1ed7i lo\u1ea1i c\u00f3 m\u1ee5c ti\u00eau v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng ri\u00eang, ph\u1ee5c v\u1ee5 cho c\u00e1c b\u00e0i to\u00e1n kh\u00e1c nhau trong th\u1ef1c t\u1ebf, t\u1eeb ph\u00e2n t\u00edch d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng \u0111\u1ebfn x\u1eed l\u00fd \u1ea3nh, v\u0103n b\u1ea3n.<\/p>\n<ul>\n<li><strong>Ph\u00e2n c\u1ee5m (Clustering)<\/strong>: M\u1ee5c ti\u00eau ch\u00ednh l\u00e0 nh\u00f3m c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1 l\u1ea1i v\u1edbi nhau. V\u00ed d\u1ee5: ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng d\u1ef1a tr\u00ean h\u00e0nh vi mua s\u1eafm. M\u1ed9t thu\u1eadt to\u00e1n ph\u1ed5 bi\u1ebfn l\u00e0 K-Means, chia d\u1eef li\u1ec7u th\u00e0nh K c\u1ee5m, trong \u0111\u00f3 m\u1ed7i \u0111i\u1ec3m d\u1eef li\u1ec7u thu\u1ed9c v\u1ec1 c\u1ee5m c\u00f3 trung t\u00e2m g\u1ea7n nh\u1ea5t. C\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u01b0\u1ee3c nh\u00f3m l\u1ea1i.<\/li>\n<li><strong>Gi\u1ea3m chi\u1ec1u d\u1eef li\u1ec7u (Dimensionality Reduction)<\/strong>: Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng bi\u1ebfn (\u0111\u1eb7c tr\u01b0ng) trong d\u1eef li\u1ec7u, nh\u01b0ng v\u1eabn gi\u1eef l\u1ea1i th\u00f4ng tin quan tr\u1ecdng. V\u00ed d\u1ee5: trong x\u1eed l\u00fd \u1ea3nh, gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng pixel m\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng ch\u00ednh c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. <a href=\"https:\/\/interdata.vn\/blog\/pca-la-gi\/\">PCA<\/a> (Principal Component Analysis) l\u00e0 m\u1ed9t thu\u1eadt to\u00e1n ph\u1ed5 bi\u1ebfn, t\u00ecm ra c\u00e1c &#8220;th\u00e0nh ph\u1ea7n ch\u00ednh&#8221; \u0111\u1ec3 bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u.<\/li>\n<li><strong>H\u1ecdc lu\u1eadt k\u1ebft h\u1ee3p (Association Rule Learning)<\/strong>: T\u00ecm ra m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c m\u1ee5c trong d\u1eef li\u1ec7u. V\u00ed d\u1ee5: trong ph\u00e2n t\u00edch gi\u1ecf h\u00e0ng si\u00eau th\u1ecb, ph\u00e1t hi\u1ec7n ra r\u1eb1ng kh\u00e1ch h\u00e0ng th\u01b0\u1eddng mua &#8220;bia&#8221; v\u00e0 &#8220;t\u00e3&#8221; c\u00f9ng nhau. Apriori l\u00e0 m\u1ed9t thu\u1eadt to\u00e1n kinh \u0111i\u1ec3n, x\u00e1c \u0111\u1ecbnh c\u00e1c t\u1eadp m\u1ee5c th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n c\u00f9ng nhau trong c\u00e1c giao d\u1ecbch. Vi\u1ec7c n\u00e0y h\u1ed7 tr\u1ee3 g\u1ee3i \u00fd.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u1ec1 H\u1ecdc Kh\u00f4ng Gi\u00e1m S\u00e1t:<\/strong><\/p>\n<p>H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn mu\u1ed1n c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m mua s\u1eafm c\u1ee7a kh\u00e1ch h\u00e0ng. H\u1ecd c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t \u0111\u1ec3 ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng d\u1ef1a tr\u00ean l\u1ecbch s\u1eed mua h\u00e0ng, h\u00e0nh vi duy\u1ec7t web, v\u00e0 c\u00e1c th\u00f4ng tin kh\u00e1c. K\u1ebft qu\u1ea3 l\u00e0, h\u1ecd c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c chi\u1ebfn d\u1ecbch ti\u1ebfp th\u1ecb \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a, gi\u1edbi thi\u1ec7u \u0111\u00fang ng\u01b0\u1eddi.<\/p>\n<p>M\u1ed9t v\u00ed d\u1ee5 kh\u00e1c l\u00e0 ph\u00e1t hi\u1ec7n gian l\u1eadn trong giao d\u1ecbch ng\u00e2n h\u00e0ng. B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch c\u00e1c giao d\u1ecbch, thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c giao d\u1ecbch b\u1ea5t th\u01b0\u1eddng, c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 gian l\u1eadn. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u00e2n h\u00e0ng b\u1ea3o v\u1ec7 t\u00e0i kho\u1ea3n c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro t\u00e0i ch\u00ednh, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt cho h\u1ec7 th\u1ed1ng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-ich-cua-Unsupervised-Learning\"><\/span>L\u1ee3i \u00edch c\u1ee7a Unsupervised Learning<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Unsupervised Learning mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch quan tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t trong b\u1ed1i c\u1ea3nh d\u1eef li\u1ec7u l\u1edbn (Big Data) ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn. Kh\u1ea3 n\u0103ng t\u1ef1 kh\u00e1m ph\u00e1 th\u00f4ng tin ti\u1ec1m \u1ea9n trong d\u1eef li\u1ec7u m\u00e0 <strong>kh\u00f4ng c\u1ea7n s\u1ef1 can thi\u1ec7p c\u1ee7a con ng\u01b0\u1eddi<\/strong> l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong nhi\u1ec1u l\u0129nh v\u1ef1c.<\/p>\n<p>Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u1ee3i \u00edch \u0111\u1ec3 b\u1ea1n hi\u1ec3u h\u01a1n Unsupervised Learning l\u00e0 g\u00ec:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kham-pha-cau-truc-an-trong-du-lieu\"><\/span>Kh\u00e1m ph\u00e1 c\u1ea5u tr\u00fac \u1ea9n trong d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t trong nh\u1eefng l\u1ee3i \u00edch l\u1edbn nh\u1ea5t c\u1ee7a Unsupervised Learning l\u00e0 kh\u1ea3 n\u0103ng <strong>ph\u00e1t hi\u1ec7n c\u00e1c m\u1eabu, c\u1ea5u tr\u00fac, v\u00e0 m\u1ed1i quan h\u1ec7 \u1ea9n<\/strong> trong d\u1eef li\u1ec7u m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 b\u1ecf qua. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi l\u00e0m vi\u1ec7c v\u1edbi d\u1eef li\u1ec7u ph\u1ee9c t\u1ea1p v\u00e0 \u0111a chi\u1ec1u, n\u01a1i m\u00e0 vi\u1ec7c ph\u00e2n t\u00edch th\u1ee7 c\u00f4ng tr\u1edf n\u00ean kh\u00f3 kh\u0103n ho\u1eb7c kh\u00f4ng kh\u1ea3 thi.<\/p>\n<p>V\u00ed d\u1ee5, m\u1ed9t c\u00f4ng ty vi\u1ec5n th\u00f4ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Unsupervised Learning \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u cu\u1ed9c g\u1ecdi c\u1ee7a h\u00e0ng tri\u1ec7u kh\u00e1ch h\u00e0ng. Thu\u1eadt to\u00e1n c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng nh\u00f3m c\u00e1c kh\u00e1ch h\u00e0ng c\u00f3 h\u00e0nh vi t\u01b0\u01a1ng t\u1ef1 l\u1ea1i v\u1edbi nhau, gi\u00fap c\u00f4ng ty hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng kh\u00e1c nhau v\u00e0 t\u1ea1o ra c\u00e1c g\u00f3i c\u01b0\u1edbc ph\u00f9 h\u1ee3p.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khong-yeu-cau-du-lieu-gan-nhan-tiet-kiem-chi-phi\"><\/span>Kh\u00f4ng y\u00eau c\u1ea7u d\u1eef li\u1ec7u g\u00e1n nh\u00e3n, ti\u1ebft ki\u1ec7m chi ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u1ecdc c\u00f3 gi\u00e1m s\u00e1t (Supervised Learning) \u0111\u00f2i h\u1ecfi d\u1eef li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c g\u00e1n nh\u00e3n, m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ed1n k\u00e9m v\u00e0 m\u1ea5t th\u1eddi gian, \u0111\u1eb7c bi\u1ec7t v\u1edbi l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn. Unsupervised Learning lo\u1ea1i b\u1ecf y\u00eau c\u1ea7u n\u00e0y, gi\u00fap <strong>ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 chi ph\u00ed<\/strong> <strong>v\u00e0 th\u1eddi gian chu\u1ea9n b\u1ecb d\u1eef li\u1ec7u<\/strong>. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf r\u1ea5t l\u1edbn.<\/p>\n<p>V\u00ed d\u1ee5, vi\u1ec7c g\u00e1n nh\u00e3n cho h\u00e0ng tri\u1ec7u h\u00ecnh \u1ea3nh \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u1ed9t m\u00f4 h\u00ecnh nh\u1eadn d\u1ea1ng \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 t\u1ed1n h\u00e0ng tr\u0103m ngh\u00ecn \u0111\u00f4 la v\u00e0 nhi\u1ec1u th\u00e1ng l\u00e0m vi\u1ec7c. V\u1edbi Unsupervised Learning, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp d\u1eef li\u1ec7u \u1ea3nh th\u00f4 m\u00e0 kh\u00f4ng c\u1ea7n g\u00e1n nh\u00e3n, gi\u00fap ti\u1ebft ki\u1ec7m r\u1ea5t nhi\u1ec1u ngu\u1ed3n l\u1ef1c.<\/p>\n<figure id=\"attachment_25903\" aria-describedby=\"caption-attachment-25903\" style=\"width: 977px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Loi-ich-cua-Unsupervised-Learning-la-gi.webp\" alt=\"L\u1ee3i \u00edch c\u1ee7a Unsupervised Learning \" width=\"977\" height=\"559\" class=\"wp-image-25903 size-full\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Loi-ich-cua-Unsupervised-Learning-la-gi.webp 977w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Loi-ich-cua-Unsupervised-Learning-la-gi-300x172.webp 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Loi-ich-cua-Unsupervised-Learning-la-gi-768x439.webp 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Loi-ich-cua-Unsupervised-Learning-la-gi-750x429.webp 750w\" sizes=\"auto, (max-width: 977px) 100vw, 977px\" \/><figcaption id=\"caption-attachment-25903\" class=\"wp-caption-text\">L\u1ee3i \u00edch c\u1ee7a Unsupervised Learning<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tien-xu-ly-du-lieu-cho-Supervised-Learning\"><\/span>Ti\u1ec1n x\u1eed l\u00fd d\u1eef li\u1ec7u cho Supervised Learning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Unsupervised Learning c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t b\u01b0\u1edbc <strong>ti\u1ec1n <a href=\"https:\/\/interdata.vn\/blog\/data-preprocessing-la-gi\/\">x\u1eed l\u00fd d\u1eef li\u1ec7u<\/a> hi\u1ec7u qu\u1ea3<\/strong> cho c\u00e1c b\u00e0i to\u00e1n Supervised Learning. B\u1eb1ng c\u00e1ch gi\u1ea3m chi\u1ec1u d\u1eef li\u1ec7u ho\u1eb7c tr\u00edch xu\u1ea5t c\u00e1c \u0111\u1eb7c tr\u01b0ng quan tr\u1ecdng, Unsupervised Learning gi\u00fap <strong>c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t<\/strong> v\u00e0 <strong>\u0111\u1ed9 ch\u00ednh x\u00e1c<\/strong> c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh Supervised Learning.<\/p>\n<p>V\u00ed d\u1ee5, tr\u01b0\u1edbc khi x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4 h\u00ecnh d\u1ef1 \u0111o\u00e1n gi\u00e1 nh\u00e0, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng PCA (Principal Component Analysis) \u0111\u1ec3 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng bi\u1ebfn \u0111\u1ea7u v\u00e0o, lo\u1ea1i b\u1ecf c\u00e1c bi\u1ebfn kh\u00f4ng quan tr\u1ecdng ho\u1eb7c nhi\u1ec5u. \u0110i\u1ec1u n\u00e0y gi\u00fap m\u00f4 h\u00ecnh h\u1ecdc nhanh h\u01a1n v\u00e0 cho k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c h\u01a1n, \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u r\u1ee7i ro.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xu-ly-du-lieu-thieu-missing-data\"><\/span>X\u1eed l\u00fd d\u1eef li\u1ec7u thi\u1ebfu (missing data)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong th\u1ef1c t\u1ebf, d\u1eef li\u1ec7u th\u01b0\u1eddng kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7, ch\u1ee9a c\u00e1c gi\u00e1 tr\u1ecb thi\u1ebfu (missing values). Unsupervised Learning, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n c\u1ee5m, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n ho\u1eb7c \u0111i\u1ec1n c\u00e1c gi\u00e1 tr\u1ecb thi\u1ebfu n\u00e0y d\u1ef1a tr\u00ean s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u kh\u00e1c. D\u1eef li\u1ec7u thi\u1ebfu c\u00f3 th\u1ec3 g\u00e2y ra nhi\u1ec1u sai l\u1ec7ch.<\/p>\n<p>V\u00ed d\u1ee5, trong m\u1ed9t b\u1ed9 d\u1eef li\u1ec7u v\u1ec1 th\u00f4ng tin kh\u00e1ch h\u00e0ng, m\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 kh\u00f4ng cung c\u1ea5p th\u00f4ng tin v\u1ec1 \u0111\u1ed9 tu\u1ed5i. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ph\u00e2n c\u1ee5m, b\u1ea1n c\u00f3 th\u1ec3 nh\u00f3m c\u00e1c kh\u00e1ch h\u00e0ng c\u00f3 th\u00f4ng tin t\u01b0\u01a1ng t\u1ef1 l\u1ea1i v\u1edbi nhau v\u00e0 \u01b0\u1edbc t\u00ednh \u0111\u1ed9 tu\u1ed5i c\u1ee7a kh\u00e1ch h\u00e0ng thi\u1ebfu th\u00f4ng tin d\u1ef1a tr\u00ean \u0111\u1ed9 tu\u1ed5i trung b\u00ecnh c\u1ee7a nh\u00f3m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phat-hien-bat-thuong-Anomaly-Detection\"><\/span>Ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng (Anomaly Detection)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Unsupervised Learning r\u1ea5t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c <strong>ph\u00e1t hi\u1ec7n c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u b\u1ea5t th\u01b0\u1eddng<\/strong>, hay c\u00f2n g\u1ecdi l\u00e0 ngo\u1ea1i l\u1ec7 (outliers). C\u00e1c \u0111i\u1ec3m b\u1ea5t th\u01b0\u1eddng n\u00e0y c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a gian l\u1eadn, l\u1ed7i h\u1ec7 th\u1ed1ng, ho\u1eb7c c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1eb7c bi\u1ec7t c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd. Vi\u1ec7c ph\u00e1t hi\u1ec7n s\u1edbm r\u1ea5t quan tr\u1ecdng.<\/p>\n<p>V\u00ed d\u1ee5, trong l\u0129nh v\u1ef1c an ninh m\u1ea1ng, Unsupervised Learning c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng trong l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng, c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng. Trong s\u1ea3n xu\u1ea5t, n\u00f3 c\u00f3 th\u1ec3 gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c s\u1ea3n ph\u1ea9m l\u1ed7i d\u1ef1a tr\u00ean d\u1eef li\u1ec7u c\u1ea3m bi\u1ebfn t\u1eeb d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Thach-thuc-cua-Unsupervised-Learning\"><\/span>Th\u00e1ch th\u1ee9c c\u1ee7a Unsupervised Learning<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1eb7c d\u00f9 Unsupervised Learning mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, n\u00f3 c\u0169ng \u0111i k\u00e8m v\u1edbi m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c \u0111\u00e1ng k\u1ec3. Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u00e1p d\u1ee5ng Unsupervised Learning m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 tr\u00e1nh nh\u1eefng sai l\u1ea7m kh\u00f4ng \u0111\u00e1ng c\u00f3. Nh\u1eefng kh\u00f3 kh\u0103n c\u1ea7n ph\u1ea3i ch\u00fa \u00fd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kho-khan-trong-viec-danh-gia-ket-qua\"><\/span>Kh\u00f3 kh\u0103n trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a Unsupervised Learning l\u00e0 <strong>\u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng<\/strong> c\u1ee7a k\u1ebft qu\u1ea3. Kh\u00f4ng gi\u1ed1ng nh\u01b0 Supervised Learning, n\u01a1i c\u00f3 c\u00e1c \u0111\u1ed9 \u0111o r\u00f5 r\u00e0ng nh\u01b0 \u0111\u1ed9 ch\u00ednh x\u00e1c (accuracy) ho\u1eb7c F1-score, Unsupervised Learning th\u01b0\u1eddng <strong>kh\u00f4ng c\u00f3 &#8220;\u0111\u00e1p \u00e1n \u0111\u00fang&#8221;<\/strong> \u0111\u1ec3 so s\u00e1nh. Vi\u1ec7c n\u00e0y g\u00e2y ra kh\u00f3 kh\u0103n l\u1edbn.<\/p>\n<p>V\u00ed d\u1ee5, khi s\u1eed d\u1ee5ng K-Means \u0111\u1ec3 ph\u00e2n c\u1ee5m d\u1eef li\u1ec7u, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft s\u1ed1 l\u01b0\u1ee3ng c\u1ee5m (K) n\u00e0o l\u00e0 t\u1ed1t nh\u1ea5t? C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 \u0111\u00e1nh gi\u00e1, nh\u01b0 Silhouette score ho\u1eb7c Elbow method, nh\u01b0ng ch\u00fang ch\u1ec9 mang t\u00ednh ch\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng cho k\u1ebft qu\u1ea3 r\u00f5 r\u00e0ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ket-qua-kho-dien-giai-va-truc-quan-hoa\"><\/span>K\u1ebft qu\u1ea3 kh\u00f3 di\u1ec5n gi\u1ea3i v\u00e0 tr\u1ef1c quan h\u00f3a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n Unsupervised Learning th\u01b0\u1eddng <strong>kh\u00f3 di\u1ec5n gi\u1ea3i<\/strong> v\u00e0 <strong>tr\u1ef1c quan h\u00f3a<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi l\u00e0m vi\u1ec7c v\u1edbi d\u1eef li\u1ec7u nhi\u1ec1u chi\u1ec1u. Vi\u1ec7c hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a c\u00e1c c\u1ee5m ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh (trong PCA) \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n v\u00e0 kinh nghi\u1ec7m. C\u1ea7n c\u00f3 chuy\u00ean gia \u0111\u1ec3 ph\u00e2n t\u00edch.<\/p>\n<figure id=\"attachment_25905\" aria-describedby=\"caption-attachment-25905\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Thach-thuc-cua-Unsupervised-Learning.png\" alt=\"Th\u00e1ch th\u1ee9c c\u1ee7a Unsupervised Learning\" width=\"800\" height=\"457\" class=\"size-full wp-image-25905\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Thach-thuc-cua-Unsupervised-Learning.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Thach-thuc-cua-Unsupervised-Learning-300x171.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Thach-thuc-cua-Unsupervised-Learning-768x439.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Thach-thuc-cua-Unsupervised-Learning-750x428.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-25905\" class=\"wp-caption-text\">Th\u00e1ch th\u1ee9c c\u1ee7a Unsupervised Learning<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Lua-chon-thuat-toan-va-tham-so-phu-hop\"><\/span>L\u1ef1a ch\u1ecdn thu\u1eadt to\u00e1n v\u00e0 tham s\u1ed1 ph\u00f9 h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u thu\u1eadt to\u00e1n Unsupervised Learning kh\u00e1c nhau, m\u1ed7i thu\u1eadt to\u00e1n l\u1ea1i c\u00f3 nhi\u1ec1u <a href=\"https:\/\/interdata.vn\/blog\/tham-so-parameter-la-gi\/\">tham s\u1ed1<\/a> c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh. Vi\u1ec7c <strong>l\u1ef1a ch\u1ecdn thu\u1eadt to\u00e1n<\/strong> v\u00e0 <strong>tham s\u1ed1 ph\u00f9 h\u1ee3p<\/strong> cho m\u1ed9t b\u00e0i to\u00e1n c\u1ee5 th\u1ec3 \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n, th\u1eed nghi\u1ec7m v\u00e0 \u0111\u00e1nh gi\u00e1 k\u1ef9 l\u01b0\u1ee1ng. Vi\u1ec7c sai s\u00f3t r\u1ea5t t\u1ed1n th\u1eddi gian.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nhay-cam-voi-nhieu-va-du-lieu-ngoai-lai-outliers\"><\/span>Nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u v\u00e0 d\u1eef li\u1ec7u ngo\u1ea1i lai (outliers)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t s\u1ed1 thu\u1eadt to\u00e1n Unsupervised Learning, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c thu\u1eadt to\u00e1n ph\u00e2n c\u1ee5m d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch nh\u01b0 K-Means, r\u1ea5t <strong>nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec5u<\/strong> v\u00e0 <strong>d\u1eef li\u1ec7u ngo\u1ea1i lai<\/strong>. C\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 l\u00e0m sai l\u1ec7ch k\u1ebft qu\u1ea3 ph\u00e2n c\u1ee5m ho\u1eb7c gi\u1ea3m chi\u1ec1u d\u1eef li\u1ec7u. C\u1ea7n l\u00e0m s\u1ea1ch d\u1eef li\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-mo-rong-scalability\"><\/span>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng (scalability)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t s\u1ed1 thu\u1eadt to\u00e1n Unsupervised Learning, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c thu\u1eadt to\u00e1n ph\u00e2n c\u1ee5m, c\u00f3 th\u1ec3 <strong>g\u1eb7p kh\u00f3 kh\u0103n<\/strong> khi x\u1eed l\u00fd <strong>d\u1eef li\u1ec7u r\u1ea5t l\u1edbn (very large datasets)<\/strong>. \u0110\u1ed9 ph\u1ee9c t\u1ea1p t\u00ednh to\u00e1n c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n n\u00e0y c\u00f3 th\u1ec3 t\u0103ng l\u00ean r\u1ea5t nhanh khi s\u1ed1 l\u01b0\u1ee3ng \u0111i\u1ec3m d\u1eef li\u1ec7u ho\u1eb7c s\u1ed1 chi\u1ec1u t\u0103ng l\u00ean. C\u1ea7n ph\u1ea3i t\u1ed1i \u01b0u h\u00f3a.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ung-dung-cua-Unsupervised-Learning-hien-nay\"><\/span>\u1ee8ng d\u1ee5ng c\u1ee7a Unsupervised Learning hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Unsupervised Learning \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, t\u1eeb kinh doanh, khoa h\u1ecdc \u0111\u1ebfn c\u00f4ng ngh\u1ec7. Kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng kh\u00e1m ph\u00e1 c\u00e1c m\u1eabu v\u00e0 c\u1ea5u tr\u00fac \u1ea9n trong d\u1eef li\u1ec7u \u0111\u00e3 m\u1edf ra nh\u1eefng c\u01a1 h\u1ed9i m\u1edbi, gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i to\u00e1n ph\u1ee9c t\u1ea1p v\u00e0 mang l\u1ea1i gi\u00e1 tr\u1ecb thi\u1ebft th\u1ef1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phan-khuc-khach-hang-Customer-Segmentation\"><\/span>Ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng (Customer Segmentation)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a Unsupervised Learning trong kinh doanh. C\u00e1c doanh nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n ph\u00e2n c\u1ee5m nh\u01b0 K-Means \u0111\u1ec3 <strong>chia kh\u00e1ch h\u00e0ng th\u00e0nh c\u00e1c nh\u00f3m<\/strong> d\u1ef1a tr\u00ean h\u00e0nh vi mua s\u1eafm, s\u1edf th\u00edch, nh\u00e2n kh\u1ea9u h\u1ecdc, v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c. Ph\u00e2n t\u00edch k\u1ef9 \u0111\u1ec3 c\u00f3 chi\u1ebfn l\u01b0\u1ee3c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Goi-y-san-pham-Recommendation-Systems\"><\/span>G\u1ee3i \u00fd s\u1ea3n ph\u1ea9m (Recommendation Systems)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c h\u1ec7 th\u1ed1ng g\u1ee3i \u00fd s\u1ea3n ph\u1ea9m, nh\u01b0 tr\u00ean c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed (Amazon, Tiki, Shopee) ho\u1eb7c c\u00e1c d\u1ecbch v\u1ee5 xem phim tr\u1ef1c tuy\u1ebfn (Netflix, Spotify), s\u1eed d\u1ee5ng Unsupervised Learning \u0111\u1ec3 <strong>\u0111\u1ec1 xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m<\/strong> ho\u1eb7c <strong>n\u1ed9i dung<\/strong> m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 quan t\u00e2m. Vi\u1ec7c n\u00e0y d\u1ef1a tr\u00ean l\u1ecbch s\u1eed t\u01b0\u01a1ng t\u00e1c.<\/p>\n<figure id=\"attachment_25906\" aria-describedby=\"caption-attachment-25906\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Ung-dung-cua-Unsupervised-Learning-hien-nay.jpg\" alt=\"\u1ee8ng d\u1ee5ng c\u1ee7a Unsupervised Learning hi\u1ec7n nay\" width=\"800\" height=\"384\" class=\"size-full wp-image-25906\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Ung-dung-cua-Unsupervised-Learning-hien-nay.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Ung-dung-cua-Unsupervised-Learning-hien-nay-300x144.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Ung-dung-cua-Unsupervised-Learning-hien-nay-768x369.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/03\/Ung-dung-cua-Unsupervised-Learning-hien-nay-750x360.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-25906\" class=\"wp-caption-text\">\u1ee8ng d\u1ee5ng c\u1ee7a Unsupervised Learning hi\u1ec7n nay<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Phat-hien-gian-lan-Fraud-Detection\"><\/span>Ph\u00e1t hi\u1ec7n gian l\u1eadn (Fraud Detection)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Unsupervised Learning, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng (Anomaly Detection), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 <strong>x\u00e1c \u0111\u1ecbnh c\u00e1c giao d\u1ecbch<\/strong> ho\u1eb7c <strong>ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng ng\u1edd<\/strong> c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 gian l\u1eadn. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng trong l\u0129nh v\u1ef1c t\u00e0i ch\u00ednh, ng\u00e2n h\u00e0ng v\u00e0 b\u1ea3o hi\u1ec3m. Ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xu-ly-anh-va-thi-giac-may-tinh-Image-Processing-and-Computer-Vision\"><\/span>X\u1eed l\u00fd \u1ea3nh v\u00e0 th\u1ecb gi\u00e1c m\u00e1y t\u00ednh (Image Processing and Computer Vision)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Unsupervised Learning \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u b\u00e0i to\u00e1n x\u1eed l\u00fd \u1ea3nh v\u00e0 th\u1ecb gi\u00e1c m\u00e1y t\u00ednh, nh\u01b0 <strong>ph\u00e2n \u0111o\u1ea1n \u1ea3nh (<a href=\"https:\/\/interdata.vn\/blog\/image-segmentation-la-gi\/\">image segmentation<\/a>)<\/strong>, <strong>n\u00e9n \u1ea3nh (image compression)<\/strong>, v\u00e0 <strong>nh\u1eadn d\u1ea1ng \u0111\u1ed1i t\u01b0\u1ee3ng (object recognition)<\/strong>. C\u1ea7n c\u00f3 ph\u1ea7n c\u1ee9ng \u0111\u1ee7 m\u1ea1nh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xu-ly-ngon-ngu-tu-nhien-Natural-Language-Processing-%E2%80%93-NLP\"><\/span>X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (Natural Language Processing &#8211; NLP)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong l\u0129nh v\u1ef1c NLP, Unsupervised Learning \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 <strong>ph\u00e2n t\u00edch ch\u1ee7 \u0111\u1ec1 (topic modeling)<\/strong>, <strong>t\u00f3m t\u1eaft v\u0103n b\u1ea3n (text summarization)<\/strong>, v\u00e0 <strong>ph\u00e2n t\u00edch c\u1ea3m x\u00fac (<a href=\"https:\/\/interdata.vn\/blog\/sentiment-analysis-la-gi\/\">sentiment analysis<\/a>)<\/strong>. Th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh ng\u00f4n ng\u1eef l\u1edbn.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Y-Sinh-Biomedical\"><\/span>Y Sinh (Biomedical)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong l\u0129nh v\u1ef1c y sinh, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u gen, x\u00e1c \u0111\u1ecbnh c\u00e1c nh\u00f3m b\u1ec7nh nh\u00e2n c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m di truy\u1ec1n t\u01b0\u01a1ng t\u1ef1, ho\u1eb7c d\u1ef1 \u0111o\u00e1n c\u00e1c protein. \u1ee8ng d\u1ee5ng n\u00e0y r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c ph\u00e1t tri\u1ec3n thu\u1ed1c.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-cau-hoi-thuong-gap-FAQ\"><\/span>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Hoc-khong-giam-sat-co-phai-la-tri-tue-nhan-tao-AI-khong\"><\/span>H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 ph\u1ea3i l\u00e0 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: C\u00f3, h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/tri-tue-nhan-tao-ai\/\">tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o<\/a> (AI). C\u1ee5 th\u1ec3 h\u01a1n, n\u00f3 l\u00e0 m\u1ed9t nh\u00e1nh c\u1ee7a h\u1ecdc m\u00e1y (Machine Learning), m\u00e0 Machine Learning l\u1ea1i l\u00e0 m\u1ed9t t\u1eadp con c\u1ee7a AI. H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t gi\u00fap m\u00e1y t\u00ednh t\u1ef1 h\u1ecdc t\u1eeb d\u1eef li\u1ec7u, m\u1ed9t kh\u1ea3 n\u0103ng quan tr\u1ecdng c\u1ee7a AI.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toi-nen-su-dung-thuat-toan-hoc-khong-giam-sat-nao\"><\/span>T\u00f4i n\u00ean s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: Vi\u1ec7c l\u1ef1a ch\u1ecdn thu\u1eadt to\u00e1n ph\u1ee5 thu\u1ed9c v\u00e0o b\u00e0i to\u00e1n c\u1ee5 th\u1ec3 v\u00e0 lo\u1ea1i d\u1eef li\u1ec7u b\u1ea1n c\u00f3. Kh\u00f4ng c\u00f3 thu\u1eadt to\u00e1n n\u00e0o l\u00e0 t\u1ed1t nh\u1ea5t cho m\u1ecdi tr\u01b0\u1eddng h\u1ee3p. B\u1ea1n c\u1ea7n th\u1eed nghi\u1ec7m v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00e1c thu\u1eadt to\u00e1n kh\u00e1c nhau (v\u00ed d\u1ee5: K-Means, DBSCAN, PCA) \u0111\u1ec3 t\u00ecm ra thu\u1eadt to\u00e1n ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Lam-the-nao-de-biet-ket-qua-cua-hoc-khong-giam-sat-la-%E2%80%9Ctot%E2%80%9D\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft k\u1ebft qu\u1ea3 c\u1ee7a h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 &#8220;t\u1ed1t&#8221;?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ed9 \u0111o n\u1ed9i b\u1ed9 (v\u00ed d\u1ee5: Silhouette score cho ph\u00e2n c\u1ee5m) ho\u1eb7c \u0111\u1ed9 \u0111o b\u00ean ngo\u00e0i (n\u1ebfu c\u00f3 m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u00e1n nh\u00e3n). Quan tr\u1ecdng nh\u1ea5t l\u00e0 k\u1ebft qu\u1ea3 ph\u1ea3i c\u00f3 \u00fd ngh\u0129a v\u00e0 h\u1eefu \u00edch cho b\u00e0i to\u00e1n c\u1ee7a b\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoc-khong-giam-sat-co-the-giai-quyet-moi-van-de-khong\"><\/span>H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1 kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: Kh\u00f4ng, h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea3i ph\u00e1p cho m\u1ecdi v\u1ea5n \u0111\u1ec1. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u00e0i to\u00e1n kh\u00e1m ph\u00e1 d\u1eef li\u1ec7u, t\u00ecm ki\u1ebfm c\u1ea5u tr\u00fac \u1ea9n, nh\u01b0ng kh\u00f4ng th\u1ec3 thay th\u1ebf ho\u00e0n to\u00e0n h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t trong c\u00e1c b\u00e0i to\u00e1n d\u1ef1 \u0111o\u00e1n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao (v\u00ed d\u1ee5: ph\u00e2n lo\u1ea1i email spam). C\u1ea7n xem x\u00e9t b\u00e0i to\u00e1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can-bao-nhieu-du-lieu-de-su-dung-hoc-khong-giam-sat\"><\/span>C\u1ea7n bao nhi\u00eau d\u1eef li\u1ec7u \u0111\u1ec3 s\u1eed d\u1ee5ng h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: Kh\u00f4ng c\u00f3 m\u1ed9t con s\u1ed1 c\u1ee5 th\u1ec3. Tuy nhi\u00ean, h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n v\u1edbi l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn, v\u00ec n\u00f3 c\u00f3 nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n \u0111\u1ec3 h\u1ecdc v\u00e0 t\u00ecm ra c\u00e1c m\u1eabu. V\u1edbi d\u1eef li\u1ec7u qu\u00e1 \u00edt, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u00e1ng tin c\u1eady ho\u1eb7c kh\u00f4ng c\u00f3 \u00fd ngh\u0129a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Unsupervised-Learning-co-giong-voi-Deep-Learning-khong\"><\/span>Unsupervised Learning c\u00f3 gi\u1ed1ng v\u1edbi Deep Learning kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Tr\u1ea3 l\u1eddi: Unsupervised Learning v\u00e0 Deep Learning c\u00f3 m\u1ed1i quan h\u1ec7 nh\u01b0ng kh\u00f4ng gi\u1ed1ng nhau. Deep Learning c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea3 ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t v\u00e0 kh\u00f4ng gi\u00e1m s\u00e1t. M\u1ed9t s\u1ed1 m\u00f4 h\u00ecnh Deep Learning, nh\u01b0 Autoencoders, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho Unsupervised Learning (v\u00ed d\u1ee5: gi\u1ea3m chi\u1ec1u d\u1eef li\u1ec7u). Deep Learning r\u1ea5t m\u1ea1nh.<\/p>\n<p>H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t (Unsupervised Learning) kh\u00f4ng ph\u1ea3i l\u00e0 &#8220;c\u00e2y \u0111\u0169a th\u1ea7n&#8221; gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1, nh\u01b0ng n\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 kh\u00e1m ph\u00e1 nh\u1eefng \u0111i\u1ec1u \u1ea9n gi\u1ea5u trong d\u1eef li\u1ec7u. C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a Unsupervised Learning \u0111ang ng\u00e0y c\u00e0ng m\u1edf r\u1ed9ng, hi\u1ec3u r\u00f5 v\u1ec1 Unsupervised Learning s\u1ebd m\u1edf ra nh\u1eefng c\u01a1 h\u1ed9i m\u1edbi trong k\u1ef7 nguy\u00ean d\u1eef li\u1ec7u.<\/p>\n<p>\u0110\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thu\u1eadt to\u00e1n Unsupervised Learning ph\u1ee9c t\u1ea1p, \u0111\u1eb7c bi\u1ec7t v\u1edbi d\u1eef li\u1ec7u l\u1edbn, b\u1ea1n c\u1ea7n m\u1ed9t h\u1ea1 t\u1ea7ng m\u1ea1nh m\u1ebd. InterData cung c\u1ea5p d\u1ecbch v\u1ee5 <a href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS ch\u1ea5t l\u01b0\u1ee3ng gi\u00e1 r\u1ebb<\/a>, s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng th\u1ebf h\u1ec7 m\u1edbi, CPU AMD EPYC\/Intel Xeon Platinum, v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/o-cung-ssd-nvme-la-gi\/\">\u1ed5 c\u1ee9ng SSD NVMe<\/a> U.2, \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng v\u01b0\u1ee3t tr\u1ed9i, x\u1eed l\u00ed nhanh.<\/p>\n<p>B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn <a href=\"https:\/\/interdata.vn\/cloud-server\/\">thu\u00ea Cloud Server gi\u00e1 r\u1ebb t\u1ed1c \u0111\u1ed9 cao<\/a> t\u1ea1i InterData. V\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/bang-thong-la-gi\/\">b\u0103ng th\u00f4ng<\/a> cao, c\u1ea5u h\u00ecnh m\u1ea1nh, v\u00e0 dung l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u, <a href=\"https:\/\/interdata.vn\/blog\/cloud-server-may-chu-dam-may\/\">Cloud Server<\/a> c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng t\u1ed1t nhu c\u1ea7u t\u00ednh to\u00e1n, l\u01b0u tr\u1eef v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u Unsupervised Learning, gi\u00fap b\u1ea1n tri\u1ec3n khai c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc m\u00e1y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, v\u1edbi m\u1ee9c chi ph\u00ed h\u1ee3p l\u00ed.<\/p>\n<p><strong>INTERDATA<\/strong><\/p>\n<ul>\n<li><strong><a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">Website<\/a>:<\/strong><span>\u00a0<\/span>Interdata.vn<\/li>\n<li><strong>Hotline:<\/strong><span>\u00a0<\/span>1900-636822<\/li>\n<li><strong>Email:<\/strong><span>\u00a0<\/span>Info@interdata.vn<\/li>\n<li><strong>VP\u0110D:<\/strong><span>\u00a0<\/span>240 Nguy\u1ec5n \u0110\u00ecnh Ch\u00ednh, P.11. Q. Ph\u00fa Nhu\u1eadn, TP. Ho\u0302\u0300 Ch\u00ed Minh<\/li>\n<li><strong>VPGD:<\/strong><span>\u00a0<\/span>S\u1ed1 211 \u0110\u01b0\u1eddng s\u1ed1 5, K\u0110T Lakeview City, P. An Ph\u00fa, TP. Th\u1ee7 \u0110\u1ee9c, TP. H\u1ed3 Ch\u00ed Minh<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea1n \u0111\u00e3 bao gi\u1edd t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o m\u00e1y t\u00ednh c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng ph\u00e2n lo\u1ea1i h\u00e0ng tri\u1ec7u b\u1ee9c \u1ea3nh m\u00e0 kh\u00f4ng c\u1ea7n ai ch\u1ec9 cho n\u00f3 bi\u1ebft \u0111\u00e2u l\u00e0 c\u00e2y \u0111\u00e2u l\u00e0 \u0111\u1ed9ng v\u1eadt? \u0110\u00f3 ch\u00ednh l\u00e0 s\u1ee9c m\u1ea1nh c\u1ee7a H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t (Unsupervised Learning). B\u00e0i vi\u1ebft sau InterData s\u1ebd gi\u1ea3i m\u00e3<\/p>\n","protected":false},"author":11,"featured_media":25898,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[116],"class_list":["post-25889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai","tag-unsupervised-learning"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/25889","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=25889"}],"version-history":[{"count":0,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/25889\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/25898"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=25889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=25889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=25889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}