{"id":11137,"date":"2026-05-08T16:04:28","date_gmt":"2026-05-08T09:04:28","guid":{"rendered":"https:\/\/vtiacademy.site\/?p=11137"},"modified":"2026-05-08T16:32:13","modified_gmt":"2026-05-08T09:32:13","slug":"tim-hieu-data-analysis-la-gi","status":"publish","type":"post","link":"https:\/\/vtiacademy.site\/index.php\/tim-hieu-data-analysis-la-gi\/","title":{"rendered":"Data Analysis l\u00e0 g\u00ec? T\u1ed5ng quan v\u1ec1 ph\u00e2n t\u00edch d\u1eef li\u1ec7u cho ng\u01b0\u1eddi m\u1edbi"},"content":{"rendered":"

Tr\u00edch xu\u1ea5t nh\u1eefng th\u00f4ng tin gi\u00e1 tr\u1ecb t\u1eeb d\u1eef li\u1ec7u l\u00e0 m\u1ed9t trong nh\u1eefng ho\u1ea1t \u0111\u1ed9ng c\u00f3 vai tr\u00f2 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong th\u1eddi \u0111\u1ea1i hi\u1ec7n nay. Ch\u00ednh v\u00ec v\u1eady, c\u00e1c doanh nghi\u1ec7p s\u1eb5n s\u00e0ng \u0111\u1ea7u t\u01b0 m\u1ea1nh v\u00e0o ph\u00e2n t\u00edch d\u1eef li\u1ec7u (data analysis) nh\u1eb1m t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 kinh doanh.<\/span><\/p>\n

N\u1ebfu b\u1ea1n \u0111ang b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u v\u1ec1 ph\u00e2n t\u00edch d\u1eef li\u1ec7u, b\u00e0i vi\u1ebft n\u00e0y c\u1ee7a Trainocate Vietnam<\/a> s\u1ebd mang \u0111\u1ebfn c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 data analysis, bao g\u1ed3m quy tr\u00ecnh th\u1ef1c hi\u1ec7n, c\u00e1c lo\u1ea1i h\u00ecnh ph\u1ed5 bi\u1ebfn v\u00e0 nh\u1eefng k\u1ef9 n\u0103ng c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e1t tri\u1ec3n trong l\u0129nh v\u1ef1c n\u00e0y.<\/span><\/p>\n

\"Data
Data Analysis l\u00e0 g\u00ec? T\u1ed5ng quan v\u1ec1 ph\u00e2n t\u00edch d\u1eef li\u1ec7u cho ng\u01b0\u1eddi m\u1edbi<\/figcaption><\/figure>\n

1. \u0110\u1ecbnh ngh\u0129a Data Analysis l\u00e0 g\u00ec?<\/strong><\/h2>\n

(Data Analysis) Ph\u00e2n t\u00edch d\u1eef li\u1ec7u <\/span>l\u00e0 qu\u00e1 tr\u00ecnh<\/b> ki\u1ec3m tra, l\u00e0m s\u1ea1ch, chuy\u1ec3n \u0111\u1ed5i v\u00e0 m\u00f4 h\u00ecnh h\u00f3a d\u1eef li\u1ec7u<\/span><\/i> nh\u1eb1m <\/span>kh\u00e1m ph\u00e1 th\u00f4ng tin h\u1eefu \u00edch<\/span><\/i>, \u0111\u01b0a ra <\/span>k\u1ebft lu\u1eadn v\u00e0 h\u1ed7 tr\u1ee3 ra quy\u1ebft \u0111\u1ecbnh.<\/span><\/i>\u00a0<\/span><\/p>\n

Trong th\u1ef1c t\u1ebf, d\u1eef li\u1ec7u t\u1ef1 b\u1ea3n th\u00e2n n\u00f3 g\u1ea7n nh\u01b0 kh\u00f4ng mang nhi\u1ec1u gi\u00e1 tr\u1ecb n\u1ebfu ch\u01b0a \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch \u0111\u00fang c\u00e1ch.\u00a0<\/span>Th\u00f4ng qua Data Analysis, doanh nghi\u1ec7p c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft xu h\u01b0\u1edbng th\u1ecb tr\u01b0\u1eddng, hi\u1ec3u h\u00e0nh vi kh\u00e1ch h\u00e0ng, \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 ph\u00e1t hi\u1ec7n c\u00e1c c\u01a1 h\u1ed9i ho\u1eb7c r\u1ee7i ro ti\u1ec1m \u1ea9n.<\/span><\/p>\n

2. Quy tr\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u (Data Analysis Process)<\/strong><\/h2>\n

Trong c\u00e1c t\u00e0i li\u1ec7u h\u1ecdc thu\u1eadt v\u00e0 th\u1ef1c ti\u1ec5n doanh nghi\u1ec7p, quy tr\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng c\u00e1c b\u01b0\u1edbc logic nh\u01b0 sau:<\/span><\/p>\n

X\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1 \u2192 Thu th\u1eadp d\u1eef li\u1ec7u \u2192 X\u1eed l\u00fd d\u1eef li\u1ec7u \u2192 Ph\u00e2n t\u00edch \u2192 Di\u1ec5n gi\u1ea3i k\u1ebft qu\u1ea3 \u2192 Ra quy\u1ebft \u0111\u1ecbnh.<\/b><\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, quy tr\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p h\u01a1n t\u00f9y v\u00e0o quy m\u00f4 d\u1ef1 \u00e1n, m\u1ee5c ti\u00eau kinh doanh v\u00e0 m\u1ee9c \u0111\u1ed9 chuy\u00ean s\u00e2u c\u1ee7a t\u1eebng l\u0129nh v\u1ef1c. Tuy nhi\u00ean, c\u00e1c b\u01b0\u1edbc tr\u00ean \u0111\u01b0\u1ee3c xem l\u00e0 quy tr\u00ecnh n\u1ec1n t\u1ea3ng ph\u1ed5 bi\u1ebfn, gi\u00fap b\u1ea1n hi\u1ec3u c\u00e1ch Data Analysis v\u1eadn h\u00e0nh trong th\u1ef1c t\u1ebf.\u00a0<\/span><\/p>\n

B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1\u00a0<\/strong><\/p>\n

X\u00e1c \u0111\u1ecbnh r\u00f5 v\u1ea5n \u0111\u1ec1 c\u1ea7n gi\u1ea3i quy\u1ebft ho\u1eb7c c\u00e2u h\u1ecfi c\u1ea7n tr\u1ea3 l\u1eddi m\u00e0 b\u1ea1n c\u1ea7n tr\u1ea3 l\u1eddi. V\u00ed d\u1ee5 nh\u01b0 \u201cNguy\u00ean nh\u00e2n gi\u1ea3m doanh thu trong qu\u00fd II l\u00e0 g\u00ec? \u201c\u0110\u00e2u l\u00e0 nh\u00f3m kh\u00e1ch h\u00e0ng ti\u1ec1m n\u0103ng cho s\u1ea3n ph\u1ea9m A\u201d. B\u01b0\u1edbc n\u00e0y s\u1ebd gi\u00fap b\u1ea1n \u0111\u1ecbnh h\u01b0\u1edbng to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch.<\/span><\/p>\n

B\u01b0\u1edbc 2: Thu th\u1eadp d\u1eef li\u1ec7u<\/strong><\/p>\n

T\u1eadp h\u1ee3p d\u1eef li\u1ec7u li\u00ean quan t\u1eeb nhi\u1ec1u ngu\u1ed3n nh\u01b0 h\u1ec7 th\u1ed1ng n\u1ed9i b\u1ed9, website, CRM ho\u1eb7c c\u00e1c n\u1ec1n t\u1ea3ng b\u00ean ngo\u00e0i \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho vi\u1ec7c ph\u00e2n t\u00edch.<\/span><\/p>\n

B\u01b0\u1edbc 3: L\u00e0m s\u1ea1ch v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u<\/strong><\/p>\n

Chu\u1ea9n h\u00f3a d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch x\u1eed l\u00fd thi\u1ebfu s\u00f3t, lo\u1ea1i b\u1ecf tr\u00f9ng l\u1eb7p, s\u1eeda l\u1ed7i \u0111\u1ecbnh d\u1ea1ng v\u00e0 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u nh\u1ea5t qu\u00e1n tr\u01b0\u1edbc khi ph\u00e2n t\u00edch.<\/span><\/p>\n

B\u01b0\u1edbc 4: Ph\u00e2n t\u00edch d\u1eef li\u1ec7u<\/strong><\/p>\n

S\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea v\u00e0 tr\u1ef1c quan h\u00f3a \u0111\u1ec3 t\u00ecm ra xu h\u01b0\u1edbng, m\u1ed1i quan h\u1ec7 v\u00e0 insight t\u1eeb d\u1eef li\u1ec7u.<\/span><\/p>\n

B\u01b0\u1edbc 5: Tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3<\/strong><\/p>\n

Di\u1ec5n gi\u1ea3i v\u00e0 th\u1ec3 hi\u1ec7n k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch qua b\u00e1o c\u00e1o, bi\u1ec3u \u0111\u1ed3 ho\u1eb7c dashboard \u0111\u1ec3 ng\u01b0\u1eddi kh\u00e1c d\u1ec5 hi\u1ec3u v\u00e0 s\u1eed d\u1ee5ng.<\/span><\/p>\n

B\u01b0\u1edbc 6: H\u1ed7 tr\u1ee3 ra quy\u1ebft \u0111\u1ecbnh<\/strong><\/p>\n

Chuy\u1ec3n th\u00f4ng tin h\u1eefu \u00edch t\u1eeb d\u1eef li\u1ec7u th\u00e0nh h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 nh\u1eb1m t\u1ed1i \u01b0u ho\u1ea1t \u0111\u1ed9ng, c\u1ea3i thi\u1ec7n chi\u1ebfn l\u01b0\u1ee3c v\u00e0 h\u1ed7 tr\u1ee3 quy\u1ebft \u0111\u1ecbnh kinh doanh.<\/span><\/p>\n

\"\"
Data Analysis l\u00e0 g\u00ec? T\u1ed5ng quan v\u1ec1 ph\u00e2n t\u00edch d\u1eef li\u1ec7u cho ng\u01b0\u1eddi m\u1edbi<\/figcaption><\/figure>\n

3. C\u00e1c lo\u1ea1i h\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u (Types of Data Analysis)<\/strong><\/h2>\n

Ph\u00e2n t\u00edch d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau, t\u00f9y v\u00e0o m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. M\u1ed7i lo\u1ea1i h\u00ecnh s\u1ebd tr\u1ea3 l\u1eddi cho m\u1ed9t c\u00e2u h\u1ecfi kh\u00e1c nhau \u2014 t\u1eeb vi\u1ec7c nh\u00ecn l\u1ea1i qu\u00e1 kh\u1ee9 cho \u0111\u1ebfn d\u1ef1 \u0111o\u00e1n v\u00e0 \u0111\u1ec1 xu\u1ea5t h\u00e0nh \u0111\u1ed9ng trong t\u01b0\u01a1ng lai.<\/span><\/p>\n

C\u00e1c lo\u1ea1i ph\u00e2n t\u00edch d\u1eef li\u1ec7u <\/span>kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t quy tr\u00ecnh b\u1eaft bu\u1ed9c ph\u1ea3i \u0111i theo tu\u1ea7n t\u1ef1, m\u00e0 l\u00e0 nh\u1eefng c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c nhau t\u00f9y theo m\u1ee5c ti\u00eau ph\u00e2n t\u00edch.<\/b>\u00a0<\/span><\/p>\n

Trong th\u1ef1c t\u1ebf, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ri\u00eang l\u1ebb cho t\u1eebng b\u00e0i to\u00e1n c\u1ee5 th\u1ec3, ho\u1eb7c k\u1ebft h\u1ee3p v\u1edbi nhau trong m\u1ed9t quy tr\u00ecnh ph\u00e2n t\u00edch ho\u00e0n ch\u1ec9nh \u0111\u1ec3 \u0111i t\u1eeb vi\u1ec7c hi\u1ec3u d\u1eef li\u1ec7u qu\u00e1 kh\u1ee9 \u0111\u1ebfn d\u1ef1 \u0111o\u00e1n v\u00e0 \u0111\u01b0a ra h\u00e0nh \u0111\u1ed9ng trong t\u01b0\u01a1ng lai.\u00a0<\/span><\/p>\n

Ph\u00e2n t\u00edch m\u00f4 t\u1ea3 (Descriptive Analytics)<\/strong><\/p>\n

Ph\u00e2n t\u00edch m\u00f4 t\u1ea3 t\u1eadp trung tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <\/span>\u201c\u0110i\u1ec1u g\u00ec \u0111\u00e3 x\u1ea3y ra?\u201d<\/b> trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 t\u1ed5ng h\u1ee3p v\u00e0 t\u00f3m t\u1eaft d\u1eef li\u1ec7u l\u1ecbch s\u1eed \u0111\u1ec3 gi\u00fap hi\u1ec3u r\u00f5 c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u00e3 di\u1ec5n ra.<\/span><\/p>\n

Ph\u00e2n t\u00edch ch\u1ea9n \u0111o\u00e1n (Diagnostic Analytics)<\/strong><\/p>\n

Ph\u00e2n t\u00edch ch\u1ea9n \u0111o\u00e1n \u0111i xa h\u01a1n b\u1eb1ng c\u00e1ch tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <\/span>\u201cV\u00ec sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra?\u201d<\/b>. Thay v\u00ec ch\u1ec9 m\u00f4 t\u1ea3 s\u1ef1 ki\u1ec7n, n\u00f3 t\u1eadp trung v\u00e0o vi\u1ec7c t\u00ecm ra nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1. <\/span>Lo\u1ea1i ph\u00e2n t\u00edch n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c \u0111i\u1ec3m b\u1ea5t th\u01b0\u1eddng, d\u1eef li\u1ec7u ngo\u1ea1i lai ho\u1eb7c c\u00e1c m\u1eabu h\u00e0nh vi kh\u00f4ng b\u00ecnh th\u01b0\u1eddng, sau \u0111\u00f3 ph\u00e2n t\u00edch s\u00e2u h\u01a1n \u0111\u1ec3 gi\u1ea3i th\u00edch nguy\u00ean nh\u00e2n.<\/span><\/p>\n

Ph\u00e2n t\u00edch d\u1ef1 \u0111o\u00e1n (Predictive Analytics)<\/strong><\/p>\n

Ph\u00e2n t\u00edch d\u1ef1 \u0111o\u00e1n tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <\/span>\u201c\u0110i\u1ec1u g\u00ec c\u00f3 th\u1ec3 x\u1ea3y ra trong t\u01b0\u01a1ng lai?\u201d<\/b>. N\u00f3 s\u1eed d\u1ee5ng d\u1eef li\u1ec7u l\u1ecbch s\u1eed k\u1ebft h\u1ee3p v\u1edbi c\u00e1c m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea v\u00e0 machine learning \u0111\u1ec3 d\u1ef1 b\u00e1o k\u1ebft qu\u1ea3 trong t\u01b0\u01a1ng lai. <\/span>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e2n t\u00edch d\u1ef1 \u0111o\u00e1n ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng d\u1eef li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng. Lo\u1ea1i ph\u00e2n t\u00edch n\u00e0y gi\u00fap doanh nghi\u1ec7p ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh.<\/span><\/p>\n

Ph\u00e2n t\u00edch \u0111\u1ec1 xu\u1ea5t (Prescriptive Analytics)<\/strong><\/p>\n

Ph\u00e2n t\u00edch \u0111\u1ec1 xu\u1ea5t t\u1eadp trung tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <\/span>\u201cCh\u00fang ta n\u00ean l\u00e0m g\u00ec?\u201d<\/b>. Kh\u00f4ng ch\u1ec9 d\u1ef1 \u0111o\u00e1n t\u01b0\u01a1ng lai, n\u00f3 c\u00f2n \u0111\u01b0a ra c\u00e1c khuy\u1ebfn ngh\u1ecb h\u00e0nh \u0111\u1ed9ng nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau mong mu\u1ed1n.<\/span><\/p>\n

Ph\u00e2n t\u00edch nh\u1eadn th\u1ee9c (Cognitive Analytics)<\/strong><\/p>\n

Ph\u00e2n t\u00edch nh\u1eadn th\u1ee9c l\u00e0 c\u1ea5p \u0111\u1ed9 cao nh\u1ea5t, tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi <\/span>\u201c\u0110i\u1ec1u g\u00ec c\u00f3 th\u1ec3 x\u1ea3y ra v\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 h\u1ecdc \u0111\u01b0\u1ee3c g\u00ec t\u1eeb \u0111\u00f3?\u201d<\/b>. N\u00f3 m\u00f4 ph\u1ecfng t\u01b0 duy con ng\u01b0\u1eddi b\u1eb1ng c\u00e1ch h\u1ecdc li\u00ean t\u1ee5c t\u1eeb d\u1eef li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n theo th\u1eddi gian. <\/span>Lo\u1ea1i ph\u00e2n t\u00edch n\u00e0y k\u1ebft h\u1ee3p tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o, machine learning v\u00e0 deep learning \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c m\u1eabu \u1ea9n v\u00e0 t\u1ea1o ra insight th\u00f4ng minh h\u01a1n. H\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 h\u1ecdc t\u1eeb d\u1eef li\u1ec7u v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi con ng\u01b0\u1eddi, t\u1eeb \u0111\u00f3 ng\u00e0y c\u00e0ng \u201cth\u00f4ng minh\u201d h\u01a1n theo th\u1eddi gian.<\/span><\/p>\n

4. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch d\u1eef li\u1ec7u (Data Analysis Methods)<\/strong><\/h2>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch d\u1eef li\u1ec7u l\u00e0 nh\u1eefng k\u1ef9 thu\u1eadt c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd, kh\u00e1m ph\u00e1 v\u00e0 r\u00fat ra insight t\u1eeb d\u1eef li\u1ec7u. Kh\u00e1c v\u1edbi lo\u1ea1i h\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u (types of analysis) tapah trung v\u00e0o m\u1ee5c \u0111\u00edch ph\u00e2n t\u00edch, th\u00ec ph\u01b0\u01a1ng ph\u00e1p (methods) tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cD\u00f9ng c\u00e1ch n\u00e0o \u0111\u1ec3 ph\u00e2n t\u00edch?\u201d\u00a0<\/span><\/p>\n