Burburka Miisaanka iyo Joogteynta L2
Burburka culeysku waa farsamo fudud, xoog badan oo u rujinaysa miisaannada modelka xagga eber inta lagu jiro tababarka, taasoo ka niyad jabinaysa inuu aad ugu tiirsanaado sifo kasta.
Dulmar
It reduces overfitting and is one of the most widely used regularizers in deep learning.
quusid qoto dheer
Marka modelku tabobarto, waxa uu ku dhegi karaa qaylada xogta isaga oo kori doona miisaanyo waaweyn oo si fiican loo habeeyey kuwaas oo ku habboon tababarka si qumman laakiin guud ahaan si liidata. Joogteynta L2 waxay la dagaalantay tan iyadoo ku daraya ganaax u dhigma wadarta culeyska labajibaaran shaqada luminta. Hagaajinta hadda waxay leedahay laba gool: ku habboon xogta oo ha yaraato miisaanka, si ay u dejiso xalal fudud oo adag. Miisaanka qudhunka waa fikradda si dhow loola xiriiriyo ee lagu dhimayo miisaan kasta qayb yar oo tallaabo kasta oo cusbooneysiin ah. Marka la eego farcanka gradient ee cad labaduba waa xisaab ahaan u dhigma, laakiin la qabsiga la qabsiga sida Adam way ku kala duwan yihiin, waana sababta AdamW loogu soo bandhigay inuu ka saaro suuska cusboonaysiinta ku salaysan gradient oo uu ka dhigo inuu u dhaqmo si sax ah.
Aragtida Farsamada
Joogteynta L2 waxay ku daraysaa waqtiyada lambda wadarta miisaan labajibaaran luminta, sidaa darteed jaanistiisu waxay ku daraysaa erey u dhigma miisaan kasta, isaga oo u jiidaya eber. Qulqulka miisaanka oo go'ay ayaa taa beddelkeeda ku dhufanaya miisaan kasta qodob sida (1 laga jaray barashada_rate times lambda) si toos ah. Hababka la-qabsiga, isku-xidhka L2 ee khasaaraha waxay u oggolaanaysaa isku-dheellitirka halbeegga-bar-ku-dhigga ciqaabta, sidaa darteed AdamW wuxuu si gooni ah u dabaqayaa dhimista, dib u soo celinta lebiskii loogu talagalay xagga culeysyada yaryar.
Saamaynta Istiraatijiyadeed
Go'aamo cad
Waxay kaa caawinaysaa inaad kala saartid sheegashooyinka farsamada cad iyo luqadda suuq-geynta.
Qiimaha iyo miisaaniyada
Waxaad waydiin kartaa su'aalo fulineed oo wanaagsan ka hor inta aadan lacag ama waqti bixin.
Kooxda iyo socodka shaqada
Kooxaha fahamka la wadaago waxay sameeyaan wax soo saar, siyaasad, iyo go'aano waxbarasho oo wanaagsan.
Mustaqbalka Burburka Miisaanka iyo Joogteynta L2
Miisaanka qudhunka ayaa weli ah qayb ka mid ah cuntooyinka tababarka ee moodooyinka luqadaha waaweyn iyo beddelayaasha aragga, AdamWna hadda waa hagaajinta caadiga ah iyaga. Cilmi-baadhistu waxay ku sii socotaa sida qudhunku ula falgalo jadwallada heerka-wax-barashada, lakabyada caadiga ah, iyo miisaanka moodeelka, tan iyo markii ay awooddeeda wax-ku-oolka ahi isbedesho marka moodooyinka koraan. Filo in badan oo mabda'a leh, oo laga yaabo in lakab kasta ama jadwal-ogyahay hagaajinta suuska marka ay baalmarto baaritaanka hyperparameterka tooska ah iyo daraasadaha-sharciga.
Dhaqangelinta Adduunka-dhabta ah
Ku darida burburka miisaanka ee PyTorch's AdamW ama SGD optimizer marka la tababarayo kala-soocida sawirka si loo xakameeyo ku habboonaanta
Hagaajinta isku-dhafka lambda ee dib-u-celinta cirifka, qaabka tooska ah ee L2-ciqaab ee caadiga ah, si loo xasiliyo saadaasha sifooyinka la xidhiidha
Qaabka luqadda weyn ee ka hor-tababarida cuntada ee dejisa qudhunka miisaanka yar (badanaa agagaarka 0.1) oo ay weheliso jadwalka heerka-waxbarasho
Isku darka qudhunka miisaanka iyo kordhinta xogta iyo joojinta si looga ilaaliyo qaabka sawir-caafimaad ee yar inuu xafido baarista tababarka xaddidan
Khatarta & Dariiqyada Ilaalada
Kooxo kala duwan ayaa laga yaabaa inay isla erey u isticmaalaan si kala duwan, marka hore u qeex baaxadda.
Tilmaamaha ayaa u ekaan kara kuwo xooggan halka waxqabadka dhabta ah ee dunidu aanu sinnayn.
In la iska indho tiro tayada xogta iyo qorshayaasha qiimayntu waxay inta badan abuurtaa natiijooyin jilicsan.
Qorshe Hawleedka Dhaqangelinta
Ka bilow qeexidda luqadda cad ee natiijada aad u baahan tahay.
Dooro hal cabbir guusha iyo hal xaalad guuldarro ka hor tijaabada.
Ku orod duuliye yar oo wata xogta matale, ee ma aha bandhig muuqaal ah.
Dukumeenti meesha uu Miisaanka Qurunka iyo Joogteynta L2 caawinayo iyo meelaha hababka fudud ay ka fiican yihiin.
Sii wad Sahaminta
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Hagaha xiga
Joogteynta
Su'aalaha soo noqnoqda
What is Weight Decay and L2 Regularization?
Burburka culeysku waa farsamo fudud, xoog badan oo u rujinaysa miisaannada modelka xagga eber inta lagu jiro tababarka, taasoo ka niyad jabinaysa inuu aad ugu tiirsanaado sifo kasta. Waxay yaraynaysaa kufilanka xad-dhaafka ah oo waa mid ka mid ah kuwa sida aadka ah loo isticmaalo si joogto ah waxbarashada qoto dheer.
Muxuu joogtaynta L2 ku darayaa shaqada luminta?
Joogteynta L2 waxay ku daraysaa waqtiyada lambda wadarta miisaan labajibbaaran, ciqaabta miisaanka waaweyn iyo dhiirigelinta xalalka fudud ee yaryar.
Waa maxay dhibka ugu weyn ee qudhunka miisaanku ka caawiyaa ka hortagga?
Marka la yareeyo miisaanka, qudhunka culeysku wuxuu ka niyad-jabiyaa qaabka inuu ku habboon yahay buuqa, hagaajinta guud ahaan xogta cusub.
Jihogee ayuu qudhunka miisaanku u riixaa miisaanka tusaalaha?
Qulqulka culeysku wuxuu hoos u dhigaa culeyska ilaa eber cusbooneysiin kasta, waana sababta mararka qaarkood loogu sifeeyo 'quruxsan' miisaanka.
Waa maxay sababta AdamW loo soo bandhigay?
Aadan dhexdiisa, laalaabida L2 ee khasaaraha waxay si xun ula falgashaa cabirka halbeegga; AdamW si gooni gooni ah ayuu u quseeyaa qudhunka si uu u soo celiyo dhimistii labiska ee loogu talagalay.
Marka la eego faraca hoose ee stochastic stochastic, sidee L2 joogtaynta iyo qudhunka miisaanka ula xidhiidhaan?
Iyada oo SGD cad, ku darista ganaax L2 khasaaraha waxay soo saartaa cusboonaysiin la mid ah miisaanka si toos ah u dhimaya, markaa labaduba waa u dhigma.