Video: Yuav ua li cas pub rau neural network ua haujlwm?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov feedforward neural network yog thawj thiab yooj yim tshaj ntawm cov khoom siv dag zog neural network npaj. Hauv no network , cov ntaub ntawv txav mus rau hauv ib qho kev taw qhia nkaus xwb, pem hauv ntej , los ntawm cov input nodes, los ntawm cov zais nodes (yog tias muaj) thiab rau cov zis nodes. Nyob ntawd yog tsis muaj cycles lossis loops hauv lub network.
Ib yam li ntawd, feedforward neural networks siv rau dab tsi?
Lub hom phiaj tseem ceeb ntawm a feedforward network yog kwv yees qee qhov ua haujlwm f*. Piv txwv li, lub regression muaj nuj nqi y = f * (x) maps ib input x rau tus nqi y. A feedforward network txhais ib daim ntawv qhia y = f (x; θ) thiab kawm txog tus nqi ntawm qhov tsis muaj θ uas ua rau muaj kev ua haujlwm zoo tshaj plaws.
Tsis tas li ntawd, ib txheej feedforward neural network yog dab tsi? A feedforward neural network yog ib qho khoom cuav neural network nyob rau hauv kev sib txuas ntawm cov units tsis tsim ib lub voj voog. Yam yooj yim tshaj plaws neural network yog a ib leeg - txheej kev xav network , uas muaj a ib txheej ntawm cov zis nodes; cov inputs yog pub ncaj qha rau cov outputs ntawm ib tug series ntawm luj.
Khaws qhov no hauv kev txiav txim siab, dab tsi yog pub rau backpropagation neural network?
A feedforward neural network yog ib qho khoom cuav neural network qhov twg cov nodes yeej tsis tsim ib lub voj voog. Hom no neural network muaj cov txheej txheem nkag, cov txheej txheem zais, thiab cov txheej txheem tso tawm. Nws yog thawj thiab yooj yim tshaj plaws ntawm cov khoom siv dag zog neural network.
Lub neural network twg yog qhov yooj yim tshaj plaws hauv lub network uas tsis muaj cov txheej txheem zais ntawm cov tswv yim thiab cov txheej txheem tso tawm thiab cov ntaub ntawv ntws mus rau pem hauv ntej?
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