{"id":479453,"date":"2023-08-09T10:40:25","date_gmt":"2023-08-09T10:40:25","guid":{"rendered":""},"modified":"2023-09-05T11:18:50","modified_gmt":"2023-09-05T11:18:50","slug":"unsupervised-learning","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/unsupervised-learning\/","title":{"rendered":"H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t"},"content":{"rendered":"

H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t nh\u00e1nh n\u1ed5i b\u1eadt c\u1ee7a h\u1ecdc m\u00e1y t\u1eadp trung v\u00e0o c\u00e1c thu\u1eadt to\u00e1n hu\u1ea5n luy\u1ec7n \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c m\u1eabu v\u00e0 c\u1ea5u tr\u00fac trong d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 gi\u00e1m s\u00e1t r\u00f5 r\u00e0ng ho\u1eb7c c\u00e1c v\u00ed d\u1ee5 \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n. Kh\u00f4ng gi\u1ed1ng nh\u01b0 h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t, trong \u0111\u00f3 thu\u1eadt to\u00e1n h\u1ecdc t\u1eeb d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n, h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t x\u1eed l\u00fd d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n, cho ph\u00e9p thu\u1eadt to\u00e1n t\u00ecm th\u1ea5y c\u00e1c c\u1ea5u tr\u00fac v\u00e0 m\u1ed1i quan h\u1ec7 c\u01a1 b\u1ea3n m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. Quy\u1ec1n t\u1ef1 ch\u1ee7 n\u00e0y l\u00e0m cho vi\u1ec7c h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, bao g\u1ed3m ph\u00e2n t\u00edch d\u1eef li\u1ec7u, nh\u1eadn d\u1ea1ng m\u1eabu v\u00e0 ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng.<\/p>\n

L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n

Ngu\u1ed3n g\u1ed1c c\u1ee7a h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u nghi\u00ean c\u1ee9u v\u1ec1 tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 h\u1ecdc m\u00e1y. Trong khi h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t \u0111\u01b0\u1ee3c ch\u00fa \u00fd v\u00e0o nh\u1eefng n\u0103m 1950 v\u00e0 1960, kh\u00e1i ni\u1ec7m h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1970. V\u00e0o th\u1eddi \u0111i\u1ec3m \u0111\u00f3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 t\u00ecm c\u00e1ch cho ph\u00e9p m\u00e1y h\u1ecdc t\u1eeb d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n nh\u00e3n r\u00f5 r\u00e0ng, m\u1edf \u0111\u01b0\u1eddng cho s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n

C\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t nh\u1eb1m m\u1ee5c \u0111\u00edch kh\u00e1m ph\u00e1 c\u1ea5u tr\u00fac v\u1ed1n c\u00f3 trong d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1eabu, c\u1ee5m v\u00e0 m\u1ed1i quan h\u1ec7. M\u1ee5c ti\u00eau ch\u00ednh l\u00e0 tr\u00edch xu\u1ea5t th\u00f4ng tin c\u00f3 \u00fd ngh\u0129a m\u00e0 kh\u00f4ng c\u1ea7n bi\u1ebft tr\u01b0\u1edbc v\u1ec1 c\u00e1c l\u1edbp ho\u1eb7c danh m\u1ee5c c\u1ee7a d\u1eef li\u1ec7u. \u0110i\u1ec1u \u0111\u00e1ng n\u00f3i l\u00e0 h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 ti\u1ec1n th\u00e2n cho c\u00e1c nhi\u1ec7m v\u1ee5 h\u1ecdc m\u00e1y kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ecdc b\u00e1n gi\u00e1m s\u00e1t ho\u1eb7c h\u1ecdc t\u0103ng c\u01b0\u1eddng.<\/p>\n

C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

C\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nhi\u1ec1u k\u1ef9 thu\u1eadt kh\u00e1c nhau \u0111\u1ec3 nh\u00f3m c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1 l\u1ea1i v\u1edbi nhau v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1eabu c\u01a1 b\u1ea3n. Hai ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t l\u00e0 ph\u00e2n c\u1ee5m v\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc.<\/p>\n

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  1. \n

    Ph\u00e2n c\u1ee5m: Thu\u1eadt to\u00e1n ph\u00e2n c\u1ee5m nh\u00f3m c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1 th\u00e0nh c\u00e1c c\u1ee5m d\u1ef1a tr\u00ean \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng ho\u1eb7c kho\u1ea3ng c\u00e1ch c\u1ee7a ch\u00fang trong kh\u00f4ng gian \u0111\u1eb7c tr\u01b0ng. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n c\u1ee5m ph\u1ed5 bi\u1ebfn bao g\u1ed3m ph\u01b0\u01a1ng ti\u1ec7n k, ph\u00e2n c\u1ee5m theo c\u1ea5p b\u1eadc v\u00e0 ph\u00e2n c\u1ee5m d\u1ef1a tr\u00ean m\u1eadt \u0111\u1ed9.<\/p>\n<\/li>\n

  2. \n

    Gi\u1ea3m k\u00edch th\u01b0\u1edbc: K\u1ef9 thu\u1eadt gi\u1ea3m k\u00edch th\u01b0\u1edbc nh\u1eb1m m\u1ee5c \u0111\u00edch gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng t\u00ednh n\u0103ng trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c th\u00f4ng tin c\u1ea7n thi\u1ebft trong d\u1eef li\u1ec7u. Ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n ch\u00ednh (PCA) v\u00e0 nh\u00fang h\u00e0ng x\u00f3m ng\u1eabu nhi\u00ean ph\u00e2n ph\u1ed1i t (t-SNE) l\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3m k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n<\/li>\n<\/ol>\n

    Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t<\/h2>\n

    H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t th\u1ec3 hi\u1ec7n m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 kh\u00e1c bi\u1ec7t v\u1edbi c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc m\u00e1y kh\u00e1c:<\/p>\n

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    1. \n

      Kh\u00f4ng c\u1ea7n nh\u00e3n:<\/strong> H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t kh\u00f4ng d\u1ef1a v\u00e0o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n khan hi\u1ebfm ho\u1eb7c t\u1ed1n k\u00e9m \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n

    2. \n

      Kh\u00e1m ph\u00e1 trong t\u1ef1 nhi\u00ean:<\/strong> C\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t cho ph\u00e9p kh\u00e1m ph\u00e1 c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n c\u1ee7a d\u1eef li\u1ec7u, cho ph\u00e9p kh\u00e1m ph\u00e1 c\u00e1c m\u1eabu v\u00e0 m\u1ed1i quan h\u1ec7 \u1ea9n.<\/p>\n<\/li>\n

    3. \n

      Ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng:<\/strong> B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 nh\u00e3n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc, vi\u1ec7c h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m b\u1ea5t th\u01b0\u1eddng ho\u1eb7c c\u00e1c ngo\u1ea1i l\u1ec7 c\u00f3 th\u1ec3 kh\u00f4ng tu\u00e2n theo c\u00e1c m\u1eabu \u0111i\u1ec3n h\u00ecnh.<\/p>\n<\/li>\n

    4. \n

      H\u1ed7 tr\u1ee3 ti\u1ec1n x\u1eed l\u00fd:<\/strong> H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u01b0\u1edbc ti\u1ec1n x\u1eed l\u00fd, cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a d\u1eef li\u1ec7u tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc kh\u00e1c.<\/p>\n<\/li>\n<\/ol>\n

      C\u00e1c lo\u1ea1i h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t<\/h2>\n

      H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t bao g\u1ed3m nhi\u1ec1u k\u1ef9 thu\u1eadt kh\u00e1c nhau ph\u1ee5c v\u1ee5 c\u00e1c m\u1ee5c \u0111\u00edch ri\u00eang bi\u1ec7t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n\n\n\n\n\n\n
      Ki\u1ec3u<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
      Ph\u00e2n c\u1ee5m<\/strong><\/td>\nNh\u00f3m c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u th\u00e0nh c\u00e1c c\u1ee5m d\u1ef1a tr\u00ean s\u1ef1 gi\u1ed1ng nhau c\u1ee7a ch\u00fang.<\/td>\n<\/tr>\n
      Gi\u1ea3m k\u00edch th\u01b0\u1edbc<\/strong><\/td>\nGi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng t\u00ednh n\u0103ng trong khi v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c th\u00f4ng tin c\u1ea7n thi\u1ebft trong d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n
      M\u00f4 h\u00ecnh s\u00e1ng t\u1ea1o<\/strong><\/td>\nL\u1eadp m\u00f4 h\u00ecnh ph\u00e2n ph\u1ed1i c\u01a1 b\u1ea3n c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ec3 t\u1ea1o m\u1eabu m\u1edbi.<\/td>\n<\/tr>\n
      Khai th\u00e1c quy t\u1eafc hi\u1ec7p h\u1ed9i<\/strong><\/td>\nKh\u00e1m ph\u00e1 m\u1ed1i quan h\u1ec7 th\u00fa v\u1ecb gi\u1eefa c\u00e1c bi\u1ebfn trong b\u1ed9 d\u1eef li\u1ec7u l\u1edbn.<\/td>\n<\/tr>\n
      B\u1ed9 m\u00e3 h\u00f3a t\u1ef1 \u0111\u1ed9ng<\/strong><\/td>\nK\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean m\u1ea1ng th\u1ea7n kinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 h\u1ecdc bi\u1ec3u di\u1ec5n v\u00e0 n\u00e9n d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      C\u00e1ch s\u1eed d\u1ee5ng H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n

      H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau v\u00e0 gi\u1ea3i quy\u1ebft m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c:<\/p>\n

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      1. \n

        Ph\u00e2n kh\u00fac kh\u00e1ch h\u00e0ng:<\/strong> Trong ti\u1ebfp th\u1ecb v\u00e0 ph\u00e2n t\u00edch kh\u00e1ch h\u00e0ng, h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 nh\u00f3m kh\u00e1ch h\u00e0ng th\u00e0nh c\u00e1c ph\u00e2n kh\u00fac d\u1ef1a tr\u00ean h\u00e0nh vi, s\u1edf th\u00edch ho\u1eb7c nh\u00e2n kh\u1ea9u h\u1ecdc c\u1ee7a h\u1ecd, cho ph\u00e9p doanh nghi\u1ec7p \u0111i\u1ec1u ch\u1ec9nh chi\u1ebfn l\u01b0\u1ee3c c\u1ee7a m\u00ecnh cho t\u1eebng ph\u00e2n kh\u00fac.<\/p>\n<\/li>\n

      2. \n

        Ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng:<\/strong> Trong an ninh m\u1ea1ng v\u00e0 ph\u00e1t hi\u1ec7n gian l\u1eadn, h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c m\u00f4 h\u00ecnh b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 ch\u1ec9 ra c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n ho\u1eb7c h\u00e0nh vi gian l\u1eadn.<\/p>\n<\/li>\n

      3. \n

        Ph\u00e2n c\u1ee5m h\u00ecnh \u1ea3nh v\u00e0 v\u0103n b\u1ea3n:<\/strong> H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n c\u1ee5m c\u00e1c h\u00ecnh \u1ea3nh ho\u1eb7c v\u0103n b\u1ea3n t\u01b0\u01a1ng t\u1ef1, h\u1ed7 tr\u1ee3 t\u1ed5 ch\u1ee9c v\u00e0 truy xu\u1ea5t n\u1ed9i dung.<\/p>\n<\/li>\n

      4. \n

        Ti\u1ec1n x\u1eed l\u00fd d\u1eef li\u1ec7u:<\/strong> C\u00e1c k\u1ef9 thu\u1eadt h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd tr\u01b0\u1edbc d\u1eef li\u1ec7u tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n h\u1ecdc c\u00f3 gi\u00e1m s\u00e1t, gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a m\u00f4 h\u00ecnh.<\/p>\n<\/li>\n<\/ol>\n

        C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n

        H\u00e3y ph\u00e2n bi\u1ec7t h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t v\u1edbi c\u00e1c thu\u1eadt ng\u1eef h\u1ecdc m\u00e1y c\u00f3 li\u00ean quan kh\u00e1c:<\/p>\n\n\n\n\n\n\n\n
        Thu\u1eadt ng\u1eef<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
        H\u1ecdc t\u1eadp c\u00f3 gi\u00e1m s\u00e1t<\/strong><\/td>\nH\u1ecdc t\u1eeb d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n, trong \u0111\u00f3 thu\u1eadt to\u00e1n \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u1eb7p \u0111\u1ea7u v\u00e0o-\u0111\u1ea7u ra.<\/td>\n<\/tr>\n
        H\u1ecdc b\u00e1n gi\u00e1m s\u00e1t<\/strong><\/td>\nS\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa h\u1ecdc t\u1eadp c\u00f3 gi\u00e1m s\u00e1t v\u00e0 kh\u00f4ng gi\u00e1m s\u00e1t, trong \u0111\u00f3 c\u00e1c m\u00f4 h\u00ecnh s\u1eed d\u1ee5ng c\u1ea3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n.<\/td>\n<\/tr>\n
        H\u1ecdc t\u0103ng c\u01b0\u1eddng<\/strong><\/td>\nH\u1ecdc t\u1eadp th\u00f4ng qua t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng, nh\u1eb1m t\u1ed1i \u0111a h\u00f3a ph\u1ea7n th\u01b0\u1edfng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t<\/h2>\n

        T\u01b0\u01a1ng lai c\u1ee7a vi\u1ec7c h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng th\u00fa v\u1ecb. Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, ch\u00fang ta c\u00f3 th\u1ec3 mong \u0111\u1ee3i nh\u1eefng ph\u00e1t tri\u1ec3n sau:<\/p>\n

          \n
        1. \n

          Thu\u1eadt to\u00e1n c\u1ea3i ti\u1ebfn:<\/strong> C\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t ph\u1ee9c t\u1ea1p h\u01a1n s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p v\u00e0 c\u00f3 chi\u1ec1u cao.<\/p>\n<\/li>\n

        2. \n

          Nh\u1eefng ti\u1ebfn b\u1ed9 v\u1ec1 h\u1ecdc t\u1eadp s\u00e2u:<\/strong> H\u1ecdc s\u00e2u, m\u1ed9t t\u1eadp h\u1ee3p con c\u1ee7a h\u1ecdc m\u00e1y, s\u1ebd ti\u1ebfp t\u1ee5c n\u00e2ng cao hi\u1ec7u su\u1ea5t h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t, cho ph\u00e9p tr\u00ecnh b\u00e0y v\u00e0 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a t\u00ednh n\u0103ng t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n

        3. \n

          Si\u00eau h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t:<\/strong> Nghi\u00ean c\u1ee9u v\u1ec1 si\u00eau h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t nh\u1eb1m m\u1ee5c \u0111\u00edch cho ph\u00e9p c\u00e1c m\u00f4 h\u00ecnh h\u1ecdc c\u00e1ch h\u1ecdc t\u1eeb d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n

          C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi H\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t<\/h2>\n

          M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc m\u00e1y kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t. H\u1ecd cung c\u1ea5p nh\u1eefng l\u1ee3i \u00edch sau:<\/p>\n

            \n
          1. \n

            Thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 quy\u1ec1n ri\u00eang t\u01b0:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u1ea9n danh d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng, \u0111\u1ea3m b\u1ea3o quy\u1ec1n ri\u00eang t\u01b0 trong khi thu th\u1eadp d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n cho c\u00e1c t\u00e1c v\u1ee5 h\u1ecdc t\u1eadp kh\u00f4ng \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t.<\/p>\n<\/li>\n

          2. \n

            C\u00e2n b\u1eb1ng t\u1ea3i:<\/strong> M\u00e1y ch\u1ee7 proxy gi\u00fap ph\u00e2n ph\u1ed1i kh\u1ed1i l\u01b0\u1ee3ng c\u00f4ng vi\u1ec7c t\u00ednh to\u00e1n trong c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t quy m\u00f4 l\u1edbn, n\u00e2ng cao hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n

          3. \n

            L\u1ecdc n\u1ed9i dung:<\/strong> M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 l\u1ecdc v\u00e0 x\u1eed l\u00fd tr\u01b0\u1edbc d\u1eef li\u1ec7u tr\u01b0\u1edbc khi ti\u1ebfp c\u1eadn c\u00e1c thu\u1eadt to\u00e1n h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t, t\u1ed1i \u01b0u h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<\/ol>\n

            Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

            \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

              \n
            1. Hi\u1ec3u v\u1ec1 h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t \u2013 H\u01b0\u1edbng t\u1edbi khoa h\u1ecdc d\u1eef li\u1ec7u<\/a><\/li>\n
            2. H\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t \u2013 Wikipedia<\/a><\/li>\n
            3. Gi\u1edbi thi\u1ec7u v\u1ec1 ph\u00e2n c\u1ee5m v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n c\u1ee5m kh\u00e1c nhau \u2013 Medium<\/a><\/li>\n<\/ol>\n

              T\u00f3m l\u1ea1i, h\u1ecdc kh\u00f4ng gi\u00e1m s\u00e1t \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c kh\u00e1m ph\u00e1 ki\u1ebfn th\u1ee9c m\u1ed9t c\u00e1ch t\u1ef1 ch\u1ee7, cho ph\u00e9p m\u00e1y m\u00f3c kh\u00e1m ph\u00e1 d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n h\u01b0\u1edbng d\u1eabn r\u00f5 r\u00e0ng. V\u1edbi nhi\u1ec1u lo\u1ea1i h\u00ecnh, \u1ee9ng d\u1ee5ng kh\u00e1c nhau v\u00e0 t\u01b0\u01a1ng lai \u0111\u1ea7y h\u1ee9a h\u1eb9n, h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t ti\u1ebfp t\u1ee5c l\u00e0 n\u1ec1n t\u1ea3ng trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o v\u00e0 h\u1ecdc m\u00e1y. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n v\u00e0 d\u1eef li\u1ec7u tr\u1edf n\u00ean phong ph\u00fa h\u01a1n, s\u1ee9c m\u1ea1nh t\u1ed5ng h\u1ee3p gi\u1eefa h\u1ecdc t\u1eadp kh\u00f4ng gi\u00e1m s\u00e1t v\u00e0 m\u00e1y ch\u1ee7 proxy ch\u1eafc ch\u1eafn s\u1ebd th\u00fac \u0111\u1ea9y c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ed5i m\u1edbi trong c\u00e1c ng\u00e0nh v\u00e0 l\u0129nh v\u1ef1c.<\/p>","protected":false},"featured_media":470777,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479453","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Unsupervised Learning: Understanding the Foundations of Autonomous Knowledge Discovery<\/mark>","faq_items":[{"question":"What is unsupervised learning?","answer":"

              Unsupervised learning is a branch of machine learning where algorithms analyze unlabeled data to discover patterns, clusters, and relationships autonomously. Unlike supervised learning, it doesn't require labeled examples, making it ideal for exploring data without prior knowledge of classes or categories.<\/p>"},{"question":"How did unsupervised learning originate?","answer":"

              The concept of unsupervised learning was first mentioned in the early 1970s during the early days of artificial intelligence and machine learning research. Researchers sought ways to enable machines to learn from data without explicit labels, leading to the emergence of unsupervised learning algorithms.<\/p>"},{"question":"How does unsupervised learning work?","answer":"

              Unsupervised learning utilizes techniques like clustering and dimensionality reduction. Clustering groups similar data points into clusters based on their similarities, while dimensionality reduction reduces the number of features while retaining essential information in the data.<\/p>"},{"question":"What are the key features of unsupervised learning?","answer":"

              The main features of unsupervised learning are its independence from labeled data, its exploratory nature to discover hidden patterns, its capability for anomaly detection, and its usefulness as a preprocessing step before applying other learning methods.<\/p>"},{"question":"What types of unsupervised learning exist?","answer":"

              Several types of unsupervised learning techniques include clustering, dimensionality reduction, generative models, association rule mining, and autoencoders.<\/p>"},{"question":"How is unsupervised learning used, and what problems does it solve?","answer":"

              Unsupervised learning finds applications in customer segmentation, anomaly detection, image, and text clustering, and data preprocessing. It solves challenges related to scarce labeled data, content organization, and anomaly identification.<\/p>"},{"question":"How does unsupervised learning compare with other machine learning terms?","answer":"

              Unsupervised learning differs from supervised learning, where data requires labels, and semi-supervised learning, which combines labeled and unlabeled data. It also stands apart from reinforcement learning, which involves learning from interactions with an environment to maximize rewards.<\/p>"},{"question":"What are the future perspectives of unsupervised learning?","answer":"

              The future of unsupervised learning involves improved algorithms, advancements in deep learning, and research in unsupervised meta-learning for more effective learning from unlabeled data.<\/p>"},{"question":"How are proxy servers associated with unsupervised learning?","answer":"

              Proxy servers play a vital role in unsupervised learning by aiding in data collection, privacy, load balancing, and content filtering, leading to more efficient and secure applications.<\/p>"},{"question":"Where can I find more information about unsupervised learning?","answer":"

              For more insights into unsupervised learning, you can explore resources like \"Understanding Unsupervised Learning - Towards Data Science,\" \"Unsupervised Learning - Wikipedia,\" and \"An Introduction to Clustering and Different Methods of Clustering - Medium.\"<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/470777"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}