{"id":34330,"date":"2023-12-08T03:58:16","date_gmt":"2023-12-08T03:58:16","guid":{"rendered":"https:\/\/masterskills.org\/blog\/ki-thuat-phan-to-clustering-techniques-la-gi-dac-trung-cua-ki-thuat-phan-to.html"},"modified":"2023-12-23T20:56:46","modified_gmt":"2023-12-23T13:56:46","slug":"ki-thuat-phan-to-clustering-techniques-la-gi-dac-trung-cua-ki-thuat-phan-to","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/ki-thuat-phan-to-clustering-techniques-la-gi-dac-trung-cua-ki-thuat-phan-to.html","title":{"rendered":"K\u0129 thu\u1eadt ph\u00e2n t\u1ed5 (Clustering techniques) l\u00e0 g\u00ec? \u0110\u1eb7c tr\u01b0ng c\u1ee7a k\u0129 thu\u1eadt ph\u00e2n t\u1ed5"},"content":{"rendered":"
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H\u00ecnh minh h\u1ecda<\/p>\n<\/div>\n<\/div>\n

K\u0129 thu\u1eadt ph\u00e2n t\u1ed5 (Clustering techniques)<\/font><\/h2>\n

\u0110\u1ecbnh ngh\u0129a<\/b><\/p>\n

K\u0129 thu\u1eadt ph\u00e2n t\u1ed5<\/b> trong ti\u1ebfng Anh l\u00e0 Clustering techniques<\/b>.\u00a0K\u0129 thu\u1eadt ph\u00e2n t\u1ed5<\/i> l\u00e0 vi\u1ec7c chia m\u1ed9t t\u1ed5ng th\u1ec3 l\u1edbn th\u00e0nh c\u00e1c t\u1ed5ng th\u1ec3 con (t\u1ed5ng th\u1ec3 th\u1ee9 c\u1ea5p), th\u00e0nh c\u00e1c ph\u1ea7n t\u1eed t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng nh\u1ea5t theo m\u1ed9t ti\u00eau th\u1ee9c n\u00e0o \u0111\u00f3.<\/p>\n

K\u0129 thu\u1eadt ph\u00e2n t\u1ed5 c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 k\u0129 thu\u1eadt ph\u00e2n nh\u00f3m.<\/p>\n

C\u00e1c thu\u1eadt ng\u1eef li\u00ean quan<\/font><\/h3>\n

T\u1ed5ng th\u1ec3 (Population) <\/b>trong ki\u1ec3m to\u00e1n l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n t\u1eed ho\u1eb7c \u0111\u01a1n v\u1ecb thu\u1ed9c \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u.<\/p>\n

Hay n\u00f3i c\u00e1ch kh\u00e1c t\u1ed5ng th\u1ec3 <\/i>l\u00e0 to\u00e0n b\u00f4 d\u1eef li\u1ec7u v\u1ec1 m\u1ed9t v\u1ea5n \u0111\u1ec1 g\u00ec \u0111\u00f3 m\u00e0 ki\u1ec3m to\u00e1n vi\u00ean mu\u1ed1n l\u1eadp m\u1eabu ki\u1ec3m to\u00e1n \u0111\u1ec3 r\u00fat ra c\u00e1c k\u1ebft lu\u1eadn.<\/p>\n

M\u1eabu ki\u1ec3m to\u00e1n<\/b> l\u00e0 m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u (m\u1eabu) \u0111\u01b0\u1ee3c l\u1ea5y ra t\u1eeb t\u1ed5ng th\u1ec3 (to\u00e0n b\u1ed9 d\u1eef li\u1ec7u) \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c ph\u00e9p th\u1eed c\u01a1 b\u1ea3n v\u00e0 tu\u00e2n th\u1ee7 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1, t\u1eeb k\u1ebft qu\u1ea3 c\u1ee7a m\u1eabu ki\u1ec3m to\u00e1n suy ra k\u1ebft qu\u1ea3 cho t\u1ed5ng th\u1ec3.<\/p>\n

M\u1eabu ki\u1ec3m to\u00e1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ee7 \u0111\u1ea1i di\u1ec7n cho c\u1ea3 t\u1ed5ng th\u1ec3 v\u00e0 c\u00f3 \u0111\u1ea7y \u0111\u1ee7 c\u00e1c ti\u00eau th\u1ee9c v\u00e0 \u0111\u1eb7c tr\u01b0ng c\u1ee7a t\u1ed5ng th\u1ec3.<\/p>\n

M\u1eabu \u0111\u1ea1i di\u1ec7n<\/b> l\u00e0 m\u1eabu m\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1eabu c\u0169ng gi\u1ed1ng nh\u01b0 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1ed5ng th\u1ec3.<\/p>\n

\u0110\u1eb7c tr\u01b0ng c\u1ee7a k\u0129 thu\u1eadt ph\u00e2n t\u1ed5<\/font><\/h3>\n

– M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c ph\u00e2n t\u1ed5<\/b> l\u00e0 l\u00e0m gi\u1ea3m t\u00ednh bi\u1ebfn \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed trong m\u1ed7i nh\u00f3m \u0111\u1ec3 l\u00e0m gi\u1ea3m c\u1ee1 m\u1eabu m\u00e0 r\u1ee7i ro l\u1ea5y m\u1eabu kh\u00f4ng t\u0103ng t\u01b0\u01a1ng \u1ee9ng. T\u00ednh ch\u1ea5t c\u1ee7a c\u00e1c nh\u00f3m c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng \u0111\u1ec3 cho m\u1ed9t \u0111\u01a1n v\u1ecb l\u1eaby m\u1eabu ch\u1ec9 thu\u1ed9c v\u1ec1 m\u1ed9t nh\u00f3m duy nh\u1ea5t.<\/p>\n

– Ph\u00e2n t\u1ed5 l\u00e0 vi\u1ec7c l\u00e0m tr\u01b0\u1edbc khi t\u00ednh to\u00e1n c\u1ee1 m\u1eabu c\u1ee7a ki\u1ec3m to\u00e1n vi\u00ean v\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a m\u1eabu ki\u1ec3m to\u00e1n.<\/p>\n

– Khi ph\u00e2n t\u1ed5, c\u00e1c t\u1ed5ng th\u1ec3 con c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ri\u00eang l\u1ebb ho\u1eb7c k\u1ebft h\u1ee3p \u0111\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng v\u1ec1 nh\u1eefng \u0111\u1eb7c tr\u01b0ng cho to\u00e0n b\u1ed9 t\u1ed5ng th\u1ec3 l\u1edbn.<\/p>\n

– \u0110\u1ed1i v\u1edbi c\u00e1c ph\u1ea7n t\u1eed c\u00f3 \u0111\u1eb7c tr\u01b0ng b\u1ea5t th\u01b0\u1eddng kh\u00e1c bi\u1ec7t s\u1ebd \u0111\u01b0\u1ee3c t\u00e1ch ra th\u00e0nh t\u1ed5ng th\u1ec3 ri\u00eang bi\u1ec7t c\u00f3 t\u00ednh \u0111\u1ed3ng nh\u1ea5t v\u00e0 h\u01a1n t\u1ed5ng th\u1ec3 \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5.<\/p>\n

– K\u0129 thu\u1eadt ph\u00e2n t\u1ed5 c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m, n\u00f3 gi\u00fap ki\u1ec3m to\u00e1n vi\u00ean l\u1ea5y \u0111\u01b0\u1ee3c m\u1eabu \u0111\u1ea1i di\u1ec7n cho t\u1ed5ng th\u1ec3 l\u1edbn d\u1ec5 d\u00e0ng. \u0110\u1ed3ng th\u1eddi k\u00edch th\u01b0\u1edbc m\u1eabu \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn t\u1eeb c\u00e1c t\u1ed5ng th\u1ec3 con s\u1ebd nh\u1ecf h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn t\u1eeb t\u1ed5ng th\u1ec3 l\u1edbn.<\/p>\n

– B\u00ean c\u1ea1nh \u0111\u00f3, k\u0129 thu\u1eadt n\u00e0y c\u00f2n gi\u00fap ki\u1ec3m to\u00e1n vi\u00ean g\u1eafn v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1eabu v\u1edbi t\u00ednh tr\u1ecdng y\u1ebfu, k\u1ec3 c\u1ea3 vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c th\u1ee7 t\u1ee5c ki\u1ec3m to\u00e1n th\u00edch h\u1ee3p cho m\u1ed7i t\u1ed5ng th\u1ec3 con.<\/p>\n

Ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1edbi c\u00e1c ph\u1ea7n t\u1eed c\u00f3 t\u00ednh tr\u1ecdng y\u1ebfu th\u00ec ki\u1ec3m to\u00e1n vi\u00ean c\u00f3 th\u1ec3 ki\u1ec3m to\u00e1n to\u00e0n b\u1ed9, n\u1ebfu kh\u00f4ng th\u00ec l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m to\u00e1n th\u00edch h\u1ee3p.<\/p>\n

(T\u00e0i li\u1ec7u tham kh\u1ea3o: Gi\u00e1o tr\u00ecnh L\u00ed thuy\u1ebft ki\u1ec3m to\u00e1n, NXB T\u00e0i ch\u00ednh)<\/i><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

\n K\u0129 thu\u1eadt ph\u00e2n t\u1ed5 (ti\u1ebfng Anh: Clustering techniques) l\u00e0 vi\u1ec7c chia m\u1ed9t t\u1ed5ng th\u1ec3 l\u1edbn th\u00e0nh c\u00e1c t\u1ed5ng th\u1ec3 con (t\u1ed5ng th\u1ec3 th\u1ee9 c\u1ea5p), th\u00e0nh c\u00e1c ph\u1ea7n t\u1eed t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng nh\u1ea5t theo m\u1ed9t ti\u00eau th\u1ee9c n\u00e0o \u0111\u00f3.\n <\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[419],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34330"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=34330"}],"version-history":[{"count":1,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34330\/revisions"}],"predecessor-version":[{"id":67971,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/34330\/revisions\/67971"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=34330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=34330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=34330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}