{"id":10332,"date":"2022-08-09T06:58:17","date_gmt":"2022-08-09T06:58:17","guid":{"rendered":"https:\/\/worknow.vn\/data-analyst\/"},"modified":"2023-06-01T09:56:25","modified_gmt":"2023-06-01T09:56:25","slug":"phan-tich-du-lieu","status":"publish","type":"page","link":"https:\/\/worknow.vn\/vi\/phan-tich-du-lieu\/","title":{"rendered":"Ph\u00e2n T\u00edch D\u1eef Li\u1ec7u"},"content":{"rendered":"
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Ph\u00e2n T\u00edch D\u1eef Li\u1ec7u<\/p><\/div>[vc_row_inner][vc_column_inner][vc_empty_space height=”10px”]

M\u00f4 t\u1ea3 c\u00f4ng vi\u1ec7c Ph\u00e2n T\u00edch D\u1eef Li\u1ec7u<\/h4>

M\u1ed9t nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u thu th\u1eadp, x\u1eed l\u00fd v\u00e0 th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch c\u00e1c t\u1eadp d\u1eef li\u1ec7u l\u1edbn. M\u1ecdi doanh nghi\u1ec7p, d\u00f9 l\u00e0 nh\u1ecf hay l\u1edbn, \u0111\u1ec1u tri\u1ec3n khai v\u00e0 thu th\u1eadp d\u1eef li\u1ec7u. D\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u1edf d\u1ea1ng ph\u1ea3n h\u1ed3i c\u1ee7a kh\u00e1ch h\u00e0ng, t\u00e0i kho\u1ea3n, h\u1eadu c\u1ea7n, nghi\u00ean c\u1ee9u ti\u1ebfp th\u1ecb, v.v. M\u1ed9t nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u l\u00e0 m\u1ed9t ng\u01b0\u1eddi chuy\u00ean l\u1ea5y d\u1eef li\u1ec7u v\u00e0 t\u00ecm ra nhi\u1ec1u bi\u1ec7n ph\u00e1p, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1ch c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m kh\u00e1ch h\u00e0ng, \u0111\u1ecbnh gi\u00e1 v\u1eadt li\u1ec7u m\u1edbi v\u00e0 c\u00e1ch gi\u1ea3m chi ph\u00ed v\u1eadn chuy\u1ec3n, \u2026. Nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u x\u1eed l\u00fd d\u1eef li\u1ec7u, l\u1eadp m\u00f4 h\u00ecnh d\u1eef li\u1ec7u v\u00e0 b\u00e1o c\u00e1o. C\u00e1c nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u khai tri\u1ec3n c\u00e1c c\u00e1ch thu th\u1eadp v\u00e0 nghi\u00ean c\u1ee9u d\u1eef li\u1ec7u \u0111\u1ec3 gi\u00fap c\u00e1c doanh nghi\u1ec7p t\u0103ng t\u00e0i ch\u00ednh. C\u00e1c nh\u00e0 ph\u00e2n t\u00edch n\u00e0y th\u01b0\u1eddng tham kh\u1ea3o \u00fd ki\u1ebfn \u200b\u200bc\u1ee7a ch\u1ee7 doanh nghi\u1ec7p, CEO ho\u1eb7c th\u00e0nh vi\u00ean h\u1ed9i \u0111\u1ed3ng qu\u1ea3n tr\u1ecb \u0111\u1ec3 hi\u1ec3u c\u00e1c m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3 c\u1ee7a c\u00f4ng ty \u0111\u00f3. Sau \u0111\u00f3, c\u00e1c nh\u00e0 ph\u00e2n t\u00edch l\u1eadp b\u00e1o c\u00e1o d\u1ef1a tr\u00ean d\u1eef li\u1ec7u thu th\u1eadp \u0111\u01b0\u1ee3c gi\u00fap c\u00e1c doanh nghi\u1ec7p \u0111\u00f3 t\u1ea1o ra c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau. C\u00f3 m\u1ed9t y\u00eau c\u1ea7u cao \u0111\u00f3 l\u00e0 c\u00e1c chuy\u00ean gia c\u00f3 th\u1ec3 gi\u00fap c\u00e1c t\u1ed5 ch\u1ee9c chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u th\u00f4 th\u00e0nh th\u00f4ng tin c\u00f3 \u00fd ngh\u0129a, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 gi\u00fap ph\u00e1t tri\u1ec3n doanh nghi\u1ec7p.<\/p>\n

Microsoft Excel v\u00e0 SQL ph\u1ea3i l\u00e0 nh\u1eefng tr\u1ee5 c\u1ed9t ch\u00ednh trong h\u1ed9p c\u00f4ng c\u1ee5 c\u1ee7a b\u1ea5t k\u1ef3 nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u n\u00e0o. Trong khi Excel ph\u1ed5 bi\u1ebfn kh\u1eafp c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p, SQL c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c t\u1eadp d\u1eef li\u1ec7u l\u1edbn h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi coi l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u. H\u1ecdc m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh th\u1ed1ng k\u00ea nh\u01b0 Python ho\u1eb7c R s\u1ebd cho ph\u00e9p b\u1ea1n x\u1eed l\u00fd c\u00e1c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh ph\u1ee9c t\u1ea1p. M\u1eb7c d\u00f9 Python v\u00e0 R l\u00e0 m\u1ed9t trong nh\u1eefng ng\u00f4n ng\u1eef ph\u1ed5 bi\u1ebfn nh\u1ea5t, nh\u01b0ng b\u1ea1n n\u00ean xem x\u00e9t m\u00f4 t\u1ea3 c\u00f4ng vi\u1ec7c c\u1ee7a v\u1ecb tr\u00ed m\u00e0 b\u1ea1n quan t\u00e2m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ng\u00f4n ng\u1eef n\u00e0o h\u1eefu \u00edch nh\u1ea5t cho ng\u00e0nh c\u1ee7a b\u1ea1n. Tr\u00ecnh b\u00e0y nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng v\u00e0 h\u1ea5p d\u1eabn l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u gi\u1ecfi. Bi\u1ebft c\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 tr\u00ecnh b\u00e0y th\u00f4ng tin th\u00f4ng qua bi\u1ec3u \u0111\u1ed3 v\u00e0 \u0111\u1ed3 th\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed3ng nghi\u1ec7p, nh\u00e0 tuy\u1ec3n d\u1ee5ng v\u00e0 c\u00e1c b\u00ean li\u00ean quan s\u1ebd hi\u1ec3u c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n. Tableau, Jupyter Notebook v\u00e0 Excel l\u00e0 m\u1ed9t trong s\u1ed1 nhi\u1ec1u c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o h\u00ecnh \u1ea3nh. Bi\u1ebft ch\u00ednh x\u00e1c c\u00e1c kh\u00e1i ni\u1ec7m v\u00e0 ti\u1ec7n \u00edch c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 d\u1eef li\u1ec7u s\u1ebd gi\u00fap b\u1ea1n r\u1ea5t nhi\u1ec1u trong c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh. N\u1eafm v\u1eefng v\u1ec1 th\u1ed1ng k\u00ea v\u00e0 to\u00e1n h\u1ecdc s\u1ebd gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 n\u00e0o t\u1ed1t nh\u1ea5t \u0111\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3, gi\u00fap b\u1ea1n n\u1eafm b\u1eaft l\u1ed7i trong d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh v\u00e0 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 k\u1ebft qu\u1ea3. M\u1ed9t nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 v\u1ec1 c\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c \u0111\u1eb7t ra v\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft. H\u1ecd c\u0169ng c\u00f3 th\u1ec3 t\u00ecm ra c\u00e1c m\u1eabu ho\u1eb7c xu h\u01b0\u1edbng ti\u1ebft l\u1ed9 c\u00e2u chuy\u1ec7n. C\u00f3 k\u1ef9 n\u0103ng t\u01b0 duy ph\u1ea3n bi\u1ec7n s\u1ebd cho ph\u00e9p b\u1ea1n t\u1eadp trung v\u00e0o \u0111\u00fang lo\u1ea1i d\u1eef li\u1ec7u, nh\u1eadn ra c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch t\u1ed1t nh\u1ea5t v\u00e0 n\u1eafm b\u1eaft l\u1ed7i trong c\u00f4ng vi\u1ec7c. C\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i \u00fd t\u01b0\u1edfng c\u1ee7a b\u1ea1n cho nh\u1eefng ng\u01b0\u1eddi kh\u00e1c s\u1ebd r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n. K\u1ef9 n\u0103ng vi\u1ebft v\u00e0 n\u00f3i t\u1ed1t l\u00e0 th\u1ebf m\u1ea1nh \u0111\u1ec3 c\u00f3 th\u1ec3 giao ti\u1ebfp v\u1edbi \u0111\u1ed3ng nghi\u1ec7p v\u00e0 c\u00e1c b\u00ean li\u00ean quan kh\u00e1c. Bi\u1ebft v\u1ec1 ng\u00e0nh m\u00e0 b\u1ea1n l\u00e0m vi\u1ec7c ho\u1eb7c nh\u1eefng ng\u00e0nh kh\u00e1c, ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe, kinh doanh, t\u00e0i ch\u00ednh\u2014 s\u1ebd mang l\u1ea1i l\u1ee3i th\u1ebf cho b\u1ea1n trong c\u00f4ng vi\u1ec7c v\u00e0 xin vi\u1ec7c. N\u1ebfu b\u1ea1n \u0111ang c\u1ed1 g\u1eafng th\u00e2m nh\u1eadp v\u00e0o m\u1ed9t ng\u00e0nh c\u1ee5 th\u1ec3, h\u00e3y d\u00e0nh ch\u00fat th\u1eddi gian ch\u00fa \u00fd \u0111\u1ebfn tin t\u1ee9c trong ng\u00e0nh ho\u1eb7c \u0111\u1ecdc m\u1ed9t cu\u1ed1n s\u00e1ch v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n l\u00e0m quen v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 xu h\u01b0\u1edbng ch\u00ednh c\u1ee7a ng\u00e0nh.<\/p>\n

H\u1ea7u h\u1ebft \u0111\u1ea7u v\u00e0o c\u1ee7a c\u00e1c v\u1ecb tr\u00ed nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u1ec1u y\u00eau c\u1ea7u \u00edt nh\u1ea5t b\u1eb1ng c\u1eed nh\u00e2n. C\u00e1c l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 bao g\u1ed3m ph\u00e2n t\u00edch d\u1eef li\u1ec7u, to\u00e1n h\u1ecdc, t\u00e0i ch\u00ednh, kinh t\u1ebf ho\u1eb7c khoa h\u1ecdc m\u00e1y t\u00ednh. \u0110\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng th\u1ea1c s\u0129 v\u1ec1 ph\u00e2n t\u00edch d\u1eef li\u1ec7u, khoa h\u1ecdc d\u1eef li\u1ec7u ho\u1eb7c ph\u00e2n t\u00edch kinh doanh c\u00f3 th\u1ec3 m\u1edf ra c\u01a1 h\u1ed9i vi\u1ec7c l\u00e0m m\u1edbi v\u1edbi m\u1ee9c l\u01b0\u01a1ng cao h\u01a1n. N\u1ebfu b\u1ea1n \u0111ang c\u00e2n nh\u1eafc l\u1ea5y b\u1eb1ng \u0111\u1ec3 tr\u1edf th\u00e0nh nh\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u, th\u00ec t\u1eadp trung v\u00e0o c\u00e1c m\u00f4n h\u1ecdc v\u1ec1 th\u1ed1ng k\u00ea, to\u00e1n h\u1ecdc ho\u1eb7c khoa h\u1ecdc m\u00e1y t\u00ednh c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n c\u00f3 m\u1ed9t kh\u1edfi \u0111\u1ea7u thu\u1eadn l\u1ee3i v\u1edbi c\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng.<\/p><\/div><\/div><\/div>[vc_empty_space height=”30px”]

Nhi\u1ec7m v\u1ee5 chung c\u1ee7 Ph\u00e2n T\u00edch D\u1eef Li\u1ec7u<\/h4>

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  • Thi\u1ebft k\u1ebf v\u00e0 duy tr\u00ec h\u1ec7 th\u1ed1ng d\u1eef li\u1ec7u v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u; \u0111i\u1ec1u n\u00e0y bao g\u1ed3m s\u1eeda l\u1ed7i m\u00e3 h\u00f3a v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c li\u00ean quan \u0111\u1ebfn d\u1eef li\u1ec7u.<\/li>\n
  • \u00a0Khai th\u00e1c d\u1eef li\u1ec7u t\u1eeb c\u00e1c ngu\u1ed3n ch\u00ednh v\u00e0 ph\u1ee5, sau \u0111\u00f3 s\u1eafp x\u1ebfp l\u1ea1i d\u1eef li\u1ec7u \u1edf \u0111\u1ecbnh d\u1ea1ng m\u00e0 con ng\u01b0\u1eddi ho\u1eb7c m\u00e1y m\u00f3c c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ecdc \u0111\u01b0\u1ee3c.<\/li>\n
  • \u00a0S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea \u0111\u1ec3 gi\u1ea3i th\u00edch c\u00e1c t\u1eadp d\u1eef li\u1ec7u, \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c xu h\u01b0\u1edbng v\u00e0 m\u1eabu c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 tr\u1ecb trong d\u1ef1 \u0111o\u00e1n ph\u00e2n t\u00edch.<\/li>\n
  • \u00a0Th\u1ec3 hi\u1ec7n t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00f4ng vi\u1ec7c trong b\u1ed1i c\u1ea3nh c\u00e1c xu h\u01b0\u1edbng \u0111\u1ecba ph\u01b0\u01a1ng, qu\u1ed1c gia v\u00e0 to\u00e0n c\u1ea7u t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn c\u1ea3 t\u1ed5 ch\u1ee9c v\u00e0 ng\u00e0nh c\u1ee7a h\u1ecd.<\/li>\n
  • \u00a0Chu\u1ea9n b\u1ecb c\u00e1c b\u00e1o c\u00e1o cho l\u00e3nh \u0111\u1ea1o \u0111i\u1ec1u h\u00e0nh \u0111\u1ec3 truy\u1ec1n \u0111\u1ea1t hi\u1ec7u qu\u1ea3 c\u00e1c xu h\u01b0\u1edbng, m\u1eabu v\u00e0 d\u1ef1 \u0111o\u00e1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u1eef li\u1ec7u c\u00f3 li\u00ean quan.<\/li>\n
  • \u00a0C\u1ed9ng t\u00e1c v\u1edbi c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean, k\u1ef9 s\u01b0 v\u00e0 l\u00e3nh \u0111\u1ea1o t\u1ed5 ch\u1ee9c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c c\u01a1 h\u1ed9i c\u1ea3i ti\u1ebfn quy tr\u00ecnh, \u0111\u1ec1 xu\u1ea5t s\u1eeda \u0111\u1ed5i h\u1ec7 th\u1ed1ng v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c ch\u00ednh s\u00e1ch qu\u1ea3n tr\u1ecb d\u1eef li\u1ec7u.<\/li>\n
  • \u00a0L\u1eadp t\u00e0i li\u1ec7u th\u00edch h\u1ee3p cho ph\u00e9p c\u00e1c b\u00ean li\u00ean quan hi\u1ec3u c\u00e1c b\u01b0\u1edbc c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch d\u1eef li\u1ec7u, sao ch\u00e9p ho\u1eb7c l\u1eb7p l\u1ea1i ph\u00e2n t\u00edch n\u1ebfu c\u1ea7n.<\/li>\n<\/ul>\n

    K\u1ef9 n\u0103ng:<\/p>\n

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    • \u00a0T\u01b0 duy s\u00e1ng t\u1ea1o v\u00e0 ph\u1ea3n bi\u1ec7n<\/li>\n
    • \u00a0Giao ti\u1ebfp<\/li>\n
    • \u00a0Truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/li>\n
    • \u00a0Khai th\u00e1c d\u1eef li\u1ec7u<\/li>\n
    • \u00a0L\u00e0m s\u1ea1ch d\u1eef li\u1ec7u<\/li>\n
    • \u00a0Ng\u00f4n ng\u1eef v\u00e0 c\u00f4ng c\u1ee5 l\u1eadp tr\u00ecnh (Python, R, Excel v\u00e0 Tableau)<\/li>\n
    • Tr\u00ecnh \u0111\u1ed9 chuy\u00ean m\u00f4n: Ph\u00e2n t\u00edch d\u1eef li\u1ec7u, To\u00e1n h\u1ecdc, T\u00e0i ch\u00ednh, Kinh t\u1ebf, Khoa h\u1ecdc m\u00e1y t\u00ednh, Khoa h\u1ecdc d\u1eef li\u1ec7u ho\u1eb7c Ph\u00e2n t\u00edch kinh doanh<\/li>\n<\/ul>\n<\/p><\/div><\/div><\/div>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"

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