Gusubira inyuma
Backpropagation ni algorithm ituma urusobe rw'imitsi rwigira kumakosa yarwo mukubara neza uko buri buremere bwagize uruhare mukosa.
Incamake
It is the engine behind almost all modern deep learning training.
Kwibira cyane
Iyo urusobe rw'imitsi rutanga ubuhanuzi, rutanga amakosa amwe apimwa numurimo wo gutakaza. Backpropagation isubiza ikibazo gikomeye: nigute buri miriyoni yuburemere igomba guhinduka kugirango igabanye iryo kosa? Irabikora mukurikiza amategeko yumunyururu kuva kubara, gukora inyuma uhereye kubisohoka ugana ibyinjira. Ikimenyetso cyamakosa gisubizwa mumurongo, kandi kuri buri cyiciro algorithm ibara icyiciro, icyerekezo nubunini buri buremere bugomba guhinduka. Ubushishozi bwingenzi, bwamamaye na Rumelhart, Hinton, na Williams mu 1986, ni uko ibisubizo hagati bishobora kongera gukoreshwa, bigatuma kubara neza. Hatabayeho gusubira inyuma, guhugura umuyoboro wimbitse hamwe na miliyari y'ibipimo byaba bibarwa.
Ubushishozi
Gusubira inyuma bikora mubice bibiri. Imbere yimbere ibara ibyahanuwe kandi ikiza ibikorwa hagati. Inzira isubira inyuma ikurikiza amategeko yumunyururu: igwiza ibikomokaho byibanze kumurongo, ikwirakwiza igipimo cyigihombo kuri buri buremere. Icy'ingenzi, ifata kandi igakoresha ibikomoka ku gice aho kuyibara, bityo igiciro kiguma hafi ya pasiporo imwe. Gradients zavuyemo noneho zihabwa optimizer nka gradient descente kugirango ivugurure ibipimo.
Ingaruka z'Ingamba
Ibyemezo bisobanutse
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza.
Igiciro na bije
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe.
Itsinda hamwe nakazi
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga.
Igihe kizaza cyo gusubira inyuma
Gusubira inyuma bikomeza kuba inkingi yo kwiga byimbitse, ariko abashakashatsi bagenzura byimazeyo imipaka. Igiciro cyacyo cyo kwibuka gikura hamwe nubujyakuzimu, butera amayeri nka gradient igenzura kuri moderi nini. Ibinyabuzima byahumetswe muburyo butandukanye nko kwiga-imbere-kwigira hamwe no guhuza ibitekerezo bigamije gukuraho gusubira inyuma kwishingikiriza kumuremere wibimenyetso hamwe nibimenyetso byamakosa kwisi. Kuri ubu, nta buryo buhuye nubushobozi bwacyo ku gipimo, bityo rero utegereze gusubira inyuma kububasha bwimbaraga zumupaka kumyaka mugihe ubundi buryo bukuze muri laboratoire yubushakashatsi.
Gushyira mu bikorwa Isi
Kumenyereza amashusho kugirango uhindure buhoro buhoro muyungurura kugirango umenye injangwe n'imbwa nyuma ya buri cyiciro cyamafoto
Kuringaniza neza urugero runini rwururimi ku nyandiko za sosiyete usubiza inyuma ikosa ryamagambo akurikira
Kwigisha imodoka yo kwiyobora yimodoka kugirango igabanye amakosa yo guhanura mugihe cyo kwigana
Kuvugurura icyitegererezo cyerekana ibyifuzo kugirango bihanure neza firime umukoresha azakanda
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.
Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.
Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.
Inyandiko aho Backpropagation ifasha nuburyo bworoshye bworoshye nibyiza.
Komeza Ubushakashatsi
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Ubuyobozi bukurikira
Gutakaza Imikorere
Ibibazo bikunze kubazwa
What is Backpropagation?
Backpropagation ni algorithm ituma urusobe rw'imitsi rwigira kumakosa yarwo mukubara neza uko buri buremere bwagize uruhare mukosa. Nibimoteri inyuma yamahugurwa agezweho yo kwiga yimbitse.
Niyihe ntego yibanze yo gusubira inyuma?
Backpropagation ibara igipimo cyigihombo kubijyanye na buri buremere, ubwira optimizer uburyo bwo kuyihindura kugirango igabanye amakosa.
Ni irihe tegeko ry'imibare riri mu mutima wo gusubira inyuma?
Backpropagation ikoresha urunigi rw'amategeko kugirango ihuze ibikomoka hafi murwego, ikwirakwiza ikosa risubira inyuma binyuze murusobe.
Ni ukubera iki gusubira inyuma bifatwa nkuburyo bwo kubara?
Mugukata ibice bikomoka hamwe nibikorwa uhereye kumbere yimbere, gusubira inyuma birinda kubara birenze, kubika igiciro hafi yicyerekezo kimwe.
Ni mu buhe buryo gusubira inyuma bibara gradients?
Izina rivuga byose: ikosa ryakwirakwijwe inyuma, guhera ku bisohoka no kwerekeza ku cyinjijwe, bityo buri cyiciro cya gradient giterwa na layer nyuma yacyo.
Niki gusubira inyuma bitanga umusaruro uhitamo gukoresha?
Backpropagation isohora gradients, optimizer nka gradient descente ikoresha muguhindura uburemere mubyerekezo bigabanya igihombo.