SVM ua haujlwm li cas hauv Matlab?
SVM ua haujlwm li cas hauv Matlab?

Video: SVM ua haujlwm li cas hauv Matlab?

Video: SVM ua haujlwm li cas hauv Matlab?
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Koj ua tau siv a txhawb vector tshuab ( SVM ) thaum koj cov ntaub ntawv muaj raws nraim ob chav kawm. Ib SVM cais cov ntaub ntawv los ntawm kev nrhiav qhov zoo tshaj plaws hyperplane uas cais tag nrho cov ntaub ntawv cov ntsiab lus ntawm ib chav kawm los ntawm cov chav kawm. Qhov zoo tshaj plaws hyperplane rau ib SVM txhais tau hais tias ib qho uas muaj qhov loj tshaj plaws ntawm ob chav kawm.

Tsis tas li ntawd, SVM Matlab yog dab tsi?

Ib qho kev txhawb nqa vector tshuab ( SVM ) yog ib tug saib xyuas kev kawm algorithm uas yuav siv tau rau binary classification los yog regression. Txhim kho qhov teeb meem quadratic optimization kom haum rau qhov zoo tshaj plaws hyperplane los faib cov yam ntxwv hloov pauv mus rau ob chav kawm.

SVM ua li cas? Txhawb Vector Machine( SVM ) - Cov Txheej Txheem. Kev kawm tshuab suav nrog kwv yees thiab cais cov ntaub ntawv thiab rau ua yog li peb ntiav ntau lub tshuab kawm algorithms raws li cov ntaub ntawv. Lub tswv yim ntawm SVM yog qhov yooj yim: Lub algorithm tsim ib kab lossis ib lub dav hlau uas sib cais cov ntaub ntawv rau hauv cov chav kawm.

Hais txog qhov no, SVM ua haujlwm li cas?

SVM ua haujlwm los ntawm daim ntawv qhia cov ntaub ntawv mus rau qhov chaw siab-dimensional feature kom cov ntaub ntawv cov ntsiab lus tuaj yeem categorized, txawm tias cov ntaub ntawv tsis yog lwm yam sib cais. Ib qho kev sib cais ntawm pawg tau pom, tom qab ntawd cov ntaub ntawv tau hloov pauv mus rau hauv txoj hauv kev uas lub separator tuaj yeem raug kos raws li lub dav hlau.

SVM yog dab tsi?

SVM Scoring Muaj nuj nqi A kawm txhawb Vector Tshuab muaj ib qhab nias function uas xam a qhab nias rau cov tswv yim tshiab. A Support Vector Machine yog binary (ob chav kawm) classifier; yog tias cov zis ntawm lub qhab nias muaj nuj nqi yog qhov tsis zoo ces cov tswv yim raug cais raws li cov chav kawm y = -1.

Pom zoo: