Stochastic Gradient Kumanuka hamwe na Momentum
Momentum ni uguhinduranya kumanuka kumanuka ukusanya impuzandengo yikigereranyo cya gradients zashize, ukareka optimizasiyo ikazunguruka vuba binyuze mubibaya no kugabanya ihungabana.
Incamake
Momentum ni uguhinduranya kumanuka kumanuka ukusanya impuzandengo yikigereranyo cya gradients zashize, ukareka optimizasiyo ikazunguruka vuba binyuze mubibaya no kugabanya ihungabana. Nimwe mumayeri akoreshwa cyane mumahugurwa yimbitse.
Stochastic Gradient Kumanuka hamwe na Momentum yicaye mubikoresho bya AI. Iyo ubisobanukiwe, izindi ngingo za AI zoroha gusuzuma no kugereranya.
Kwibira cyane
Ikibaya cya stochastic gradient descente (SGD) ivugurura ibipimo ukandagira mucyerekezo giteganye na mini-batch ya gradient. Ahantu nyaburanga hameze nkimigezi miremire, ifunganye, iyi zig-zag hejuru yinkuta zihanamye mugihe zigenda zinyerera hasi. Momentum, ikunzwe na Polyak nyuma na Rumelhart na bagenzi be, ikosora ibi mukubungabunga umuvuduko wihuta: buri ntambwe ihuza gradient nshya nigice (coefficient deux, akenshi 0.9) yumuvuduko wabanjirije. Icyerekezo gihoraho icyerekezo gishimangira kandi cyihuta, mugihe ibice bihindagurika bihagarika igice. Ikigereranyo cyumubiri ni umupira uremereye umanuka epfo: wubaka umuvuduko muburyo butajegajega kandi ntushobora gutandukanywa n urusaku rwinshi, rutanga guhuza byihuse, byoroshye kuruta vanilla SGD.
Ubushishozi
Ivugurura rituma umuvuduko v uvugururwa nka v = beta * v + gradient, hanyuma ibipimo bigendana no gukuramo igipimo cyo kwiga inshuro v. Hamwe na coefficient beta yumuvuduko, intambwe ifatika mubyerekezo bihamye yongerwaho hafi kubintu 1 / (1 - beta); kuri beta = 0.9 ibyo bikubye inshuro icumi. Iyi ni mibare ifite uburemere buringaniye buringaniye bwa gradients, koroshya urusaku ruto mugihe urinda icyerekezo cyamanuka.
Kumenya Stochastic Gradient Kumanuka hamwe na Momentum
Kugirango wubake byimbitse, fata Stochastic Gradient Descent hamwe na Momentum nkicyitegererezo gikora, ntabwo ari ikintu kimwe. Sobanura ibyifuzwa, usobanure neza ibitekerezo, kandi utandukanye ibyo sisitemu ishobora gukora byizewe nibisaba guca imanza zinzobere.
Mu myitozo, amakipe akomeye akoresha Stochastic Gradient Descent hamwe na Momentum yubaka icyitegererezo gikomeye cyibitekerezo, hanyuma ushushanye izo moderi kubibuza umusaruro. Bandika ibipimo ngenderwaho byerekana intsinzi, bagerageza kurwanya amakuru afatika hamwe nakazi keza, kandi bagasubiramo bashingiye kubikorwa byagaragaye ko batsinzwe aho gutsinda inshuro imwe. Aha niho imyumvire yubumenyi ihinduka mubushobozi burambye kubicuruzwa, politiki, nibikorwa.
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza. Igihe kimwe, Amakipe atandukanye arashobora gukoresha ijambo rimwe muburyo butandukanye, sobanura intera hakiri kare. Uburyo bukomeye cyane ni uguhuza umuvuduko wikigereranyo hamwe na disipuline yimiyoborere: kuyobora abaderevu, gufata ibimenyetso, gutangaza ibyemezo byicyemezo, no gukomeza kuvugurura uburyo bwo kwirinda nkimyitwarire yicyitegererezo, ibyo abakoresha bategereje, nibisabwa n'amategeko bigenda bihinduka.
Ingaruka z'Ingamba
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza.
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe.
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga.
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga. Mubikorwa byujuje ubuziranenge, ibi bihindurwa mumategeko agenga imikorere, imipaka nyirubwite, hamwe n'imihango yo gusubiramo kenshi kugirango amakipe ashobore kwigirira ikizere aho gupima ibidasobanutse.
Gushyira mu bikorwa Isi
Guhugura imiyoboro yimbitse nka ResNet, aho SGD ifite umuvuduko 0.9 ni resept isanzwe.
Kugereranya urusaku rwinshi rugereranya mugihe ukoresheje mini-mato.
Guhunga ubutumburuke bwibibanza byaho bitwara umuvuduko mukarere.
Gukora nkijambo ryihuta imbere muburyo bwo guhuza n'imikorere nka Adam na RMSprop.
Uburyo bwo Gushyira mu bikorwa
Stochastic Gradient Kumanuka hamwe na Momentum mubikorwa
Guhugura imiyoboro yimbitse nka ResNet, aho SGD ifite umuvuduko 0.9 ni resept isanzwe.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Stochastic Gradient Kumanuka hamwe na Momentum mubikorwa
Kugereranya urusaku rwinshi rugereranya mugihe ukoresheje mini-mato.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Stochastic Gradient Kumanuka hamwe na Momentum mubikorwa
Guhunga ubutumburuke bwibibanza byaho bitwara umuvuduko mukarere.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Stochastic Gradient Kumanuka hamwe na Momentum mubikorwa
Gukora nkijambo ryihuta imbere muburyo bwo guhuza n'imikorere nka Adam na RMSprop.
Amakipe akunze kubona umusaruro ushimishije mugihe asobanura ibipimo ngenderwaho byimbere imbere, agakomeza inzira yo kuzamura abantu kubibazo byimbere, kandi akurikirana inyungu zibyara umusaruro nibiciro byamakosa mugihe.
Ingaruka & Kurinda
Amakipe atandukanye arashobora gukoresha ijambo rimwe muburyo butandukanye, sobanura intera hakiri kare.
Ibipimo birashobora kugaragara bikomeye mugihe imikorere-yisi-itaringaniye.
Kwirengagiza ubuziranenge bwamakuru na gahunda yo gusuzuma akenshi bitanga ibisubizo byoroshye.
Igishushanyo mbonera
Tangira nururimi rusobanutse rwibisubizo ukeneye.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Inyandiko aho Stochastic Gradient Kumanuka hamwe na Momentum ifasha kandi nuburyo bworoshye bworoshye.
Fata nk'irembo ryibimenyetso: niba ibipimo bitujujwe, hagarika kuzenguruka, funga icyuho, hanyuma noneho wagure imikoreshereze.
Komeza Ubushakashatsi
Check your understanding
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