Knn puas yog kev faib algorithm?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

KNN algorithm yog ib qho yooj yim tshaj plaws kev faib algorithm thiab nws yog ib qho kev kawm siv ntau tshaj plaws algorithms . KNN yog ib qho kev kawm tsis yog parametric, tub nkeeg kawm algorithm . Nws lub hom phiaj yog siv lub database uas cov ntsiab lus cov ntaub ntawv tau muab cais ua ob peb chav kawm los kwv yees qhov kev faib tawm ntawm qhov piv txwv tshiab.

Tsis tas li ntawd, Knn puas yog pawg algorithm?

Hauv kev kawm tshuab, tib neeg feem ntau tsis meej pem nrog k- lus ( k- txhais tau tias kev sib koom ua ke ) thiab KNN (k-Nyob ze ze). K- txhais tau tias yog ib qho kev kawm uas tsis muaj kev saib xyuas algorithm siv rau pawg teeb meem thaum KNN yog kev kawm saib xyuas algorithm siv rau kev faib thiab regression teeb meem.

Tsis tas li ntawd, puas yog KNN algorithm saib xyuas lossis tsis saib xyuas? KNN sawv cev a saib xyuas kev faib tawm algorithm uas yuav muab cov ntsiab lus tshiab raws li tus lej k lossis cov ntsiab lus ze tshaj plaws, thaum k- txhais tau tias kev sib koom ua ke yog ib qho tsis saib xyuas pawg algorithm uas sib sau thiab pab pawg cov ntaub ntawv rau hauv k tus lej ntawm pawg.

Kuj nug, Knn puas tuaj yeem siv rau kev faib ntau hom?

Cov k- nyob ze ze algorithm ( KNN ) yog ib qho intuitive tab sis zoo siv tshuab kawm txoj kev los daws cov pa kev faib tawm teeb meem. Hauv daim ntawv no, peb tawm tswv yim lwm yam KNN -raws li kev kawm algorithm rau ntau - daim ntawv sau npe.

Puas yog K txhais tau tias pawg saib xyuas?

K - txhais tau tias yog a pawg algorithm uas sim muab faib cov ntsiab lus rau hauv K teeb ( pawg ) xws li cov ntsiab lus hauv txhua pawg nyiam nyob ze ib leeg. Nws yog saib xyuas vim tias koj tab tom sim faib cov ntsiab lus raws li kev paub cais ntawm lwm cov ntsiab lus.