Ikizamini-Igihe cyo Kwiyongera
Ikizamini-gihe cyo kongera (TTA) gikoresha icyitegererezo cyamenyerejwe kuri verisiyo zitandukanye zahinduwe zinjiza kimwe kandi ugereranya ibyahanuwe.
Incamake
It is a simple, training-free trick that often squeezes out a few extra points of accuracy and makes predictions more robust.
Kwibira cyane
Kwipimisha-igihe cyo kongera bifata icyinjijwe kimwe, gikora kopi nyinshi zahinduwe (flips, ibihingwa, kuzunguruka, guhinduranya amabara, cyangwa verisiyo yapimwe), ikora buriwese binyuze muburyo bumwe, hanyuma igahuza ibisubizo - mubisanzwe nukugereranya amahirwe cyangwa logit. Ubushishozi: buriwiyongera yerekana icyitegererezo muburyo butandukanye gato, kandi amakosa yibitekerezo byihariye akunda guhagarika iyo ahujwe, nkitsinda rito ryubatswe kuva kumurongo umwe. Icy'ingenzi, TTA ntikeneye imyitozo kandi nta birango byiyongera; bisaba gusa kubara kubisobanuro kuko icyitegererezo gikora N inshuro kuri sample. Irazwi cyane mubyerekezo bya mudasobwa (cyane cyane amarushanwa ya Kaggle no kwerekana imiti) ariko nanone igaragara mumajwi no mumyandiko. Kwiyongera bigomba kubika ikirango - gukuramo igituza X-ray ni byiza, ariko guhinduranya imibare '6' muri '9' ntabwo aribyo.
Ubushishozi
Niba icyitegererezo cyo guhanura amakosa yibitekerezo byongeweho ntaho bihuriye, impuzandengo igabanya itandukaniro cyane nka ansemble - ariko ukoresheje uburemere bumwe. Kubyiciro mubisanzwe ugereranije softmax bishoboka (cyangwa logit) hejuru yibitekerezo; kubice ugomba guhinduranya buri geometrike ihinduka mbere yo guhuriza hamwe ikarita ya pigiseli igaragara. Guhitamo ibirango-kubika ibyongerewe byingenzi: impinduka ihindura urwego nyarwo itera kubogama aho guhagarika urusaku.
Ingaruka z'Ingamba
Igiciro na bije
Ibyemezo byubwubatsi bitwara imikorere nigiciro cyimikorere kumyaka.
Ibyemezo bisobanutse
Ubuhanga bwa tekinike bufasha amakipe guhitamo umurongo ukwiye, ntabwo ari shyashya gusa.
Kugenzura ubuziranenge
Guhitamo neza bya injeniyeri bigabanya ibintu byizewe mubikorwa.
Ejo hazaza h'ikizamini-Igihe cyo Kwiyongera
Ubushakashatsi bugenda bugana kuri TTA yize kandi ihuza na TTA, aho politiki ntoya itoranya ibyongerwaho bifasha kuri buri cyifuzo cyihariye aho gukoresha umurongo uhamye. 'Umururumba' hamwe nubushakashatsi butandukanye bwa TTA-politiki, hiyongereyeho impuzandengo-idashidikanywaho impuzandengo yizera ibitekerezo byizewe, ni ibikorwa bifatika. Tegereza TTA kuvanga namahugurwa yigihe-gihe hamwe no kwiyobora kwiyobora, kureka moderi zoherejwe zihindurwe mugihe cyo kugabura kuguruka mugihe ibintu bitakongera imyitozo.
Gushyira mu bikorwa Isi
Kugereranya guhanura hejuru ya horizontal hamwe nibihingwa byinshi byishusho kugirango uzamure ImageNet mubyiciro byukuri.
Guhinduranya kuzenguruka / guhindagura hamwe no kugereranya masike mubice byubuvuzi (urugero, ibibyimba cyangwa imbibi zingingo) kugirango bisobanurwe neza.
Abanywanyi ba Kaggle bakoresha ibihingwa icumi cyangwa byinshi-TTA kugirango bunguke igice cyijana kubuyobozi butabanje kwitoza.
Gukoresha imvugo cyangwa amajwi yatondekanye hejuru yigihe gito-cyahinduwe cyangwa icyuma-cyerekeranye na clips hamwe no guhuza ibisubizo kubirango bihamye.
Ingaruka & Kurinda
Gutezimbere igipimo kimwe gishobora guhisha intege nke za sisitemu.
Ibikorwa Remezo no kubungabunga akenshi usanga bidahabwa agaciro.
Icyuho cyumutekano no kwitegereza birashobora kwiyongera uko sisitemu igenda igorana.
Igishushanyo mbonera
Sobanura ubukererwe, ubuziranenge, nigiciro cyibiciro mbere yo kubishyira mubikorwa.
Ibipimo byerekana umutwaro ufatika hamwe namakuru yimiterere.
Gukurikirana ibikoresho kubikosa, drift, ningaruka zabakoresha.
Tegura inzira yo gusubiza ibyabaye mbere yo gupima.
Komeza Ubushakashatsi
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Ubuyobozi bukurikira
Amahugurwa y'Igihe-Igihe
Ibibazo bikunze kubazwa
What is Test-Time Augmentation?
Ikizamini-gihe cyo kongera (TTA) gikoresha icyitegererezo cyamenyerejwe kuri verisiyo zitandukanye zahinduwe zinjiza kimwe kandi ugereranya ibyahanuwe. Nuburyo bworoshye, butagira imyitozo ikunze gukuramo ingingo nkeya zinyongera zukuri kandi bigatuma ubuhanuzi bukomera.
Niki gitekerezo cyibanze inyuma yikizamini-gihe cyo kongera?
TTA igaburira verisiyo nyinshi zongewe kumurongo umwe winjiye muburyo bumwe bwahuguwe kandi ikusanya ibyahanuwe, ntamahugurwa arimo.
Kuki TTA ikunze kunoza ukuri?
Ugereranije hejuru yibitekerezo byinshi bitwara nkurunana rwurusobe rumwe, kugabanya itandukaniro mugihe amakosa yo kureba atagaragara.
Ni ikihe giciro nyamukuru cyo gukoresha TTA?
Kuberako buri cyinjijwe cyanyuze kumurongo N inshuro, umwanzuro uba hafi N inshuro zihenze.
Ni ubuhe buryo bwo kwiyongera bushobora gukomeretsa imibare?
Augmentations igomba kubika ikirango nyacyo; guhinduranya imibare imwe ihindura umwirondoro wabo no gutera kubogama.
Mugice, niyihe ntambwe yinyongera isabwa mbere yo kugereranya ibisubizo bya TTA?
Kwiyongera kwa geometrike kwimura pigiseli, buri masike rero isohoka igomba guhindurwa igasubira muburyo bwambere bwo guhuza ibice mbere yo guhuriza hamwe.