Video: Cov ntaub ntawv mining tseem hu ua dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov ntaub ntawv mining tab tom nrhiav rau zais, siv tau, thiab muaj peev xwm siv tau cov qauv hauv loj cov ntaub ntawv teeb. Cov ntaub ntawv mining yog kuj hu Raws li Kev Tshawb Fawb Txog Kev Tshawb Fawb, Kev Tshawb Fawb Txog Kev Tshawb Fawb, cov ntaub ntawv / qauv tsom xam, sau cov ntaub ntawv, thiab lwm yam.
Tom qab ntawd, cov ntaub ntawv mining txhais li cas?
Kev txhais ntawm ' Data Mining ' Txhais: Hauv cov lus yooj yim, cov ntaub ntawv mining yog txhais raws li ib tug txheej txheem siv los extract usable cov ntaub ntawv los ntawm ib tug loj txheej ntawm tej raw cov ntaub ntawv . Nws implies tsom xam cov ntaub ntawv qauv nyob rau hauv loj batch ntawm cov ntaub ntawv siv ib los yog ntau tshaj software. Cov ntaub ntawv mining tseem hu ua Knowledge Discovery hauv Cov ntaub ntawv (KDD).
Kuj Paub, vim li cas peb thiaj xav tau cov ntaub ntawv mining? Hauv kev lag luam, data mining yog pab tau rau nrhiav tau cov qauv thiab kev sib raug zoo nyob rau hauv cov ntaub ntawv los pab txiav txim siab zoo dua. ? Cov ntaub ntawv mining pab tsim cov phiaj xwm kev lag luam ntse dua thiab kwv yees cov neeg siv khoom loyalty. Cov ntaub ntawv mining kuj tseem pab cov tsev txhab nyiaj kom paub txog kev ua lag luam credit card cuav.
Hais txog qhov no, leej twg hauv qab no yog lwm lub npe ntawm cov ntaub ntawv mining?
Kev siv kom raug lub sij hawm cov ntaub ntawv mining yog cov ntaub ntawv nrhiav pom. Tab sis lub lub sij hawm yog siv feem ntau rau kev sau, rho tawm, khaws cia, tsom xam, txheeb cais, kev txawj ntse, kev kawm tshuab, thiab kev txawj ntse ua lag luam.
Puas yog datamining txhaum cai?
Datamining tsis yog txhaum cai . Datamining yog txhaum cai thiab TK69 tsis yog datamine.
Pom zoo:
Dab tsi yog cov txiaj ntsig tseem ceeb ntawm kev siv phau ntawv txhais lus cov ntaub ntawv?
Ib phau ntawv txhais lus tsim tau tuaj yeem muab cov koom haum thiab cov lag luam muaj txiaj ntsig ntau, suav nrog: Txhim kho cov ntaub ntawv zoo. Txhim kho kev ntseeg siab ntawm cov ntaub ntawv ncaj ncees. Txhim kho cov ntaub ntawv thiab kev tswj xyuas. Txo cov ntaub ntawv redundancy. Rov qab siv cov ntaub ntawv. Kev sib raug zoo ntawm kev siv cov ntaub ntawv. Kev txheeb xyuas cov ntaub ntawv yooj yim dua. Txhim kho kev txiav txim siab raws li cov ntaub ntawv zoo dua
Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv hauv cov ntaub ntawv mining?
Cia peb tham txog yam ntaub ntawv twg tuaj yeem raug mined: Cov ntaub ntawv tiaj tus. Relational Databases. DataWarehouse. Transactional Databases. Multimedia Databases. Spatial Databases. Lub Sijhawm Series Databases. World Wide Web (WWW)
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Vim li cas cov ntaub ntawv zoo tseem ceeb heev rau kev sau cov ntaub ntawv txheeb cais?
Cov ntaub ntawv muaj txiaj ntsig zoo yuav ua kom muaj txiaj ntsig ntau dua hauv kev tsav lub tuam txhab kev vam meej vim yog kev vam khom ntawm qhov tseeb-raws li kev txiav txim siab, tsis yog kev coj cwj pwm lossis tib neeg kev xav. Ua kom tiav: Xyuas kom tsis muaj qhov khoob ntawm cov ntaub ntawv los ntawm qhov yuav tsum tau sau thiab qhov twg tau sau tiag
Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?
Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj