I-Mixup ne-CutMix Augmentation
I-Mixup ne-CutMix izindlela zokwandisa idatha ezidala izibonelo zokuqeqesha ezintsha ngokuhlanganisa izithombe ezimbili namalebula azo.
Uhlolojikelele
Mixup linearly interpolates whole images and labels, while CutMix pastes a rectangular patch from one image onto another and mixes labels by patch area — both reduce overfitting and improve robustness.
I-Deep Dive
I-Mixup (Zhang et al., 2017) yenza isampula entsha njengokuthi x̃ = λ·x_a + (1−λ)·x_b ngelebula ỹ exutshwe ngu-λ ofanayo, lapho u-λ ethathwa ekusabalaliseni kwe-Beta. Lokhu kukhuthaza imodeli ukuthi iziphathe ngendlela eqondile phakathi kwezibonelo, ukwenza bushelelezi imingcele yezinqumo nokuthuthukisa ukulinganiswa. I-CutMix (Yun et al., 2019) esikhundleni salokho isika isifunda esingunxande isuka esithombeni B futhi isinamathisele esithombeni A; izisindo zelebula zisethwa ngenani lamaphikseli isithombe ngasinye esinikela ngaso. Ngenxa yokuthi i-CutMix igcina izifunda zesithombe ezihambisanayo endaweni (kunokuba ihlanganise izipoki), igcina isakhiwo esiwusizo sendawo ngenkathi isaphoqa imodeli ukuthi inakekele izinto nezingxenye eziningi. Zombili lezi zindlela zisebenza njengezijwayelekile eziqinile, zikhuphula ukunemba kumabhentshimakhi esikali se-ImageNet, futhi zithuthukise ngokuphawulekayo ukuqina ekonakaleni nokokufaka kokuphikisana.
I-Technical Insight
Zombili izindlela ziguqula okuhlosiwe kokulahlekelwa, hhayi okokufaka kuphela. Ilebula iba ithagethi ethambile, exubile, ngakho-ke ukulahlekelwa kwe-cross-entropy kuyinhlanganisela enesisindo esingu-λ yamakilasi amabili - ngempumelelo iwuhlobo lokushelela kwelebula eliboshelwe esilinganisweni sokuxutshwa kwephikseli. Ku-CutMix, u-λ ulingana nengxenye yamaphikseli angashintshiwe, ebalwa kusukela endaweni yebhokisi elisikiwe elihlukaniswe ngendawo yesithombe esiphelele, okugcina ingxenye yelebula ihambisana nokuthi singakanani isithombe ngasinye esibonakalayo.
I-Strategic Impact
Izindleko kanye nesabelomali
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka.
Izinqumo ezicacile
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha.
Ukulawulwa kwekhwalithi
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni.
Ikusasa le-Mixup and CutMix Augmentation
I-Mix-based augmentation manje isijwayelekile kumaresiphi aqinile wokuhlukanisa izithombe futhi isekela amapayipi okuqeqesha esimanje ama-transformer okubona, avame ukudinga ukwenziwa njalo njalo. Ucwaningo luyaqhubeka ezinhlobonhlobo eziqaphelayo (isb., ukunciphisa izifunda ezifundisayo), ukuxubana kwezinga lamathokheni kuma-transformers, nezandiso zomsindo, umbhalo, nedatha ye-3D. Lindela amasu okuxuba ukuze uhlale uyisilinganisi esinezindleko eziphansi sokuthuthukisa ukunemba, ukulinganisa, nokuqina njengoba izakhiwo zikhula zilambele kakhulu idatha.
Ukuqaliswa Komhlaba Wangempela
Ukuqeqesha izigaba ze-ImageNet nge-CutMix ukuze ukhuphule ukunemba okuphezulu koku-1 futhi uthuthukise ukwenziwa kwasendaweni kwezinto.
Ukusebenzisa i-Mixup ukuthuthukisa ukulinganiswa kwemodeli ukuze izimfihlo ezibikezelwe zifane kangcono nokunemba kweqiniso.
Iziguquli zombono ezijwayeleke kakhulu (isb., i-DeiT) ne-Mixup ne-CutMix ehlanganisiwe ukuze ziqeqeshe ngedatha elinganiselwe.
Ukwandisa ukuqina ezithombeni zenkohlakalo kanye nokokufaka ngaphandle kokusatshalaliswa kwezinhlelo zombono ezibaluleke kakhulu zokuphepha.
Izingozi & Guardrails
Ukuthuthukisa ibhentshimakhi eyodwa kungafihla ubuthakathaka obubanzi besistimu.
Izindleko zengqalasizinda nezokulungisa zivame ukubukelwa phansi.
Izikhala zokuphepha nokubonakala zingakhula njengoba izinhlelo ziba nzima kakhulu.
Ukuqalisa Umhlahlandlela
Chaza ukubambezeleka, ikhwalithi, nezindleko ezihlosiwe ngaphambi kokuqaliswa.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala.
Qhubeka Uhlole
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Umhlahlandlela olandelayo
Ukwengezwa Kwesikhathi Sokuhlola
Imibuzo evame ukubuzwa
What is Mixup and CutMix Augmentation?
I-Mixup ne-CutMix izindlela zokwandisa idatha ezidala izibonelo zokuqeqesha ezintsha ngokuhlanganisa izithombe ezimbili namalebula azo. Ukuhlanganisa kuhlobanisa izithombe eziphelele namalebula ngokulandelana, kuyilapho i-CutMix inamathisela isiqeshana esingunxande sisuka kwesinye isithombe siye kwesinye futhi sixuba amalebula ngendawo yokunamathisela - kokubili kunciphisa ukugqwala futhi kuthuthukisa ukuqina.
I-Mixup isenza kanjani isibonelo esisha sokuqeqesha?
Amafomu okuxuba x̃ = λx_a + (1−λ)x_b futhi axube amalebula afanayo λ athathwe ekusakazweni kwe-Beta.
Uyini umehluko oyinhloko phakathi kwe-CutMix ne-Mixup?
I-CutMix ikopisha indawo engunxande isuka kwesinye isithombe iye kwesinye, igcina okuqukethwe okuhambisanayo endaweni kunokuhlanganisa izithombe ezimbili.
Ku-CutMix, sinqunywa kanjani isisindo sokuxuba (lambda) samalebula?
Ingxenye yelebula ku-CutMix isethwe indawo yebhokisi elinamathiselwe ngokuhlobene nesithombe sonke, igcina amalebula ehambisana namaphikseli abonakalayo.
Ngaphandle kwesithombe sokufaka, yini enye i-Mixup ne-CutMix eshintshayo?
Zombili izindlela zixuba amalebula futhi, zikhiqize iziqondiso ezithambile ezisebenza njengohlobo oluncike kudatha lokushelela kwelebula.
Yikuphi ukusatshalaliswa okuvame ukusetshenziselwa isampula ye-coefficient lambda yokuhlanganisa?
I-Mixup ne-CutMix ngokuvamile idonsa okuthi λ ekusabalaliseni kwe-Beta, elawula ukuthi izibonelo ezimbili zixutshwe kangakanani.