Video: Dab tsi yog cov ntaub ntawv mining kab lus?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Sau npe yuav txuas ntxiv nyeem qhov no tsab xov xwm
Cov ntaub ntawv mining yog cov txheej txheem automated ntawm sorting los ntawm loj cov ntaub ntawv teeb tsa los txheeb xyuas cov xwm txheej thiab cov qauv thiab tsim kom muaj kev sib raug zoo, los daws cov teeb meem kev lag luam lossis tsim cov hauv kev tshiab los ntawm kev txheeb xyuas cov cov ntaub ntawv
Tib neeg kuj nug, cov ntaub ntawv mining yog dab tsi?
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, dab tsi yog cov ntaub ntawv mining thiab vim li cas nws tseem ceeb? Rau kev lag luam, cov ntaub ntawv mining yog siv los tshawb pom cov qauv thiab kev sib raug zoo hauv cov cov ntaub ntawv txhawm rau pab txiav txim siab ua lag luam zoo dua. Cov ntaub ntawv mining tuaj yeem pab pom kev muag khoom, tsim cov phiaj xwm kev lag luam ntse dua, thiab kwv yees qhov tseeb ntawm cov neeg siv khoom ncaj ncees.
Kuj kom paub, qhov teeb meem ntawm cov ntaub ntawv mining yog dab tsi?
pluag cov ntaub ntawv zoo xws li nrov nrov cov ntaub ntawv , qias neeg cov ntaub ntawv , tsis muaj nuj nqis, inexact or incorrect values, inadequate cov ntaub ntawv loj thiab tsis zoo sawv cev nyob rau hauv cov ntaub ntawv kev kuaj. Efficiency thiab scalability ntawm cov ntaub ntawv mining algorithms kom zoo rho tawm cov ntaub ntawv los ntawm loj npaum li cas ntawm cov ntaub ntawv hauv databases.
Dab tsi yog cov ntaub ntawv mining thiab hom?
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 tseem hu ua Knowledge discovery, Knowledge extraction, cov ntaub ntawv / qauv tsom xam, sau cov ntaub ntawv, thiab lwm yam.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
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)
Thaum cov lus tau hla tawm cov ntaub ntawv kuaj xyuas feem ntau nthuav tawm cov ntawv sau thawj nrog kev pab ntawm dab tsi?
Infrared luminescence yog siv rau: Qhia tawm cov ntawv sau uas tau muab tshem tawm THIAB kuaj pom yog tias ob tus lej sib txawv tau siv rau hauv kev sau ntawv. Cov kws tshuaj xyuas cov ntaub ntawv feem ntau nthuav tawm cov ntawv sau thawj ntawm cov lus uas tau hla nrog kev pab ntawm: Infrared tawg
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
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