Kordhinta-Waqtiga Imtixaanka
Kordhinta wakhtiga tijaabada (TTA) waxay waddaa qaab tababaran oo ku saabsan dhowr nooc oo la beddelay oo isku mid ah oo isku celcelis ah saadaasha.
Dulmar
It is a simple, training-free trick that often squeezes out a few extra points of accuracy and makes predictions more robust.
quusid qoto dheer
Kordhinta waqtiga-tijaabada waxay qaadataa hal-gelin, waxay abuurtaa nuqullo badan oo la beddelay (flips, dalagga, wareegyada, isbeddellada midabka, ama noocyada la miisaamay), mid kastaa wuxuu dhex maraa qaab go'an oo isku mid ah, ka dibna wuxuu isku daraa wax-soo-saarka - badiyaa iyadoo la isku celceliyo ixtimaalka ama saadka. Dareenka: kordhinta kastaa waxay u soo bandhigtaa moodalka aragti yar oo kala duwan, iyo khaladaadka ku jira aragtida shakhsi ahaaneed waxay u muuqdaan inay tirtiraan marka la isku daro, sida koox yar oo laga dhisay hal shabakad. Muhiimad ahaan, TTA uma baahna dib u tababar iyo calaamado dheeri ah uma baahna; kaliya waxay ku kacaysaa xisaabin badan marka la eego sababtoo ah moodelku wuxuu wadaa N times muunadkiiba. Waxay aad ugu caansan tahay aragga kombuyuutarka (gaar ahaan tartamada Kaggle iyo sawir-qaadista caafimaadka) laakiin waxay sidoo kale ka muuqataa maqal iyo qoraal. Kordhinta waa in ay ilaaliso calaamadda - in la rogo raajo laabta waa fiican tahay, laakiin u rogida lambar '6' '9' maaha.
Aragtida Farsamada
Haddii khaladaadka saadaasha moodeelka guud ahaan aragtiyaha la kordhiyey ay qayb ahaan isku xidhnayn, celcelis ahaan waxa ay yaraynaysaa kala duwanaanshiyaha si la mid ah isu-ururinta -laakin iyada oo la isticmaalayo hal miisaan oo kala duwan. Kala soocida waxaad caadi ahaan celcelis ahaan ixtimaalka softmax (ama logits) ka badan tahay aragtida; Qaybinta waa inaad rogtaa isbeddel kasta oo joomatari ka hor inta aanad isku duubin si ay khariidadaha pixel-ku dib isugu habeeyaan. Doorashada summada-ilaalinta kordhinta arrimaha: isbeddelka beddela fasalka runta ah waxay durtaa eex halkii ay ka tirtiri lahayd buuqa.
Saamaynta Istiraatijiyadeed
Qiimaha iyo miisaaniyada
Go'aamada qaab-dhismeedku waxay horseedaan waxqabadka iyo kharashka hawlgalka sannadaha.
Go'aamo cad
Waxbarashada farsamada waxay ka caawisaa kooxaha inay doortaan xidhmo sax ah, ma aha oo kaliya kan ugu cusub.
Xakamaynta tayada
Doorashooyinka injineernimada ee wanaagsan waxay yareeyaan shilalka la isku halleyn karo ee wax soo saarka.
Mustaqbalka Kordhinta Waqtiga Imtixaanka
Cilmi baaristu waxay u socotaa dhanka la bartay iyo la qabsiga TTA, halkaas oo siyaasad yar ay dooranayso kordhinta caawinta qayb kasta oo gaar ah halkii laga isticmaali lahaa go'an go'an. 'Bakhaarnimo' iyo raadinta siyaasadda TTA ee lagu kala duwanaan karo, oo ay weheliso hubanti-la'aanta celceliska miisaanka leh ee aaminaadda kalsoonida badan, ayaa ah aagag firfircoon. Filo TTA in ay ku dhex milanto tababbarka wakhtiga-imtixaanka iyo la qabsiga is-maamulka, u ogolaanaysa moodooyinka la diray in ay la qabsadaan isbeddelka qaybinta duullimaadyada iyada oo la ilaalinayo soo jiidashada leh ee aan dib-u-tabobar lahayn.
Dhaqangelinta Adduunka-dhabta ah
Celcelis ahaan saadaasha rogaal celiska toosan iyo dalagyo badan oo muuqaal ah si kor loogu qaado saxnaanta kala soocida ImageNet marka la eego.
Rogashada wareegyada/rogidashada iyo celceliska waji-xidhka ee kala qaybinta sawirka caafimaadka (tusaale, buro ama xudduudaha xubnaha) si loo kala saaro.
Kaggle tartamayaasha codsanaya toban dalagga ama cabbirka badan ee TTA si ay u helaan qayb ka mid ah boqolkiiba sabuuradda hogaanka iyaga oo aan dib u tababarin.
Ku socodsiinta kala soocida hadalka ama maqalka in yar oo waqti-bedel ah ama cajalado gariir-xumo leh iyo isku-dubarid wax soo saar si loo helo calaamado xasilloon.
Khatarta & Dariiqyada Ilaalada
Hagaajinta hal bartilmaameed waxay qarin kartaa daciifnimada nidaamka ballaaran.
Kaabayaasha dhaqaalaha iyo dayactirka inta badan waa la dhayalsadaa.
Nabadgelyada iyo daldaloolada u fiirsashada ayaa kori kara marka nidaamyadu noqdaan kuwo aad u adag.
Qorshe Hawleedka Dhaqangelinta
Qeex daahida, tayada, iyo bartilmaameedyada qiimaha ka hor inta aan la hirgelin.
Benchmark marka la eego culeyska dhabta ah iyo xaaladaha xogta.
La socodka qalabka khaladaadka, leexashada, iyo saamaynta isticmaalaha.
U diyaari dib-u-noqoshada iyo dariiqyada jawaab-celinta dhacdada ka hor inta aanad miisaan.
Sii wad Sahaminta
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Hagaha xiga
Tababarka-Waqtiga Imtixaanka
Su'aalaha soo noqnoqda
What is Test-Time Augmentation?
Kordhinta wakhtiga tijaabada (TTA) waxay waddaa qaab tababaran oo ku saabsan dhowr nooc oo la beddelay oo isku mid ah oo isku celcelis ah saadaasha. Waa khiyaamo fudud oo bilaa tababar ah oo inta badan soo saarta dhawr dhibcood oo sax ah oo saadaasha ka dhigta mid aad u adag.
Waa maxay fikradda udub-dhexaadka ah ee ka dambeysa kordhinta wakhtiga tijaabada?
TTA waxa ay quudisaa noocyo badan oo la kordhiyey oo hal gelinta ah iyada oo loo marayo qaab la tababaray oo isku dar saadaasha, iyada oo aan dib-u-tababar ku lug lahayn.
Maxay TTA inta badan u wanaajisaa saxnaanta?
Celcelis ahaan dhowr aragtiyood waxay u dhaqmaan sida isku xidhka hal shabakad, yaraynta kala duwanaanshiyaha marka khaladaadka aragtidu aanay qayb ahaan xidhiidhin.
Waa maxay qiimaha ugu weyn ee isticmaalka TTA?
Sababtoo ah gelinta kasta waxaa la dhex maraa waqtiyada shabakadda N, fikraddu waxay noqotaa qiyaas ahaan N waqtiyo qaali ah.
Waa kuwee doorashada kordhinta ee dhab ahaantii dhaawici karta kala soocida nambarka?
Kordhinta waa inay ilaalisaa summada runta ah; rogrogmada tirooyin gaar ah ayaa beddela aqoonsigooda waxayna duraan eex.
Qaybinta, waa maxay tillaabada dheeraadka ah ee loo baahan yahay ka hor inta aan la isku celcelin wax soo saarka TTA?
Kordhinta joomatarigu waxay dhaqaajisaa pixels, markaa maaskaro kasta oo wax soo saar ahi waa in lagu noqdaa qaab-dhismeedka asalka ah ka hor inta aan la midayn.