{"id":777,"date":"2020-10-23T16:35:52","date_gmt":"2020-10-23T15:35:52","guid":{"rendered":"http:\/\/cafe2sach.com\/?p=777"},"modified":"2021-04-29T12:40:48","modified_gmt":"2021-04-29T11:40:48","slug":"lam-sao-de-xay-dung-mot-model-gan-1d-bang-keras","status":"publish","type":"post","link":"https:\/\/cafe2sach.com\/index.php\/2020\/10\/23\/lam-sao-de-xay-dung-mot-model-gan-1d-bang-keras\/","title":{"rendered":"L\u00e0m sao \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t model GAN 1D b\u1eb1ng Keras"},"content":{"rendered":"\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=\"#Dinh_nghi_GAN_model\"><span class=\"toc_number toc_depth_1\">1<\/span>  \u0110\u1ecbnh ngh\u0129 GAN model <\/a><\/li><li><a href=\"#Cau_truc_GAN_model\"><span class=\"toc_number toc_depth_1\">2<\/span> C\u1ea5u tr\u00fac GAN model <\/a><ul><li><a href=\"#Dinh_nghia_bo_sinh\"><span class=\"toc_number toc_depth_2\">2.1<\/span> \u0110\u1ecbnh ngh\u0129a b\u1ed9 sinh<\/a><\/li><li><a href=\"#Dao_tao_bo_sinh\"><span class=\"toc_number toc_depth_2\">2.2<\/span> \u0110\u00e0o t\u1ea1o b\u1ed9 sinh<\/a><\/li><li><a href=\"#Danh_gia_hieu_qua_cua_GAN\"><span class=\"toc_number toc_depth_2\">2.3<\/span> \u0110\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ee7a GAN<\/a><\/li><li><a href=\"#Hoan_thanh_vi_du_cua_dao_tao_GAN\"><span class=\"toc_number toc_depth_2\">2.4<\/span> Ho\u00e0n th\u00e0nh v\u00ed d\u1ee5 c\u1ee7a \u0111\u00e0o t\u1ea1o GAN<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h1><span id=\"Dinh_nghi_GAN_model\"> \u0110\u1ecbnh ngh\u0129 GAN model <\/span><\/h1> \n<p>GAN vi\u1ebft t\u1eaft c\u1ee7a Genneative Adversarial Networks l\u00e0 m\u1ed9t ki\u1ebfn tr\u00fac h\u1ecdc s\u00e2u cho qu\u00e1 tr\u00ecnh \u0111\u00e0o t\u1ea1o models sinh, model l\u00e0 m\u1ed9t h\u00ecnh.N\u00f3i t\u00f3m l\u1ea1i Gan l\u00e0 m\u00f4 h\u00ecnh c\u00f3 th\u1ec3  kh\u1ea3 n\u0103ng t\u1ea1o ra nh\u1eefng m\u1eabu m\u1edbi h\u1ee3p l\u00ed, \u0111\u00e1ng tin c\u1eady c\u00f3 th\u1ec3 c\u00f3 t\u1eeb m\u1eabu c\u00f3 s\u1eb5n. <\/p>\n\n\n\n<h1><span id=\"Cau_truc_GAN_model\">C\u1ea5u tr\u00fac GAN model <\/span><\/h1>\n\n\n\n<p>GANs g\u1ed3m c\u00f3 2 ph\u1ea7n l\u00e0 b\u1ed9 sinh(generator) v\u00e0 b\u1ed9 ph\u00e2n bi\u1ec7t(discriminator). B\u1ed9 sinh c\u00f3 kh\u1ea3 n\u0103ng cho sinh ra nh\u1eefng m\u1eabu m\u1edbi t\u1eeb mi\u1ec1n x\u00e1c \u0111\u1ecbnh, B\u1ed9 ph\u00e2n bi\u1ec7t \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u00e2u l\u00e0 th\u1eadt v\u00e0 \u0111\u00e2u v\u00e0 gi\u1ea3. \u0110i\u1ec1u nh\u1ea5n m\u1ea1nh \u1edf \u0111\u00e2y l\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 sinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1eadp nh\u1eadt c\u00e1c tham s\u1ed1 c\u1ee7a ch\u00ednh b\u1ed9 ph\u00e2n bi\u1ec7t v\u00e0 b\u1ed9 sinh. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 s\u1ef1 sinh s\u1ebd kh\u00f4ng bao gi\u1edd nh\u00ecn th\u1ea5y nh\u1eefng m\u1eabu t\u1eeb mi\u1ec1n x\u00e1c \u0111\u1ecbnh v\u00e0 n\u00f3 th\u00edch nghi s\u1ef1 tr\u00ean hi\u1ec7u qu\u1ea3 l\u00e0m vi\u1ec7c t\u1ed1t c\u1ee7a b\u1ed9 ph\u00e2n bi\u1ec7t. \u0110\u00e2y ch\u00ednh l\u00e0 s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a c\u1ea3 2 b\u1ed9 \u0111\u1ec3 hi\u1ec3u v\u00e0 training. <\/p>\n\n\n\n<p>M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn \u0111\u1ec3 hi\u1ec3u h\u01a1n m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean v\u1ec1 models GAN v\u00e0 hi\u1ec3u n\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o l\u00e0 ph\u00e1t tri\u1ec3n model t\u1eeb nh\u1eefng th\u1ee9 b\u01b0\u1edbc \u0111\u01a1n gi\u1ea3n nh\u1ea5t. <\/p>\n\n\n\n<p>M\u1ed9t vi\u1ec7c \u0111\u01a1n gi\u1ea3n c\u00e1i m\u00e0 cung c\u1ea5p n\u1ed9i dung t\u1ed1t cho vi\u1ec7c ph\u00e1t tri\u1ec3n model GAN l\u00e0 t\u1eeb d\u1eef li\u1ec7u m\u1ed9t chi\u1ec1u. \u0110i\u1ec1u n\u00e0y l\u00e0 b\u1edfi v\u00ec c\u1ea3 m\u1eabu th\u1ef1c v\u00e0 m\u1eabu sinh ra c\u00f3 \u0111\u01b0\u1ee3c v\u1ebd v\u00e0 nh\u00ecn th\u1ea5y r\u00f5 l\u1ea5y \u00fd t\u01b0\u1edfng v\u1ec1 c\u00e1i n\u00e0o \u0111\u00e3 \u0111\u01b0\u1ee3c h\u1ecdc. M\u1ed9t h\u00e0m \u0111\u01a1n gi\u1ea3n m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ee9c t\u1ea1p cho c\u00e1c model m\u1ea1ng neural. \u0110i\u1ec1u n\u00e0y ngh\u0129a l\u00e0 c\u1ee5 th\u1ec3 b\u1ed9 sinh v\u00e0 b\u1ed9 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ki\u1ebfn tr\u00fac c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ec3 hi\u1ec3u. <\/p>\n\n\n\n<p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, ch\u00fang ta s\u1ebd ch\u1ecdn m\u1ed9t h\u00e0m m\u1ed9t chi\u1ec1u \u0111\u01a1n gi\u1ea3n v\u00e0 s\u1eed d\u1ee5ng n\u00f3 gi\u1ed1ng nh\u01b0 c\u01a1 b\u1ea3n cho ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u00e1nh gi\u00e1 GAN t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c th\u01b0 vi\u1ec7n Keras<\/p>\n\n\n\n<p>Sau khi ho\u00e0n th\u00e0nh h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd bi\u1ebft: <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>L\u1ee3i th\u1ebf c\u1ee7a vi\u1ec7c ph\u00e1t tri\u1ec3n GAN t\u1eeb ban \u0111\u1ea7u cho h\u00e0m m\u1ed9t chi\u1ec1u <\/li><li>C\u00e1ch \u0111\u1ec3 ph\u00e1t tri\u1ec3n b\u1ed9 sinh v\u00e0 b\u1ed9 ph\u00e2n bi\u1ec7t m\u1ed9t c\u00e1ch ri\u00eang bi\u1ec7t, gi\u1ed1ng nh\u01b0 l\u00e0 gh\u00e9p model cho vi\u1ec7c \u0111\u00e0o t\u1ea1o sinh th\u00f4ng qua d\u1ef1 \u0111o\u00e1n c\u1ee7a model ph\u00e2n bi\u1ec7t.<\/li><li>C\u00e1ch \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1eabu \u0111\u01b0\u1ee3c sinh ra trong n\u1ed9i dung c\u1ee7a v\u00ed d\u1ee5 th\u1ef1c t\u1eeb v\u1ea5n \u0111\u1ec1 x\u00e1c \u0111\u1ecbnh.<\/li><\/ul>\n\n\n\n<p>T\u1ed5ng quan:<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u01b0\u1ee3c chia th\u00e0nh 6 ph\u1ea7n nh\u01b0 sau:\u0110\u1ecbnh ngh\u0129a b\u1ed9 ph\u00e2n bi\u1ec7t<\/p>\n\n\n\n<h2><span id=\"Dinh_nghia_bo_sinh\">\u0110\u1ecbnh ngh\u0129a b\u1ed9 sinh<\/span><\/h2>\n\n\n\n<h2><span id=\"Dao_tao_bo_sinh\">\u0110\u00e0o t\u1ea1o b\u1ed9 sinh<\/span><\/h2>\n\n\n\n<h2><span id=\"Danh_gia_hieu_qua_cua_GAN\">\u0110\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ee7a GAN<\/span><\/h2>\n\n\n\n<h2><span id=\"Hoan_thanh_vi_du_cua_dao_tao_GAN\">Ho\u00e0n th\u00e0nh v\u00ed d\u1ee5 c\u1ee7a \u0111\u00e0o t\u1ea1o GAN<\/span><\/h2>\n\n\n\n<p><em>SELECT A ONE-DIMENSIONAL FUNCTION<\/em><\/p>\n\n\n\n<p>B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 ch\u1ecdn h\u00e0m m\u1ed9t chi\u1ec1u \u0111\u1ec3 s\u1eed d\u1ee5ng model<\/p>\n\n\n\n<p>M\u1ed9t c\u1ea5u tr\u00fac c\u1ee7a h\u00e0m c\u00f3 d\u1ea1ng: y = f(x) <\/p>\n\n\n\n<p>N\u01a1i m\u00e0 x l\u00e0 gi\u00e1 tr\u1ecb \u0111\u1ea7u v\u00e0o v\u00e0 y l\u00e0 gi\u00e1 tr\u1ecb \u0111\u1ea7u ra c\u1ee7a h\u00e0m. Chi ti\u1ebft h\u01a1n, ch\u00fang ta mu\u1ed1n h\u00e0m c\u00e1i m\u00e0 c\u00f3 d\u1ec5 d\u00e0ng hi\u1ec3u v\u00e0 v\u1ebd. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap c\u00e0 \u0111\u1eb7t m\u1ed9t mong \u0111\u1ee3i c\u1ee7a c\u00e1i m\u00e0 model n\u00ean \u0111\u01b0\u1ee3c sinh v\u00e0 trong s\u1eed d\u1ee5ng xem x\u00e9t c\u1ee7a nh\u1eefng m\u1eabu sinh \u0111\u1ec3 l\u1ea5y \u00fd t\u01b0\u1edfng \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a n\u00f3. Ch\u00fang ta s\u1eed d\u1ee5ng m\u1ed9t h\u00e0m \u0111\u01a1n gi\u1ea3n c\u1ee7a x^2; \u0111i\u1ec1u n\u00e0y l\u00e0, h\u00e0m s\u1ebd tr\u1ea3 v\u1ec1 b\u00ecnh ph\u01b0\u01a1ng c\u1ee7a \u0111\u1ea7u v\u00e0o. <em>C<\/em><\/p>\n\n\n\n<p><em>&lt;continued&gt;<\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong><br><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ed9i dung ch&iacute;nh1 \u0110\u1ecbnh ngh\u0129 GAN model 2 C\u1ea5u tr\u00fac GAN model 2.1 \u0110\u1ecbnh ngh\u0129a b\u1ed9 sinh2.2 \u0110\u00e0o t\u1ea1o b\u1ed9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":788,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,234,233],"tags":[235,236],"class_list":["post-777","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","category-gan","category-tri-tue-nhan-tao","tag-gan","tag-tri-tue-nhan-tao"],"_links":{"self":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/777","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=777"}],"version-history":[{"count":5,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/777\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/posts\/777\/revisions\/1051"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media\/788"}],"wp:attachment":[{"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/media?parent=777"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/categories?post=777"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cafe2sach.com\/index.php\/wp-json\/wp\/v2\/tags?post=777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}