{"id":14774,"date":"2024-03-19T14:48:23","date_gmt":"2024-03-19T07:48:23","guid":{"rendered":"https:\/\/vinatom.gov.vn\/?p=14774"},"modified":"2024-03-19T15:06:50","modified_gmt":"2024-03-19T08:06:50","slug":"nghien-cuu-ap-dung-mang-no-ron-nhan-tao-de-du-doan-mot-so-dac-trung-vat-ly-cua-lo-phan-ung-mo-dun-nho-loai-nuoc-ap-luc","status":"publish","type":"post","link":"https:\/\/vinatom.gov.vn\/nghien-cuu-ap-dung-mang-no-ron-nhan-tao-de-du-doan-mot-so-dac-trung-vat-ly-cua-lo-phan-ung-mo-dun-nho-loai-nuoc-ap-luc\/","title":{"rendered":"Nghi\u00ean c\u1ee9u \u00e1p d\u1ee5ng m\u1ea1ng n\u01a1 ron nh\u00e2n t\u1ea1o \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n m\u1ed9t s\u1ed1 \u0111\u1eb7c tr\u01b0ng v\u1eadt l\u00fd c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng m\u00f4 \u0111un nh\u1ecf lo\u1ea1i n\u01b0\u1edbc \u00e1p l\u1ef1c"},"content":{"rendered":"

Trong th\u1eadp k\u1ef7 qua, c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc m\u00e1y t\u00ednh v\u00e0 d\u1eef li\u1ec7u l\u1edbn, h\u1ecdc m\u00e1y (ML) \u0111\u00e3 c\u00f3 s\u1ef1 ph\u00e1t tri\u1ec3n v\u01b0\u1ee3t b\u1eadc v\u00e0 \u0111\u00e3 th\u00e2m nh\u1eadp v\u00e0o h\u1ea7u h\u1ebft m\u1ecdi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi nh\u01b0 h\u1ed7 tr\u1ee3 nghi\u00ean c\u1ee9u khoa h\u1ecdc, xe t\u1ef1 l\u00e1i, tr\u1ee3 l\u00fd \u1ea3o, nh\u1eadn d\u1ea1ng h\u00ecnh \u1ea3nh, v.v. \u0110\u1ed1i v\u1edbi nghi\u00ean c\u1ee9u l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n, ML c\u0169ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ea5t nhi\u1ec1u \u0111\u1ec3 thay th\u1ebf c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 ph\u1ecfng trong vi\u1ec7c d\u1ef1 \u0111o\u00e1n c\u00e1c th\u00f4ng s\u1ed1 c\u1ea7n thi\u1ebft trong l\u00f2 ph\u1ea3n \u1ee9ng nh\u01b0 c\u00e1c th\u00f4ng s\u1ed1 \u0111\u1ed9ng h\u1ecdc, ph\u00e2n b\u1ed1 c\u00f4ng su\u1ea5t, nhi\u1ec7t-th\u1ee7y l\u1ef1c. L\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111a v\u1eadt l\u00fd v\u1edbi h\u00ecnh h\u1ecdc ph\u1ee9c t\u1ea1p, do \u0111\u00f3 vi\u1ec7c m\u00f4 ph\u1ecfng v\u00e0 t\u00ednh to\u00e1n c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ph\u1ee9c t\u1ea1p, t\u00ednh to\u00e1n chuy\u00ean s\u00e2u v\u00e0 t\u1ed1n th\u1eddi gian. Trong khi \u0111\u00f3, c\u00e1c nghi\u00ean c\u1ee9u \u1ee9ng d\u1ee5ng ML, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ea1ng n\u01a1 ron nh\u00e2n t\u1ea1o (ANN) cho th\u1ea5y ti\u1ec1m n\u0103ng l\u1edbn trong vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c c\u00f4ng c\u1ee5 m\u00f4 ph\u1ecfng ch\u00ednh x\u00e1c hi\u1ec7u su\u1ea5t cao cho c\u00e1c l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n v\u1edbi thu\u1eadt to\u00e1n \u0111\u01a1n gi\u1ea3n, \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c v\u00e0 t\u1ed1c \u0111\u1ed9 t\u00ednh to\u00e1n t\u0103ng l\u00ean r\u1ea5t nhi\u1ec1u. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi nh\u1eefng b\u00e0i to\u00e1n c\u1ee5 th\u1ec3, m\u00f4 h\u00ecnh ML v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u, c\u1ea3i ti\u1ebfn \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00f9 h\u1ee3p. Ngo\u00e0i ra, c\u00e1c m\u00f4 h\u00ecnh ANN y\u00eau c\u1ea7u l\u01b0\u1ee3ng d\u1eef li\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn \u0111\u1ec3 hu\u1ea5n luy\u1ec7n. V\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c thu\u1eadt to\u00e1n c\u00f3 t\u00ednh kh\u00e1i qu\u00e1t cao tr\u00ean t\u1eadp d\u1eef li\u1ec7u h\u1ea1n ch\u1ebf (\u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m) c\u0169ng l\u00e0 m\u1ed9t b\u00e0i to\u00e1n \u0111\u1ea7y th\u00e1ch th\u1ee9c hi\u1ec7n nay.<\/p>\n

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\u201cNghi\u00ean c\u1ee9u \u00e1p d\u1ee5ng m\u1ea1ng n\u01a1 ron nh\u00e2n t\u1ea1o \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n m\u1ed9t s\u1ed1 \u0111\u1eb7c tr\u01b0ng v\u1eadt l\u00fd c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng m\u00f4 \u0111un nh\u1ecf lo\u1ea1i n\u01b0\u1edbc \u00e1p l\u1ef1c\u201d l\u00e0 \u0111\u1ec1 t\u00e0i c\u1ea5p C\u01a1 s\u1edf \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n n\u0103m 2023 t\u1ea1i Vi\u1ec7n Khoa h\u1ecdc v\u00e0 K\u1ef9 thu\u1eadt h\u1ea1t nh\u00e2n. Nghi\u00ean c\u1ee9u n\u00e0y \u00e1p d\u1ee5ng m\u1ea1ng n\u01a1 ron nhi\u1ec1u l\u1edbp (MLP) \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n h\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng m\u00f4 \u0111un nh\u1ecf lo\u1ea1i n\u01b0\u1edbc \u00e1p l\u1ef1c c\u00f3 c\u00f4ng su\u1ea5t danh \u0111\u1ecbnh 200 MW. V\u1edbi v\u00f9ng ho\u1ea1t l\u00f2 ph\u1ea3n \u1ee9ng ch\u1ee9a 37 b\u00f3 nhi\u00ean li\u1ec7u PWR, m\u1ed7i b\u00f3 nhi\u00ean li\u1ec7u bao g\u1ed3m 264 thanh nhi\u00ean li\u1ec7u, 24 \u1ed1ng d\u1eabn h\u01b0\u1edbng thanh \u0111i\u1ec1u khi\u1ec3n v\u00e0 1 \u1ed1ng d\u1ee5ng c\u1ee5 trung t\u00e2m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed tr\u00ean l\u01b0\u1edbi 17×17. C\u00e1c vi\u00ean nhi\u00ean li\u1ec7u l\u00e0m t\u1eeb UO2 v\u1edbi ba m\u1ee9c l\u00e0m gi\u00e0u U-235 kh\u00e1c nhau (2,35%, 3,40% v\u00e0 4,45%) \u0111\u01b0\u1ee3c n\u1ea1p v\u00e0o ba lo\u1ea1i t\u1ed5 h\u1ee3p c\u00f3 t\u00ean l\u1ea7n l\u01b0\u1ee3t l\u00e0 F235, F340 v\u00e0 F445.<\/p>\n

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T\u1eadp d\u1eef li\u1ec7u d\u00f9ng \u0111\u1ec3 hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi ch\u01b0\u01a1ng tr\u00ecnh SRAC2006. Nh\u00f3m nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng 20 000 c\u1ea5u h\u00ecnh thay \u0111\u1ea3o nhi\u00ean li\u1ec7u, trong m\u1ed9t c\u1ea5u h\u00ecnh thay \u0111\u1ea3o t\u00ednh theo g\u00f3c \u00bc g\u1ed3m c\u00f3 302 tham s\u1ed1 v\u1edbi 300 tham s\u1ed1 \u0111\u1ea7u v\u00e0o bao g\u1ed3m v\u1ecb tr\u00ed b\u00f3 nhi\u00ean li\u1ec7u, \u0111\u1ed9 gi\u00e0u nhi\u00ean li\u1ec7u, ti\u1ebft di\u1ec7n sinh n\u01a1 tron ph\u00e2n h\u1ea1ch, ti\u1ebft di\u1ec7n ph\u00e2n h\u1ea1ch, ti\u1ebft di\u1ec7n b\u1eaft n\u01a1 tron, ti\u1ebft di\u1ec7n h\u1ea5p th\u1ee5, h\u1ec7 s\u1ed1 khu\u1ebfch t\u00e1n, ti\u1ebft di\u1ec7n t\u1ed5ng c\u1ed9ng, ti\u1ebft di\u1ec7n k\u00edch ho\u1ea1t, ti\u1ebft di\u1ec7n t\u00e1n x\u1ea1, h\u1ec7 s\u1ed1 nh\u00e2n v\u00f4 h\u1ea1n c\u1ee7a b\u00f3 nhi\u00ean li\u1ec7u v\u00e0 2 tham s\u1ed1 l\u00e0 h\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t d\u00f9ng \u0111\u1ec3 so s\u00e1nh khi hu\u1ea5n luy\u1ec7n m\u00f4 h\u00ecnh ANN nh\u1eb1m x\u00e1c \u0111\u1ecbnh b\u1ed9 gi\u00e1 tr\u1ecb tr\u1ecdng s\u1ed1 v\u00e0 \u0111\u1ed9 l\u1ec7ch t\u1ed1t nh\u1ea5t. Trong nghi\u00ean c\u1ee9u n\u00e0y, nh\u00f3m nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng 15 200 c\u1ea5u h\u00ecnh \u0111\u1ec3 hu\u1ea5n luy\u1ec7n cho h\u1ecdc m\u00e1y; 3800 c\u1ea5u h\u00ecnh \u0111\u1ec3 x\u00e1c th\u1ef1c l\u1ea1i b\u1ed9 tr\u1ecdng s\u1ed1 v\u00e0 \u0111\u1ed9 l\u1ec7ch; v\u00e0 1000 c\u1ea5u h\u00ecnh \u0111\u1ec3 ki\u1ec3m tra k\u1ebft qu\u1ea3 d\u1ef1 \u0111o\u00e1n c\u1ee7a m\u1ea1ng ANN.<\/p>\n

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MLP l\u00e0 m\u1ed9t lo\u1ea1i m\u1ea1ng ANN bao g\u1ed3m m\u1ed9t l\u1edbp \u0111\u1ea7u v\u00e0o, m\u1ed9t ho\u1eb7c nhi\u1ec1u l\u1edbp \u1ea9n v\u00e0 m\u1ed9t l\u1edbp \u0111\u1ea7u ra. M\u1ed7i l\u1edbp \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi c\u00e1c n\u00fat c\u1ee7a n\u00f3, trong \u0111\u00f3 m\u1ed7i n\u00fat th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n c\u00f3 tr\u1ecdng s\u1ed1 tr\u00ean c\u00e1c t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb l\u1edbp tr\u01b0\u1edbc (H\u00ecnh 1). MLP l\u00e0 m\u1ea1ng th\u1ea7n kinh chuy\u1ec3n ti\u1ebfp, ngh\u0129a l\u00e0 th\u00f4ng tin ch\u1ea3y theo m\u1ed9t h\u01b0\u1edbng, t\u1eeb l\u1edbp \u0111\u1ea7u v\u00e0o qua c\u00e1c l\u1edbp \u1ea9n \u0111\u1ebfn l\u1edbp \u0111\u1ea7u ra v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau cho c\u00e1c nhi\u1ec7m v\u1ee5 nh\u01b0 ph\u00e2n lo\u1ea1i, h\u1ed3i quy v\u00e0 nh\u1eadn d\u1ea1ng m\u1eabu. C\u00e1c h\u00e0m k\u00edch ho\u1ea1t trong c\u00e1c n\u00fat n\u00e0y cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u phi tuy\u1ebfn t\u00ednh, cho ph\u00e9p MLP m\u00f4 h\u00ecnh h\u00f3a c\u00e1c m\u1ed1i quan h\u1ec7 ph\u1ee9c t\u1ea1p v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n c\u1ee7a b\u1ed9 ph\u00e2n lo\u1ea1i tuy\u1ebfn t\u00ednh. Vi\u1ec7c t\u00ednh to\u00e1n trong m\u1ed7i n\u00fat \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo hai b\u01b0\u1edbc. \u0110\u1ea7u ti\u00ean, d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p theo tr\u1ecdng s\u1ed1:<\/p>\n

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trong \u0111\u00f3 w_{i<\/sub> l\u00e0 h\u1ec7 s\u1ed1 tr\u1ecdng s\u1ed1, x_{i<\/sub> l\u00e0 t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 b l\u00e0 \u0111\u1ed9 l\u1ec7ch. Sau \u0111\u00f3, \u0111\u1ea7u ra \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb t\u1ed5ng tr\u00ean th\u00f4ng qua h\u00e0m k\u00edch ho\u1ea1t phi tuy\u1ebfn f(s) \u0111\u1ec3 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh nhi\u1ec1u l\u1edbp. C\u00f4ng th\u1ee9c sau \u0111\u00e2y bi\u1ec3u th\u1ecb h\u00e0m k\u00edch ho\u1ea1t sigmoid:<\/p>\n}}

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$\"\"$ H\u00ecnh 1: C\u1ea5u tr\u00fac m\u1ea1ng nh\u1eadn th\u1ee9c \u0111a l\u1edbp<\/p>\n
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T\u1eeb k\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t v\u00e0 kinh nghi\u1ec7m trong vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ed1 l\u1edbp \u1ea9n v\u00e0 s\u1ed1 n\u01a1 ron trong m\u1ed7i l\u1edbp \u1ea9n l\u00e0 b\u1ed9i s\u1ed1 c\u1ee7a 2 v\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed1i x\u1ee9ng, ngh\u0129a l\u00e0 s\u1ed1 n\u01a1 ron c\u1ee7a l\u1edbp \u0111\u1ea7u ti\u00ean v\u00e0 l\u1edbp cu\u1ed1i c\u00f9ng lu\u00f4n nh\u1ecf h\u01a1n s\u1ed1 n\u01a1 ron \u1edf c\u00e1c l\u1edbp \u1edf gi\u1eefa. Do \u0111\u00f3 nh\u00f3m nghi\u00ean c\u1ee9u l\u1ef1a ch\u1ecdn s\u1ed1 l\u1edbp \u1ea9n l\u00e0 4, s\u1ed1 n\u01a1-ron trong m\u1ed7i l\u1edbp l\u1ea7n l\u01b0\u1ee3t l\u00e0 256, 512, 512, 256 nh\u1eb1m \u0111\u1ea3m b\u1ea3o m\u1ea1ng ANN \u0111\u1ee7 l\u1edbn, c\u0169ng nh\u01b0 s\u1ed1 n\u01a1 ron trong m\u1ed7i l\u1edbp \u1ea9n kh\u00f4ng qu\u00e1 l\u1edbn \u0111\u1ec3 kh\u00f4ng b\u1ecb t\u1ed5n h\u1ea1i t\u00e0i nguy\u00ean t\u00ednh to\u00e1n v\u00e0 kh\u00f3 h\u1ed9i t\u1ee5. Trong ph\u1ea7n kh\u1ea3o s\u00e1t \u0111\u00e3 s\u1eed d\u1ee5ng to\u00e0n b\u1ed9 300 tham s\u1ed1 \u0111\u1ea7u v\u00e0o v\u00e0 2 tham s\u1ed1 (h\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t) v\u00e0 s\u1ed1 epoch l\u00e0 500.<\/p>\n
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K\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u1ea1ng ANN \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t v\u00e0 h\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng (k-eff). T\u1eeb h\u00ecnh 2 c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng, \u0111\u1ed9 l\u1ec7ch c\u1ee7a k-eff h\u1ea7u h\u1ebft n\u1eb1m trong kho\u1ea3ng t\u1eeb -50 pcm \u0111\u1ebfn 50 pcm v\u00e0 \u0111\u1ed9 l\u1ec7ch c\u1ee7a h\u1ec7 s\u1ed1 \u0111\u1ec9nh h\u1ea7u h\u1ebft n\u1eb1m trong kho\u1ea3ng -0,4 %. \u0111\u1ebfn 0,4 %. \u0110\u1ed9 l\u1ec7ch trung b\u00ecnh c\u1ee7a k-eff v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh l\u1ea7n l\u01b0\u1ee3t l\u00e0 0,024 pcm v\u00e0 0,135%, trong khi \u0111\u1ed9 l\u1ec7ch t\u1ed1i \u0111a c\u1ee7a ch\u00fang l\u00e0 268 pcm v\u00e0 1,764%. Nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y cho th\u1ea5y s\u1ef1 ph\u00f9 h\u1ee3p t\u1ed1t gi\u1eefa m\u00f4 h\u00ecnh MLP v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh SRAC2006 (h\u00ecnh 3). V\u00ec v\u1eady, c\u00f3 th\u1ec3 th\u1ea5y, khi c\u00f3 \u0111\u1ee7 d\u1eef li\u1ec7u \u0111\u1ec3 hu\u1ea5n luy\u1ec7n, m\u00f4 h\u00ecnh ANN c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n k-eff v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t c\u1ee7a l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 t\u1ed1n \u00edt t\u00e0i nguy\u00ean. Nh\u1eefng k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u n\u00eau tr\u00ean cho th\u1ea5y nhi\u1ec1u h\u1ee9a h\u1eb9n trong vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc m\u00e1y v\u00e0o nghi\u00ean c\u1ee9u, thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n.<\/p>\n
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<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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$\"\"$ H\u00ecnh 2. Ph\u00e2n ph\u1ed1i \u0111\u1ed9 l\u1ec7ch c\u1ee7a d\u1ef1 \u0111o\u00e1n k-eff\u00a0 v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t \u0111\u01b0\u1ee3c d\u1ef1 \u0111o\u00e1n b\u1edfi c\u00e1c m\u00f4 h\u00ecnh t\u1ed1t nh\u1ea5t<\/p>\n
<\/p>\n\n\n\n\n\n\n\n
C\u00e1c tham s\u1ed1<\/strong><\/td>\n H\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng, k-eff<\/strong><\/td>\n H\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t<\/strong><\/td>\n<\/tr>\n
H\u00e0m m\u1ea5t m\u00e1t c\u1ee7a m\u00f4 h\u00ecnh t\u1ed1t nh\u1ea5t<\/td>\n 1.01E-04<\/td>\n 8.15E-05<\/td>\n<\/tr>\n
H\u00e0m m\u1ea5t m\u00e1t x\u00e1c th\u1ef1c c\u1ee7a m\u00f4 h\u00ecnh t\u1ed1t nh\u1ea5t<\/td>\n 8.73E-06<\/td>\n 4.16E-06<\/td>\n<\/tr>\n
\u0110\u1ed9 l\u1ec7ch tuy\u1ec7t \u0111\u1ed1i trung b\u00ecnh (%)<\/td>\n 0.024<\/td>\n 0.135<\/td>\n<\/tr>\n
\u0110\u1ed9 l\u1ec7ch tuy\u1ec7t \u0111\u1ed1i t\u1ed1i \u0111a (%)<\/td>\n 0.268<\/td>\n 1.764<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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$\"\"$ H\u00ecnh 3. So s\u00e1nh h\u1ec7 s\u1ed1 nh\u00e2n hi\u1ec7u d\u1ee5ng v\u00e0 h\u1ec7 s\u1ed1 \u0111\u1ec9nh c\u00f4ng su\u1ea5t gi\u1eefa ANN v\u00e0 SRAC2006<\/p>\n
<\/p>\n
K\u1ebft qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ee7a \u0111\u1ec1 t\u00e0i nghi\u00ean c\u1ee9u m\u1edbi ch\u1ec9 l\u00e0 b\u01b0\u1edbc kh\u1edfi \u0111\u1ea7u v\u00e0 c\u00f2n t\u1ed3n t\u1ea1i nhi\u1ec1u v\u1ea5n \u0111\u1ec1 nh\u01b0 k\u1ebft qu\u1ea3 d\u1ef1 \u0111o\u00e1n t\u1eeb m\u1ea1ng ANN \u0111\u01b0\u1ee3c so s\u00e1nh ng\u01b0\u1ee3c l\u1ea1i v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh t\u1ea1o b\u1ed9 d\u1eef li\u1ec7u cho n\u00ean ch\u01b0a \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c t\u00ednh kh\u00e1ch quan c\u1ee7a k\u1ebft qu\u1ea3 d\u1ef1 \u0111o\u00e1n. Tuy nhi\u00ean, nghi\u00ean c\u1ee9u n\u00e0y ch\u1ec9 g\u00f3i g\u1ecdn trong khu\u00e2n kh\u1ed5 c\u1ee7a nhi\u1ec7m v\u1ee5 khoa h\u1ecdc v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ea5p c\u01a1 s\u1edf v\u1edbi m\u1ee5c \u0111\u00edch n\u00e2ng cao n\u00e2ng l\u1ef1c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 k\u1ef9 thu\u1eadt hi\u1ec7n \u0111\u1ea1i trong nghi\u00ean c\u1ee9u l\u00f2 ph\u1ea3n \u1ee9ng v\u00e0 nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau \u0111\u00e3 \u0111\u1ec1 ra.<\/p>\n
<\/p>\n
\u0110\u1ec3 duy tr\u00ec v\u00e0 ph\u00e1t tri\u1ec3n trong vi\u1ec7c \u1ee9ng d\u1ee5ng h\u1ecdc m\u00e1y v\u00e0o nghi\u00ean c\u1ee9u l\u00f2 ph\u1ea3n \u1ee9ng h\u1ea1t nh\u00e2n, nh\u00f3m nghi\u00ean c\u1ee9u mong ti\u1ebfp t\u1ee5c nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 quan t\u00e2m v\u00e0 \u1ee7ng h\u1ed9 c\u1ee7a l\u00e3nh \u0111\u1ea1o \u0111\u01a1n v\u1ecb v\u00e0 L\u00e3nh \u0111\u1ea1o Vi\u1ec7n NLNTVN. V\u1edbi nh\u1eefng hi\u1ec3u bi\u1ebft v\u00e0 k\u1ebft qu\u1ea3 c\u00f3 \u0111\u01b0\u1ee3c, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u1ec1 xu\u1ea5t \u1ee9ng d\u1ee5ng h\u1ecdc m\u00e1y \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n s\u1ef1 c\u1ed1 m\u1ea5t d\u00f2ng ch\u1ea5t t\u1ea3i nhi\u1ec7t (LOFA) v\u00e0 s\u1ef1 c\u1ed1 \u0111\u1ed9 ph\u1ea3n \u1ee9ng (RIA) v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 l\u00f2 ph\u1ea3n \u1ee9ng nghi\u00ean c\u1ee9u v\u1edbi c\u00f4ng su\u1ea5t 10 MW, nh\u1eb1m m\u1ee5c \u0111\u00edch ph\u1ee5c v\u1ee5 cho d\u1ef1 \u00e1n Trung t\u00e2m Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 h\u1ea1t nh\u00e2n \u2013 CNST trong th\u1eddi gian t\u1edbi.<\/p>\n
<\/p>\n
\u00a0<\/em><\/strong><\/p>\n
L\u00ea Tr\u1ea7n Chung \u2013 Vi\u1ec7n Khoa h\u1ecdc v\u00e0 K\u1ef9 thu\u1eadt h\u1ea1t nh\u00e2n<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
Trong th\u1eadp k\u1ef7 qua, c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc m\u00e1y t\u00ednh v\u00e0 d\u1eef li\u1ec7u l\u1edbn, h\u1ecdc m\u00e1y (ML) \u0111\u00e3 c\u00f3 s\u1ef1 ph\u00e1t tri\u1ec3n v\u01b0\u1ee3t b\u1eadc v\u00e0 \u0111\u00e3 th\u00e2m nh\u1eadp v\u00e0o h\u1ea7u h\u1ebft m\u1ecdi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi nh\u01b0 h\u1ed7 tr\u1ee3 nghi\u00ean c\u1ee9u khoa h\u1ecdc, xe t\u1ef1 l\u00e1i, tr\u1ee3 l\u00fd \u1ea3o, nh\u1eadn […]<\/p>\n","protected":false},"author":4,"featured_media":14785,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-14774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thong-tin-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/14774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/comments?post=14774"}],"version-history":[{"count":2,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/14774\/revisions"}],"predecessor-version":[{"id":14783,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/posts\/14774\/revisions\/14783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/media\/14785"}],"wp:attachment":[{"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/media?parent=14774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/categories?post=14774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vinatom.gov.vn\/wp-json\/wp\/v2\/tags?post=14774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}