Cov txheej txheem:
Video: Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv hauv cov ntaub ntawv mining?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
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)
Nyob rau hauv txoj kev no, dab tsi yog hom ntaub ntawv hauv cov ntaub ntawv mining?
Hom Cov Ntaub Ntawv
- Relational databases.
- Cov ntaub ntawv warehouses.
- Advanced DB thiab cov ntaub ntawv khaws cia.
- Object-oriented thiab object-relational databases.
- Transactional thiab Spatial databases.
- Heterogeneous thiab legacy databases.
- Multimedia thiab streaming database.
- Text databases.
Ib tug kuj yuav nug, hom ntaub ntawv sib txawv yog dab tsi? Muaj ob hom ntaub ntawv qhov chaw : tshuab cov ntaub ntawv thiab ua ntaub ntawv cov ntaub ntawv . Txawm hais tias ob qho tib si muaj cov ntaub ntawv zoo sib xws ntawm cov qhov chaw ntawm cov ntaub ntawv , lawv txawv ntawm qhov kev khaws cov ntaub ntawv no. Vim tias qhov sib txawv no, lawv tau siv qee yam txawv kev coj ncaj ncees.
Tom qab ntawd, cov ntaub ntawv sib txawv yog dab tsi?
Hom Cov Ntaub Ntawv & Kev ntsuas qhov ntsuas: Nominal, Ordinal, Interval thiab Ratio. Hauv kev txheeb cais, muaj plaub cov ntaub ntawv ntsuas ntsuas: nominal, ordinal, interval thiab ratio. Cov no yog txoj hauv kev yooj yim rau sub-categorize ntau hom ntaub ntawv (Ntawm no yog ib qho piv txwv ntawm statistical hom ntaub ntawv ).
Lub hom phiaj ntawm cov ntaub ntawv mining yog dab tsi?
Cov ntaub ntawv mining , kuj hu ua cov ntaub ntawv los yog kev paub nrhiav pom, yog tus txheej txheem ntawm kev txheeb xyuas cov ntaub ntawv thiab hloov nws mus rau hauv kev pom uas qhia txog kev txiav txim siab ua lag luam. Cov ntaub ntawv mining software enables cov koom haum los soj ntsuam cov ntaub ntawv los ntawm ntau qhov chaw txhawm rau txhawm rau txheeb xyuas cov qauv.
Pom zoo:
Dab tsi yog qhov txawv ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb?
Qhov sib txawv loj ntawm XML cov ntaub ntawv thiab cov ntaub ntawv sib txheeb Ib daim ntawv XML muaj cov ntaub ntawv hais txog kev sib raug zoo ntawm cov ntaub ntawv rau ib leeg nyob rau hauv daim ntawv ntawm hierarchy. Nrog rau tus qauv kev sib raug zoo, tib hom kev sib raug zoo uas tuaj yeem txhais tau yog cov lus niam txiv thiab cov rooj sib raug 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 sib sau ua ke thiab cov ntaub ntawv tsis sib xws?
Kev sib sau cov ntaub ntawv yog sau thiab sau cov ntaub ntawv; kom disaggregate cov ntaub ntawv yog rhuav tshem cov ntaub ntawv sib sau ua ke rau hauv cov khoom siv lossis cov ntaub ntawv me me
Dab tsi yog qhov txawv ntawm cov ntaub ntawv hom thiab qhov sib txawv?
Ib qho kev sib txawv yuav tsum muaj cov ntaub ntawv sib txuas nrog nws, piv txwv li nws tuaj yeem muaj cov ntaub ntawv xws li cov lej, lej lej, cov cim thiab lwm yam. Qhov sib txawv ntawm hom Integer khaws cov lej suav thiab tus cim typevariable khaws cov cim tus nqi. Thawj qhov sib txawv ntawm ntau hom ntaub ntawv yog lawv qhov loj me me
Dab tsi yog qhov sib txawv ntawm cov qauv siv nyob rau hauv cov ntaub ntawv ntawm cov khoom oriented qauv?
Cov qauv tseem ceeb ntawm cov qauv uas siv rau hauv cov khoom siv yog: Siv cov qauv qauv, Cov qauv qauv (zoo li qub) cov qauv, Cov qauv coj tus cwj pwm (dynamic) khoom qauv