{"id":868,"date":"2021-01-01T11:33:16","date_gmt":"2021-01-01T11:33:16","guid":{"rendered":"http:\/\/cafe2sach.com\/?p=868"},"modified":"2021-01-01T11:33:18","modified_gmt":"2021-01-01T11:33:18","slug":"tong-quan-ve-hoc-may","status":"publish","type":"post","link":"https:\/\/cafe2sach.com\/index.php\/2021\/01\/01\/tong-quan-ve-hoc-may\/","title":{"rendered":"T\u1ed5ng quan v\u1ec1 h\u1ecdc m\u00e1y"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>Trong  chu\u1ed7i b\u00e0i vi\u1ebft v\u1ec1 Deep learning, b\u00e0i \u0111\u1ea7u ti\u00ean n\u00e0y m\u00ecnh s\u1ebd kh\u00e1i qu\u00e1t v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 Machine learning hay c\u00f2n g\u1ecdi l\u00e0 h\u1ecdc m\u00e1y. Nghi\u00ean c\u1ee9u Deep learning \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ph\u1ea7n nghi\u00ean c\u1ee9u trong l\u0129nh v\u1ef1c h\u1ecdc m\u00e1y. <\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img fetchpriority=\"high\" decoding=\"async\" width=\"492\" height=\"327\" src=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/01\/Screen-Shot-2021-01-01-at-7.57.56-PM.png\" alt=\"\" data-id=\"869\" data-full-url=\"http:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/01\/Screen-Shot-2021-01-01-at-7.57.56-PM.png\" data-link=\"http:\/\/cafe2sach.com\/?attachment_id=869\" class=\"wp-image-869\" srcset=\"https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/01\/Screen-Shot-2021-01-01-at-7.57.56-PM.png 492w, https:\/\/cafe2sach.com\/wp-content\/uploads\/2021\/01\/Screen-Shot-2021-01-01-at-7.57.56-PM-300x199.png 300w\" sizes=\"(max-width: 492px) 100vw, 492px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<p>C\u00e1c thu\u1eadt to\u00e1n trong machine learning th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh 4 lo\u1ea1i ch\u00ednh nh\u01b0 sau:<\/p>\n\n\n\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">N\u1ed9i dung ch&iacute;nh<\/p><ul class=\"toc_list\"><li><a href=\"#Hoc_may_co_giam_sat\"><span class=\"toc_number toc_depth_1\">1<\/span>  H\u1ecdc m\u00e1y c\u00f3 gi\u00e1m s\u00e1t <\/a><\/li><li><a href=\"#Hoc_may_khong_giam_sat\"><span class=\"toc_number toc_depth_1\">2<\/span>  H\u1ecdc m\u00e1y kh\u00f4ng gi\u00e1m s\u00e1t<\/a><\/li><li><a href=\"#Tu_hoc_co_giam_sat\"><span class=\"toc_number toc_depth_1\">3<\/span>  T\u1ef1 h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t <\/a><\/li><li><a href=\"#Hoc_cung_co\"><span class=\"toc_number toc_depth_1\">4<\/span>  H\u1ecdc c\u1ee7ng c\u1ed1 <\/a><\/li><\/ul><\/div>\n<h3><span id=\"Hoc_may_co_giam_sat\"> H\u1ecdc m\u00e1y c\u00f3 gi\u00e1m s\u00e1t <\/span><\/h3>\n<p> Supervise learning l\u00e0 m\u1ed9t d\u1ea1ng ch\u1ee7 y\u1ebfu trong nhi\u1ec1u b\u00e0i to\u00e1n v\u1ec1 h\u1ecdc m\u00e1y. N\u00f3 bao g\u1ed3m vi\u1ec7c h\u1ecdc nh\u1eefng d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o m\u00e0 ta \u0111\u00e3 bi\u1ebft m\u1ee5c ti\u00eau hay c\u00f2n g\u1ecdi l\u00e0 nh\u00e3n (labels). Th\u00f4ng th\u01b0\u1eddng nh\u1eefng \u1ee9ng d\u1ee5ng c\u1ee7a deep learning g\u1ea7n \u0111\u1ea7y th\u01b0\u1eddng h\u01b0\u1edbng \u0111\u1ebfn l\u00e0: nh\u1eadn d\u1ea1ng s\u1ef1 v\u1eadt, nh\u1eadn d\u1ea1ng gi\u1ecdng n\u00f3i, ph\u00e2n l\u1edbp h\u00ecnh \u1ea3nh, d\u1ecbch m\u00e1y\nH\u1ecdc m\u00e1y c\u00f3 gi\u00e1m s\u00e1t h\u1ea7u h\u1ebft bao g\u1ed3m 2 b\u00e0i to\u00e1n l\u00e0: B\u00e0i to\u00e1n ph\u00e2n l\u1edbp v\u00e0 b\u00e0i to\u00e1n h\u1ed3i quy, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng ra m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 nh\u01b0: Sequence generation, syntax tree prediction, object detection, image sgmentation ( T\u1eebng v\u1ea5n \u0111\u1ec1 n\u00e0y m\u00ecnh s\u1ebd gi\u1edbi thi\u1ec7u \u1edf m\u1ed9t b\u00e0i vi\u1ebft kh\u00e1c c\u1ee5 th\u1ec3 h\u01a1n)\n<\/p>\n\n\n\n<h3><span id=\"Hoc_may_khong_giam_sat\"> H\u1ecdc m\u00e1y kh\u00f4ng gi\u00e1m s\u00e1t<\/span><\/h3>\n<p> V\u1edbi unsupervise learning bao g\u1ed3m vi\u1ec7c h\u1ecdc nh\u1eefng d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 d\u1eef nh\u00e3n hay c\u00f2n g\u1ecdi l\u00e0 labels target. N\u00f3 th\u01b0\u1eddng nh\u1eb1m m\u1ee5c ti\u00eau l\u00e0 visulize data ho\u1eb7c l\u00e0m gi\u1ea3m nhi\u1ec5u d\u1eef li\u1ec7u,&#8230;H\u1ecdc m\u00e1y kh\u00f4ng gi\u00e1m s\u00e1t ch\u1ee7 y\u00eauts ddeer ph\u00e2n t\u00edch d\u1eef li\u1ec7u v\u00e0 th\u01b0\u1eddng l\u00e0 buowcs c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u d\u1eef li\u1ec7u h\u01a1n tr\u01b0\u1edbc khi gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ee7a h\u1ecdc m\u00e1y gi\u00e1m s\u00e1t. Gi\u1ea3m chi\u1ec1u ho\u1eb7c ph\u00e2n c\u1ee5m \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 c\u00e1c gi\u1ea3i thu\u1eadt trong h\u1ecdc m\u00e1y kh\u00f4ng gi\u00e1m s\u00e1t <\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3><span id=\"Tu_hoc_co_giam_sat\"> T\u1ef1 h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t <\/span><\/h3>\n<p> self-supervised learning l\u00e0 m\u1ed9t d\u1ea1ng h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t m\u00e0 kh\u00f4ng v\u1edbi s\u1ef1 g\u00e1n nh\u00e3n c\u1ee7a con ng\u01b0\u1eddi. C\u00f3 ngh\u0129a l\u00e0 d\u1eef li\u1ec7u v\u1eabn c\u00f3 nh\u00e3n nh\u01b0ng n\u00f3 \u0111\u01b0\u1ee3c sinh ra t\u1ef1 \u0111\u1ed9ng b\u1edfi d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o. Autoencoders \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 m\u1ed9t d\u1ea1ng t\u1ef1 h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t n\u01a1i m\u00e0 c\u00e1c nh\u00e3n l\u00e0 d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o, kh\u00f4ng ch\u1ec9nh s\u1eeda<\/p> \n\n\n\n<p><\/p>\n\n\n\n<h3><span id=\"Hoc_cung_co\"> H\u1ecdc c\u1ee7ng c\u1ed1 <\/span><\/h3>\n<p> T\u1eeb l\u00e2u b\u1ecb b\u1ecf qua, nh\u01b0ng nh\u00e1nh h\u1ecdc n\u00e0y g\u1ea7n \u0111\u00e2y \u0111\u01b0\u1ee3c ch\u00fa \u00fd khi Google DeepMind \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng n\u00f3 v\u00e0o vi\u1ec7c h\u1ecdc ch\u01a1i tr\u00f2 ch\u01a1 c\u1edd v\u00e2y. Trong h\u1ecdc c\u1ee7ng c\u1ed1, m\u1ed9t t\u00e1c nh\u00e2n nh\u1eadn m\u1ed9t th\u00f4ng tin v\u1ec1 m\u00f4i tr\u01b0\u1eddng c\u1ee7a n\u00f3 v\u00e0 h\u1ecdc c\u00e1ch ch\u1ecdn c\u00e1c h\u00e0nh \u0111\u1ed9ng s\u1ebd t\u1ed1i \u0111a ho\u00e1 ph\u1ea7n th\u01b0\u1edfng. V\u00ed d\u1ee5, M\u1ed9t m\u1ea1ng neural nh\u00e0n v\u00e0o m\u00e0n h\u00ecnh tr\u00f2 ch\u01a1 \u0111i\u1ec7n t\u1eeb v\u00e0 xu\u1ea5t ra c\u00e1c h\u00e0nh \u0111\u1ed9ng trong tr\u00f2 ch\u01a1i \u0111\u1ec3 t\u1ed1i \u0111a ho\u00e1 \u0111i\u1ec3m s\u1ed1 c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o th\u00f4ng qua h\u1ecdc c\u1ee7ng c\u1ed1. Hi\u1ec7n t\u1ea1i, h\u1ecdc c\u1ee7ng c\u1ed1 l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u kh\u00e1 m\u1edbi v\u00e0 ch\u01b0a c\u00f3 nh\u1eefng th\u00e0nh c\u00f4ng th\u1ef1c t\u1ebf \u0111\u00e1ng k\u1ec3 ngo\u00e0i tr\u00f2 ch\u01a1i. Tuy nhi\u00ean, theo th\u1eddi gian, ch\u00fang ta mong \u0111\u1ee3i r\u1eb1ng vi\u1ec7c h\u1ecdc t\u1eadp c\u1ee7ng c\u1ed1 s\u1ebd \u1ee9ng d\u1ee5ng r\u1ed9ng l\u1edbn trong c\u00e1c l\u0129nh v\u1ef1c l\u1edbn tr\u00ean th\u1ebf gi\u1edbi nh\u01b0: \u00f4 t\u00f4 t\u1ef1 l\u00e1i, ng\u01b0\u1eddi m\u00e1y, qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean, gi\u00e1o d\u1ee5c &#8230;. <\/p>\n\n\n\n<I> B\u00e0i bi\u1ebft h\u00f4m nay m\u00ecnh s\u1ebd t\u1ea1m d\u1eebng \u1edf \u0111\u00e2y, v\u1edbi vi\u1ec7c kh\u00e1i qu\u00e1t v\u1ec1 c\u00e1c d\u1ea1ng gi\u1ea3i thu\u1eadt trong h\u1ecdc m\u00e1y<\/I> \n<I> B\u00e0i vi\u1ebft d\u1ef1a tr\u00ean Ch\u01b0\u01a1ng 4 cu\u1ed1n s\u00e1ch Deep learning v\u1edbi Python<\/I>\n","protected":false},"excerpt":{"rendered":"<p>Trong chu\u1ed7i b\u00e0i vi\u1ebft v\u1ec1 Deep learning, b\u00e0i \u0111\u1ea7u ti\u00ean n\u00e0y m\u00ecnh s\u1ebd kh\u00e1i qu\u00e1t v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":870,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[250,233],"tags":[249,247,239],"class_list":["post-868","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-deep-learning","category-tri-tue-nhan-tao","tag-deep-learning","tag-hoc-khong-giam-sat","tag-hoc-may"],"_links":{"self":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/comments?post=868"}],"version-history":[{"count":1,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/868\/revisions"}],"predecessor-version":[{"id":871,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/868\/revisions\/871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media\/870"}],"wp:attachment":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media?parent=868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/categories?post=868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/tags?post=868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}