Dab tsi yog qhov sib txawv hauv cov ntaub ntawv mining?

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Dab tsi yog qhov sib txawv hauv cov ntaub ntawv mining?
Dab tsi yog qhov sib txawv hauv cov ntaub ntawv mining?

Video: Dab tsi yog qhov sib txawv hauv cov ntaub ntawv mining?

Video: Dab tsi yog qhov sib txawv hauv cov ntaub ntawv mining?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
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Dissimilarity Measure Kev ntsuas tus lej sib txawv ntawm ob cov ntaub ntawv sib txawv li caslos ntawm 0 (cov khoom sib xws) mus rau (cov khoom sib txawv)

Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv?

ntsuas qhov tsis sib xws. yog tus lej ntsuas ntawm qhov sib txawv ntawm ob cov ntaub ntawv li cas . qis dua thaum cov khoom zoo sib xws. Yam tsawg kawg qhov tsis sib xws feem ntau yog 0 thaum qhov txwv sab sauv sib txawv nyob ntawm seb muaj pes tsawg qhov sib txawv tuaj yeem ua tau.

Kev ntsuas qhov sib txawv yog dab tsi?

Dissimilarity Measure

Kev ntsuas tus lej ntawm ob cov ntaub ntawv sib txawv li cas. Ntau yam ntawm 0 (cov khoom sib xws) mus rau ∞ (cov khoom sib txawv).

Dab tsi yog qhov sib txawv hauv pawg?

Dissimilarity yuav txhais tau tias qhov kev ncua deb ntawm ob qhov qauv raws li qee qhov kev ntsuas, hauv lwm lo lus, cov qauv no txawv li cas. … Qhov Dissimilarity Performance index kuj txhais tau tias yog qhov feem pua ntawm ib pab pawg uas yuav tau txav mus rau lwm pab pawg yog li cov qauv kom ua tiav qhov kev faib tawm.

Dab tsi yog qhov sib txawv ntawm cov ntaub ntawv cov ntsiab lus?

Dissimilarity rau nominal cwj pwm yog xam raws li qhov piv ntawm tag nrho cov mismatches ntawm ob cov ntaub ntawv cov ntsiab lus rau tag nrho cov yam ntxwv cov cim lossis cov npe ntawm cov khoom. Txhua tus nqi sawv cev rau qee yam qeb, lej, lossis xeev thiab yog li nominal cwj pwm kuj raug hu ua categorical.

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