Video: Cov ntaub ntawv txheeb xyuas kev ua si yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kev analytics yog ib qho kev sau los ntawm cov ntsiab lus, keeb kwm, kev txheeb cais uas thaum siv tau zoo tuaj yeem muab kev sib tw kom zoo dua rau pab pawg lossis ib tus neeg. Nyob rau hauv teb kev tshuaj ntsuam deals nrog kev txhim kho kev ua tau zoo ntawm cov pab pawg thiab cov players. Nws khawb tob rau hauv cov yam xws li kev ua si tactics thiab cov neeg ua si qoj.
Ib yam li ntawd, koj tuaj yeem nug, lub hom phiaj ntawm kev txheeb xyuas kev ua si yog dab tsi?
Kev analytics hais txog kev siv cov ntaub ntawv thiab kev txheeb xyuas qib siab los ntsuas kev ua tau zoo thiab txiav txim siab paub, hauv lwm yam kom tau txais kev sib tw kev ua si qhov zoo. Kev analytics , thaum siv tau zoo, tuaj yeem ua rau muaj txiaj ntsig zoo rau kev sib tw rau ib pab neeg lossis ib tus neeg.
Ib tug kuj yuav nug, dab tsi yog cov ntaub ntawv thiab analytics? Cov ntaub ntawv analytics yog kev tshawb fawb ntawm kev txheeb xyuas raw cov ntaub ntawv txhawm rau txiav txim siab txog cov ntaub ntawv ntawd. Muaj ntau cov txheej txheem thiab txheej txheem ntawm cov ntaub ntawv analytics tau automated rau hauv cov txheej txheem mechanical thiab algorithms uas ua haujlwm dhau raw cov ntaub ntawv rau tib neeg noj.
Tsis tas li ntawd, kev txheeb xyuas ua haujlwm hauv kev ua kis las?
Analytics muaj ntau daim ntawv thov nyob rau hauv ib kev ua si ib puag ncig, suav nrog kev tswj hwm tus kheej thiab pab pawg ua haujlwm. Cov kws qhia tuaj yeem siv cov ntaub ntawv los txhim kho cov kev tawm dag zog rau lawv cov neeg ua si thiab tsim cov phiaj xwm kev noj haus kom ua kom lub cev muaj zog. Analytics kuj tseem siv tau rau hauv kev tsim tactics thiab pab pawg tswv yim.
Cov kws tshuaj ntsuam xyuas cov ntaub ntawv kis las ua tau ntau npaum li cas?
Nyiaj hli a Sports Data Analyst Tsis tas li ntawd, US Bureau of Labor Statistics (BLS) tau tshaj tawm tias kev tswj hwm cov kws tshuaj ntsuam , Advertising/promotions managers, thiab sales managers with related experience in the industry tuaj yeem ua nruab nrab ntawm $ 92, 000 thiab $ 121, 000, thaum tshawb fawb kev lag luam cov kws tshuaj ntsuam ua qhov nruab nrab $63,120.
Pom zoo:
Dab tsi yog cov ntaub ntawv phau ntawv txhais lus hauv kev txheeb xyuas kev lag luam?
Cov Ntawv Txhais Lus Cov Ntaub Ntawv yog RML cov qauv ntaub ntawv uas khaws cov ntsiab lus ntawm qib teb txog cov ntaub ntawv hauv ib qho system lossis cov tshuab. Thaum lub sij hawm qhov yuav tsum tau ua, lub hom phiaj tsis yog ntawm cov ntaub ntawv tiag tiag hauv cov ntaub ntawv lossis kev tsim qauv tsim nyog los siv cov khoom lag luam cov ntaub ntawv hauv cov ntaub ntawv
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Dab tsi yog cov ntaub ntawv phau ntawv txhais lus hauv kev txheeb xyuas thiab tsim qauv?
Cov ntaub ntawv phau ntawv txhais lus. Los ntawm Systems Analysis and Design: A Structured Approach: A data Dictionary is a collection of data about data. Nws tuav cov ntaub ntawv hais txog kev txhais, qauv, thiab kev siv ntawm txhua cov ntaub ntawv uas lub koom haum siv. Muaj ntau tus cwj pwm uas yuav khaws cia txog cov ntaub ntawv keeb
Cov kauj ruam rau kev txheeb xyuas cov ntaub ntawv yog dab tsi?
Nkag siab txog 4 Cov Kauj Ruam ntawm Cov Ntaub Ntawv Validation Kauj Ruam 1: Qhia Txog Kev Npaj. Tsim ib txoj hauv kev rau kev txheeb xyuas cov ntaub ntawv yog txoj hauv kev zoo tshaj plaws los ua kom qhov project khiav. Kauj ruam 2: Validate Database. Cov kauj ruam ntawm kev ntsuam xyuas thiab kev siv tau no ua kom ntseeg tau tias tag nrho cov ntaub ntawv siv tau tam sim no los ntawm qhov chaw mus rau lub hom phiaj. Kauj ruam 3: Validate Data Formatting. Kauj Ruam 4: Sampling
Dab tsi ntawm cov hauv qab no yog cov txheej txheem kev tshuaj xyuas cov ntaub ntawv hauv kev tshawb fawb zoo?
Cov txheej txheem kev txheeb xyuas cov ntaub ntawv feem ntau siv yog: Kev tsom xam cov ntsiab lus: Qhov no yog ib txoj hauv kev zoo tshaj plaws los tshuaj xyuas cov ntaub ntawv zoo. Kev txheeb xyuas cov lus piav qhia: Txoj kev no yog siv los txheeb xyuas cov ntsiab lus los ntawm ntau qhov chaw, xws li kev xam phaj ntawm cov neeg teb, kev soj ntsuam los ntawm thaj chaw, lossis kev tshawb fawb