Cov txheej txheem:
Video: Dab tsi yog qhov yuav tsum tau ua ntawm pawg hauv cov ntaub ntawv mining?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2024-01-18 08:24
Cov kev cai tseem ceeb uas ib pawg algorithm yuav tsum txaus siab yog:
- scalability ;
- soj ntsuam nrog ntau hom cwj pwm;
- nrhiav pom pawg nrog arbitrary zoo;
- yam tsawg kawg nkaus rau kev paub txog kev sau npe los txiav txim qhov kev nkag tsis tau;
- muaj peev xwm daws cov suab nrov thiab outliers;
Tsis tas li ntawd, yuav ua li cas clustering siv nyob rau hauv cov ntaub ntawv mining?
Taw qhia. Nws yog ib cov ntaub ntawv mining txheej txheem siv tso rau cov ntaub ntawv cov ntsiab lus rau hauv lawv cov pab pawg muaj feem xyuam. Ua pawg yog tus txheej txheem ntawm partitioning lub cov ntaub ntawv (los yog khoom) rau hauv tib chav kawm, The cov ntaub ntawv nyob rau hauv ib chav kawm yog ntau zoo ib yam li cov nyob rau hauv lwm yam pawg.
Ib yam li ntawd, clustering siv rau dab tsi? Ua pawg yog ib txoj hauv kev ntawm kev kawm tsis muaj kev saib xyuas thiab yog ib qho txheej txheem rau kev txheeb xyuas cov ntaub ntawv siv hauv ntau teb. Hauv Data Science, peb tuaj yeem siv pawg tsom xam kom tau txais qee qhov kev pom muaj txiaj ntsig los ntawm peb cov ntaub ntawv los ntawm kev pom cov pab pawg twg cov ntaub ntawv cov ntsiab lus poob rau hauv thaum peb siv a pawg algorithm.
Tsuas yog li ntawd, vim li cas Clustering xav tau hauv cov ntaub ntawv tsuas?
Clustering yog qhov tseem ceeb hauv cov ntaub ntawv tsom xam thiab cov ntaub ntawv mining daim ntawv thov. Nws yog lub luag haujlwm ntawm kev ua ib pawg ntawm cov khoom kom cov khoom hauv tib pab pawg zoo sib xws ntau dua li cov hauv lwm pab pawg ( pawg ). Partitioning yog lub centroid raws pawg ; tus nqi ntawm k-mean yog teem.
Dab tsi yog clustering thiab nws hom hauv cov ntaub ntawv mining?
Ua pawg cov txheej txheem yog siv los txheeb xyuas cov pab pawg ntawm cov khoom zoo sib xws hauv ntau qhov sib txawv cov ntaub ntawv cov khoom sau los ntawm kev lag luam xws li kev lag luam, bio-kev kho mob thiab geo-spatial. Lawv txawv hom ntawm pawg cov txheej txheem, suav nrog: cov txheej txheem muab faib. Hierarchical pawg . Fuzzy pawg.
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
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Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv hauv cov ntaub ntawv mining?
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