Video: Dab tsi ua kom muaj nuj nqi ua hauv neural network?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ua kom muaj nuj nqi yog cov lej sib npaug uas txiav txim siab qhov tso zis ntawm a neural network . Cov muaj nuj nqi yog txuas rau txhua tus neuron hauv network , thiab txiav txim siab seb nws yuav tsum tau ua haujlwm ("ntev") lossis tsis, nyob ntawm seb txhua tus neuron cov input muaj feem xyuam rau tus qauv kev twv ua ntej.
Yog li ntawd, lub luag haujlwm ntawm kev ua haujlwm hauv neural network yog dab tsi?
Kev txhais ntawm ua kom muaj nuj nqi :- Ua kom muaj nuj nqi txiav txim, seb a neuron yuav tsum tau qhib los yog tsis yog los ntawm kev xam qhov hnyav sum thiab ntxiv kev tsis ncaj ncees nrog nws. Lub hom phiaj ntawm cov ua kom muaj nuj nqi yog ua kom paub tsis-linearity rau hauv cov zis ntawm a neuron.
Ib yam li ntawd, dab tsi ua kom muaj nuj nqi thiab vim li cas lawv thiaj li yuav tsum tau ua? Ua kom muaj nuj nqi Nws yog ib qho tseem ceeb heev rau Artificial Neural Network kom kawm thiab ua kom nkag siab txog qee yam nyuaj thiab Non-linear complex functional mappings ntawm cov khoom siv thiab cov lus teb sib txawv. Lawv qhia cov khoom tsis-linear rau peb Network.
Lub hom phiaj ntawm kev ua kom muaj nuj nqi yog dab tsi?
Cov lub hom phiaj ntawm ib ua kom muaj nuj nqi yog yuav ntxiv ib co yam tsis-linear cuab yeej rau lub muaj nuj nqi , uas yog neural network. Yog tsis muaj ua kom muaj nuj nqi , lub neural network yuav ua tau tsuas yog linear mappings los ntawm inputs x mus rau outputs y.
Dab tsi yog qhov ua kom muaj nuj nqi hauv kev kawm tob?
Hauv ib neural network , cov ua kom muaj nuj nqi yog lub luag hauj lwm rau transforming lub summed weighted input los ntawm lub node rau hauv ua kom ntawm node los yog tso zis rau qhov input. Nyob rau hauv no nyeem, koj yuav pom cov rectified linear ua kom muaj nuj nqi rau tob kawm neural networks.
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