Gradient qhovntsej thiaj tsis mob tau tsim nyob rau hauv Cauchy xyoo 1847. Méthode générale pour la résolution des systèmes d'équations simultanées. pp. 536–538 Yog xav paub ntxiv txog nws saib ntawm no.
Thaum twg SGD tau tsim?
Cov nyiaj Singapore thawj zaug tau tshaj tawm hauv 1965 tom qab kev tawg ntawm kev sib koom nyiaj txiag ntawm Malaysia thiab Brunei, tab sis tseem tau hloov pauv nrog Brunei duas hauv ob lub tebchaws.
Leej twg invented gradient boosting?
Leej twg tsim cov tshuab gradient boosting? Jerome Friedman, hauv nws daim ntawv hais lus los ntawm 1999 (hloov kho xyoo 2001) hu ua Greedy Function Approximation: A Gradient Boosting Machine, tau qhia lub tshuab gradient boosting, txawm tias lub tswv yim ntawm kev txhawb nqa nws tus kheej tsis yog tshiab.
Puas yog Adas siv stochastic gradient qhovntsej thiaj tsis mob?
Adas yog tus hloov kho kom zoo dua algorithm rau stochastic gradient qhovntsej thiaj tsis mob rau kev kawm sib sib zog nqus qauv. Adas muab cov khoom zoo tshaj plaws ntawm AdaGrad thiab RMSProp algorithms los muab qhov kev ua kom zoo tshaj plaws uas tuaj yeem daws cov gradients sib txawv ntawm cov teeb meem nrov.
Vim li cas thiaj hu ua stochastic gradient qhovntsej thiaj tsis mob?
Lo lus 'stochastic' txhais tau hais tias lub kaw lus lossis txheej txheem uas txuas nrog qhov tshwm sim random. Li no, nyob rau hauv Stochastic Gradient qhovntsej thiaj tsis mob, ob peb cov qauv raug xaiv random es tsis txhob tag nrho cov ntaub ntawv teev rau txhua iteration.
