{"id":995,"date":"2019-01-07T09:21:37","date_gmt":"2019-01-07T09:21:37","guid":{"rendered":"https:\/\/www.thegioimaychu.vn\/blog\/?p=995"},"modified":"2019-01-07T23:24:44","modified_gmt":"2019-01-07T23:24:44","slug":"loi-tuc-tren-von-dau-tu-roi-cua-giai-phap-xu-ly-tren-gpu","status":"publish","type":"post","link":"https:\/\/thegioimaychu.vn\/blog\/tong-hop\/loi-tuc-tren-von-dau-tu-roi-cua-giai-phap-xu-ly-tren-gpu-p995\/","title":{"rendered":"L\u1ee3i t\u1ee9c tr\u00ean v\u1ed1n \u0111\u1ea7u t\u01b0 (ROI) c\u1ee7a gi\u1ea3i ph\u00e1p x\u1eed l\u00fd tr\u00ean GPU"},"content":{"rendered":"<style>.iblink{color:#975!important;}.iblink:hover{color:orange!important;}<\/style><p>S\u1ee9c m\u1ea1nh ti\u1ec1m n\u0103ng c\u1ee7a <a class=\"iblink\" href=\"\/blog\/tag\/ai\/\">tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o<\/a> (AI) \u0111ang thu h\u00fat s\u1ef1 ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c gi\u00e1 tr\u1ecb ch\u01b0a \u0111\u01b0\u1ee3c khai th\u00e1c n\u1eb1m trong s\u1ed1 l\u01b0\u1ee3ng d\u1eef li\u1ec7u to l\u1edbn m\u00e0 c\u00e1c t\u1ed5 ch\u1ee9c \u0111\u00e3 t\u00edch l\u0169y trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y. Tuy nhi\u00ean, vi\u1ec7c x\u1eed l\u00fd s\u1ed1 l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u nh\u01b0 v\u1eady trong l\u1ecbch s\u1eed \u0111\u00f2i h\u1ecfi kh\u00f4ng ch\u1ec9 r\u1ea5t nhi\u1ec1u s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n m\u00e0 c\u00f2n c\u1ea7n r\u1ea5t nhi\u1ec1u th\u1eddi gian, th\u1ee9 m\u00e0 c\u00e1c c\u00f4ng ty, t\u1ed5 ch\u1ee9c \u0111ang mu\u1ed1n r\u00fat ng\u1eafn khi h\u1ecd t\u00ecm ki\u1ebfm l\u1ee3i th\u1ebf c\u1ea1nh tranh. Tuy nhi\u00ean, v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 t\u0103ng t\u1ed1c x\u1eed l\u00fd \u0111\u1ed3 h\u1ecda (Graphic Processing Unit, GPU), ng\u00e0nh c\u00f4ng ngh\u1ec7 th\u00f4ng tin (CNTT) c\u00f3 m\u1ed9t s\u1ef1 thay th\u1ebf m\u1edbi, hi\u1ec7u su\u1ea5t cao h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p>Tr\u01b0\u1edbc \u0111\u00e2y, nhi\u1ec1u d\u1ef1 \u00e1n c\u00f3 s\u1eed d\u1ee5ng l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u th\u01b0\u1eddng d\u1ef1a v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng chuy\u00ean s\u00e2u qua CPU \u0111\u1ec3 tr\u00edch xu\u1ea5t gi\u00e1 tr\u1ecb h\u1eefu d\u1ee5ng t\u1eeb d\u1eef li\u1ec7u. Qua nhi\u1ec1u n\u0103m, c\u00e1c nh\u00e0 cung c\u1ea5p ph\u1ea7n c\u1ee9ng m\u00e1y t\u00ednh t\u1eadp trung v\u00e0o vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 CPU (\u0111\u1ec3 t\u00ednh to\u00e1n nhi\u1ec1u h\u01a1n trong th\u1eddi gian ng\u1eafn h\u01a1n). \u0110i\u1ec1u n\u00e0y t\u1ea1o ra nh\u1eefng b\u1ea5t c\u1eadp, trong \u0111\u00f3 bao g\u1ed3m vi\u1ec7c s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng nhi\u1ec1u h\u01a1n v\u00e0 sinh nhi\u1ec7t l\u1edbn h\u01a1n.<\/p>\n<p>S\u1eed d\u1ee5ng gi\u1ea3i ph\u00e1p \u0111i\u1ec7n to\u00e1n \u0111\u01b0\u1ee3c t\u0103ng t\u1ed1c d\u1ef1a tr\u00ean GPU, s\u1eed d\u1ee5ng GPU k\u1ebft h\u1ee3p v\u1edbi CPU, cho ph\u00e9p GPU x\u1eed l\u00fd c\u00e0ng nhi\u1ec1u m\u00e3 \u1ee9ng d\u1ee5ng x\u1eed l\u00fd song song c\u00e0ng t\u1ed1t, gi\u00fap c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u hi\u1ec3u r\u00f5 h\u01a1n v\u00e0 t\u1ea1o ra d\u1eef li\u1ec7u h\u1eefu d\u1ee5ng nhanh h\u01a1n, ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n bao gi\u1edd h\u1ebft. \u0110i\u1ec1u n\u00e0y l\u00e0 v\u00ec m\u1ed9t GPU duy nh\u1ea5t c\u00f3 th\u1ec3 cung c\u1ea5p hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi h\u00e0ng tr\u0103m CPU cho c\u00e1c workload nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<p>GPU nh\u1eadn c\u00e1c l\u1ec7nh ti\u1ebfp c\u1eadn \u0111i\u1ec7n to\u00e1n song song c\u00f3 \u0111\u1ed9 l\u1edbn v\u01b0\u1ee3t qu\u00e1 CPU, cung c\u1ea5p h\u00e0ng ng\u00e0n l\u00f5i t\u00ednh to\u00e1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 t\u0103ng t\u1ed1c m\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m l\u00ean g\u1ea5p 100 l\u1ea7n so v\u1edbi CPU. Th\u00eam v\u00e0o \u0111\u00f3, GPU \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng t\u0103ng t\u1ed1c n\u00e0y trong khi n\u00f3 l\u1ea1i ti\u1ebft ki\u1ec7m \u0111i\u1ec7n n\u0103ng v\u00e0 chi ph\u00ed h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi CPU.<\/p>\n<p>M\u1ed9t s\u1ed1 lo\u1ea1i process c\u00f3 b\u1ea3n ch\u1ea5t x\u1eed l\u00fd tu\u1ea7n t\u1ef1 v\u1ed1n c\u00f3 v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi CPU. Tuy nhi\u00ean, r\u1ea5t nhi\u1ec1u process \u1ee9ng d\u1ee5ng kh\u00e1c l\u1ea1i th\u00edch h\u1ee3p v\u1edbi x\u1eed l\u00fd song song c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb t\u00e0i nguy\u00ean GPU. V\u00ec l\u00fd do \u0111\u00f3, vi\u1ec7c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p CPU v\u00e0 GPU s\u1ebd t\u1eadn d\u1ee5ng l\u1ee3i th\u1ebf c\u1ee7a c\u1ea3 hai c\u00f4ng ngh\u1ec7, khai th\u00e1c kh\u1ea3 n\u0103ng x\u1eed l\u00fd tu\u1ea7n t\u1ef1 c\u1ee7a th\u1ebf h\u1ec7 CPU m\u1edbi nh\u1ea5t v\u1edbi kh\u1ea3 n\u0103ng x\u1eed l\u00fd theo c\u1ea5p s\u1ed1 nh\u00e2n c\u1ee7a c\u00e1c GPU hi\u1ec7u n\u0103ng h\u00e0ng \u0111\u1ea7u.<\/p>\n<p>V\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u01a1n v\u1ecb thi\u1ebft k\u1ebf cho h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n c\u00f3 kinh nghi\u1ec7m v\u1edbi vi\u1ec7c x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean c\u1ea3 CPU v\u00e0 GPU v\u00e0 c\u00e1c <a class=\"iblink\" href=\"\/storage\/\">h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef<\/a> li\u00ean quan c\u1ea7n thi\u1ebft cho c\u1ea5p \u0111\u1ed9 ph\u00e2n t\u00edch d\u1eef li\u1ec7u n\u00e0y, k\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c chuy\u1ec3n sang chi\u1ebfn l\u01b0\u1ee3c t\u0103ng t\u1ed1c b\u1eb1ng GPU l\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i tr\u00ean m\u1ecdi ch\u1ec9 s\u1ed1, th\u1eddi gian t\u00ednh to\u00e1n nhanh h\u01a1n v\u00e0 gi\u1ea3m y\u00eau c\u1ea7u ph\u1ea7n c\u1ee9ng.<\/p>\n<blockquote><p>B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c <a href=\"https:\/\/thegioimaychu.vn\/giai-phap\/deep-learning\/?utm_source=tmblog\">h\u1ec7 th\u1ed1ng x\u1eed l\u00fd d\u1ef1a tr\u00ean GPU<\/a> do NTC cung c\u1ea5p, \u0111\u1ec3 th\u1ea5y r\u1eb1ng, c\u00e1c gi\u1ea3i ph\u00e1p GPU hi\u1ec7n nay \u0111\u00e3 r\u1ea5t ph\u1ed5 bi\u1ebfn v\u00e0 ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u nh\u00e0 cung c\u1ea5p h\u01a1n.<\/p><\/blockquote>\n<p>\u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 cho k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c, m\u00e0 ch\u00fang c\u00f2n t\u1ea1o ra l\u1ee3i t\u1ee9c \u0111\u1ea7u t\u01b0 (ROI) k\u00e9o d\u00e0i trong t\u01b0\u01a1ng lai. NVIDIA, nh\u00e0 ph\u00e1t tri\u1ec3n GPU h\u00e0ng \u0111\u1ea7u, d\u1ef1 \u0111o\u00e1n r\u1eb1ng GPU s\u1ebd gi\u00fap t\u0103ng t\u1ed1c 1000 l\u1ea7n hi\u1ec7u n\u0103ng t\u00ednh to\u00e1n v\u00e0o n\u0103m 2025. S\u1ef1 gia t\u0103ng ph\u1ee5 thu\u1ed9c v\u00e0o GPU kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi n\u00e0y c\u00f3 ngh\u0129a l\u00e0 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng s\u1edbm s\u1ebd kh\u00f4ng ch\u1ec9 c\u00f3 s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n l\u1edbn h\u01a1n theo th\u1eddi gian m\u00e0 c\u00f2n c\u00f3 bi\u00ean \u0111\u1ed9 ch\u00eanh l\u1ec7ch l\u1edbn h\u01a1n theo th\u1eddi gian so v\u1edbi c\u00e1c \u0111\u1ed1i th\u1ee7 kh\u00f4ng chuy\u1ec3n sang m\u00f4 h\u00ecnh \u0111i\u1ec7n to\u00e1n h\u1ed7 tr\u1ee3 b\u1edfi GPU.<\/p>\n<p>Gi\u1ea3i ph\u00e1p \u0111i\u1ec7n to\u00e1n d\u1ef1a v\u00e0o GPU ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c nhu c\u1ea7u ph\u00e2n t\u00edch d\u1eef li\u1ec7u dung kh\u1ed1i l\u1edbn, v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng AI, v\u1ed1n c\u1ea7n r\u1ea5t nhi\u1ec1u s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n. Tr\u00ean h\u1ebft, s\u1ef1 c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c trong c\u00f4ng ngh\u1ec7 GPU c\u1ee7a NVIDIA v\u00e0 c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c v\u00e0 khai th\u00e1c c\u00e1c kho d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 hi\u1ec7n c\u00f3 \u0111\u1ec3 c\u1ea3i thi\u1ec7n thu\u1eadt to\u00e1n s\u1ebd cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c \u0111\u00e3 quen thu\u1ed9c v\u1edbi \u0111i\u1ec7n to\u00e1n t\u0103ng t\u1ed1c GPU chuy\u1ec3n sang AI m\u1ed9t c\u00e1ch tr\u01a1n tru h\u01a1n.<\/p>\n<p>Hi\u1ec7u su\u1ea5t gia t\u0103ng c\u1ee7a \u0111i\u1ec7n to\u00e1n d\u1ef1a v\u00e0o GPU c\u0169ng c\u00f3 th\u1ec3 s\u1ebd d\u1eabn \u0111\u01b0\u1eddng cho \u0111i\u1ec7n to\u00e1n c\u1ea1nh bi\u00ean (edge computing). V\u1edbi vi\u1ec7c c\u00e1c giao th\u1ee9c m\u1ea1ng th\u1ebf h\u1ec7 m\u1edbi s\u1eafp ra \u0111\u1eddi cho ph\u00e9p m\u1ed9t th\u1ebf gi\u1edbi \u0111i\u1ec7n to\u00e1n suy lu\u1eadn t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p \u1edf v\u00f9ng r\u00eca, c\u00e1c n\u1ec1n t\u1ea3ng m\u1ea1nh nh\u1ea5t v\u00e0 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 nh\u1ea5t s\u1ebd \u0111\u01b0\u1ee3c ch\u1ecdn cho c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y\u00a0m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean.<\/p>\n<p>Gi\u00e1 tr\u1ecb li\u00ean quan \u0111\u1ebfn AI n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c t\u00ecm ki\u1ebfm m\u1ed9t \u0111\u01a1n v\u1ecb thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u00f3 kinh nghi\u1ec7m trong c\u1ea3 m\u1ea3ng GPU v\u00e0 AI, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c. Tuy nhi\u00ean, m\u1ed9t khi b\u1ea1n quy\u1ebft \u0111\u1ecbnh tri\u1ec3n khai v\u00e0 c\u00f3 m\u1ed9t h\u1ec7 th\u1ed1ng AI c\u00e2n b\u1eb1ng, t\u1eadn d\u1ee5ng t\u1ed1i \u0111a kh\u1ea3 n\u0103ng c\u1ee7a GPU, l\u1ee3i nhu\u1eadn t\u1eeb c\u00f4ng ngh\u1ec7 ti\u1ec1m n\u0103ng n\u00e0y s\u1ebd c\u00f2n m\u1ea1nh m\u1ebd h\u01a1n n\u1eefa.<\/p>\n<p>T\u1ea1i NTC &#8211; Th\u1ebf Gi\u1edbi M\u00e1y Ch\u1ee7, ch\u00fang t\u00f4i \u0111\u00e3 l\u1eadp ra b\u1ed9 ph\u1eadn Gi\u1ea3i ph\u00e1p H\u1ec7 th\u1ed1ng v\u1edbi c\u00e1c chuy\u00ean vi\u00ean c\u00f3 nhi\u1ec1u n\u0103m kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c ph\u1ea7n c\u1ee9ng, IT. \u0110\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e3 gi\u00fap nhi\u1ec1u kh\u00e1ch h\u00e0ng x\u00e2y d\u1ef1ng c\u00e1c gi\u1ea3i ph\u00e1p GPU hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t.<\/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=23415\">B\u01b0\u1edbc v\u00e0o k\u1ef7 nguy\u00ean tr\u1ee3 l\u00fd AI c\u00e1 nh\u00e2n &#8211; so s\u00e1nh chi ti\u1ebft NVIDIA RTX Spark v\u00e0 DGX Spark<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=23322\">NVIDIA RTX PRO 4500 Blackwell Server Edition: B\u01b0\u1edbc nh\u1ea3y v\u1ecdt t\u1eeb th\u1ebf h\u1ec7 L4 cho h\u1ea1 t\u1ea7ng AI suy lu\u1eadn hi\u1ec7u n\u0103ng cao<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=23119\">NVIDIA NGC\u2011ready Low\u2011latency Edge AI: Gi\u1ea3i ph\u00e1p cho Retail, Manufacturing v\u00e0 Smart Cities<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=23110\">So s\u00e1nh s\u1ee9c m\u1ea1nh c\u1ee7a m\u00e1y t\u00ednh AI DGX Spark v\u1edbi c\u00e1c card GPU m\u00e1y tr\u1ea1m chuy\u00ean nghi\u1ec7p c\u1ee7a NVIDIA<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=22969\">T\u1eeb Orin \u0111\u1ebfn Thor: B\u01b0\u1edbc nh\u1ea3y v\u1ecdt ki\u1ebfn tr\u00fac c\u1ee7a NVIDIA JetPack 7.0 v\u00e0 t\u01b0\u01a1ng lai c\u1ee7a robot h\u00ecnh ng\u01b0\u1eddi<\/a><\/li>\n<li><a href=\"https:\/\/thegioimaychu.vn\/blog\/?post_type=post&#038;p=22887\">T\u1ea1i sao g\u1ecdi NVIDIA DGX Spark l\u00e0 Si\u00eau m\u00e1y t\u00ednh AI c\u00e1 nh\u00e2n?<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>S&#7913;c m&#7841;nh ti&#7873;m n&#259;ng c&#7911;a tr&iacute; tu&#7879; nh&acirc;n t&#7841;o (AI) &#273;ang thu h&uacute;t s&#7921; ch&uacute; &yacute; &#273;&#7871;n c&aacute;c gi&aacute; tr&#7883; ch&#432;a &#273;&#432;&#7907;c khai th&aacute;c n&#7857;m trong s&#7889; l&#432;&#7907;ng d&#7919; li&#7879;u to l&#7899;n m&agrave; c&aacute;c t&#7893; ch&#7913;c &#273;&atilde; t&iacute;ch l&#361;y trong nh&#7919;ng n&#259;m g&#7847;n &#273;&acirc;y. Tuy nhi&ecirc;n, vi&#7879;c x&#7917; l&yacute; s&#7889; l&#432;&#7907;ng l&#7899;n d&#7919; li&#7879;u nh&#432;&#8230;<\/p>\n","protected":false},"author":2,"featured_media":997,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[3,1],"tags":[671,1314],"class_list":["post-995","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-hpc","category-tong-hop","tag-gpu","tag-nvidia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L\u1ee3i t\u1ee9c tr\u00ean v\u1ed1n \u0111\u1ea7u t\u01b0 (ROI) c\u1ee7a gi\u1ea3i ph\u00e1p x\u1eed l\u00fd tr\u00ean GPU - 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\/tong-hop\/loi-tuc-tren-von-dau-tu-roi-cua-giai-phap-xu-ly-tren-gpu-p995\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"L\u1ee3i t\u1ee9c tr\u00ean v\u1ed1n \u0111\u1ea7u t\u01b0 (ROI) c\u1ee7a gi\u1ea3i ph\u00e1p x\u1eed l\u00fd tr\u00ean GPU - Blog | TheGioiMayChu\" \/>\n<meta name=\"twitter:description\" content=\"S&#7913;c m&#7841;nh ti&#7873;m n&#259;ng c&#7911;a tr&iacute; tu&#7879; nh&acirc;n t&#7841;o (AI) &#273;ang thu h&uacute;t s&#7921; ch&uacute; &yacute; &#273;&#7871;n c&aacute;c gi&aacute; tr&#7883; ch&#432;a &#273;&#432;&#7907;c khai th&aacute;c n&#7857;m trong s&#7889; l&#432;&#7907;ng d&#7919; li&#7879;u to l&#7899;n m&agrave; c&aacute;c t&#7893; ch&#7913;c &#273;&atilde; t&iacute;ch l&#361;y trong nh&#7919;ng n&#259;m g&#7847;n &#273;&acirc;y. 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