Txhua lub dav hlau tuaj yeem sau tau raws li cov txheej txheem points x txaus siab w⋅x+b=0. Ua ntej, peb paub txog lwm cov cim rau cov khoom lag luam, kab lus siv w⋅x es tsis txhob wTx.
Yuav ua li cas xam hyperplane?
Ib lub dav hlau yog qhov dav dav dav dav ntawm cov kab thiab dav hlau. Qhov sib npaug ntawm lub hyperplane yog w · x + b=0, qhov twg w yog vector ib txwm rau lub dav hlau thiab b yog qhov offset.
Hyperplane thiab margin hauv SVM yog dab tsi?
Ib qho SVM kev cob qhia algorithm yog siv rau cov ntaub ntawv qhia kev cob qhia nrog cov ntaub ntawv hais txog cov chav kawm uas txhua tus datum (lossis vector) belongs rau thiab ua li ntawd tsim kom muaj ib qho hyperplane (piv txwv li, qhov sib txawv lossis geometric margin) cais ob chav.
SVM suav nyiaj li cas?
Cov npoo yog xam raws li qhov kev ncua deb ntawm kab mus rau cov ntsiab lus ze tshaj plaws. Tsuas yog cov ntsiab lus no muaj feem cuam tshuam rau kev txhais cov kab thiab hauv kev tsim kho ntawm cov khoom cais. Cov ntsiab lus no hu ua kev txhawb nqa vectors.
Dab tsi yog qhov pom kev sib cais hyperplane hauv SVM?
Nyob rau hauv qhov teeb meem kev faib tawm binary, muab cov ntaub ntawv sib cais sib cais, qhov pom kev sib cais hyperplane yog tus uas raug faib tag nrho cov ntaub ntawv thaum nyob deb tshaj plaws ntawm cov ntaub ntawv cov ntsiab lus … Qhov pom kev sib cais hyperplane yog ib lub tswv yim tseem ceeb tom qab kev txhawb nqa vector tshuab.
