Luminta Saddex-geesoodka ah iyo Barashada Metric
Luminta saddex-geesoodka ah waxay baraysaa shabakadda neerfaha inay meel isugu dhow geliyaan walxaha la midka ah iyo kuwa la midka ah oo aad u kala fog meel bannaan.
Dulmar
It is the foundation behind face recognition, image search, and recommendation systems that need to compare things rather than just classify them.
quusid qoto dheer
Barashada mitirka waxay tabobartaa nooc si ay u soo saarto wax-ku-xidhka, vectors halka masaafada ay ka tarjumayso isku mid. Luminta saddex-geesoodka ahi waxay tan samaysaa iyadoo la isticmaalayo saddex qalab markiiba: barroosin, mid togan (lala mid ah barroosinka), iyo taban (class kala duwan). Ujeedadu waxa ay ku riixdaa barroosinka in ay u dhawaato dhanka togan marka loo eego ta xun ugu yaraan margin go'an. Si rasmi ah, khasaaruhu waa ugu badnaan (0, d (a,p) - d (a,n) + margin), halkaas oo d inta badan ay tahay fogaanta Euclidean. Google's 2015 FaceNet waxa ay faafisay habkan, iyada oo si toos ah u baratay 128-cabbir weji-gaaban. Marka la tababaro, waxaad is barbardhigtaa labada shay adigoo xisaabinaya masaafada, dib u tababar uma baahna aqoonsiyo cusub. Awooddan furan waa sababta ay mitirka barashada awoodaha xaqiijinta iyo kala soocidda hawlaha dib u soo celinta aanay si fudud u xamili karin.
Aragtida Farsamada
Margin waa waxa ka dhigaya luminta saddex-geesoodka ah inay shaqeyso. La'aanteed, moodeelku wuxuu si dhib yar u dumin karaa dhammaan waxyaabaha la isku dhejiyay ilaa hal dhibic, taasoo ka dhigaysa fogaan kasta eber iyo dalbashada mid aan macno lahayn. Marginku waxa uu xooga saarayaa kaydka: taban waa in uu ahaado ugu yaraan fogaan ka fog kan togan ka hor inta aanu khasaaruhu gaadhin eber. Isku-xidhka ayaa caadi ahaan L2-caadiyan dusha sare ee unugga hypersphere, markaa masaafadu waxay ahaanaysaa mid xaddidan oo la barbar dhigi karo. Doorashada margin (badanaa agagaarka 0.2) waxay ka baayacmushtaraysaa sida adag ee ay fasaladu isugu urursan yihiin kala soocida dhexdooda.
Saamaynta Istiraatijiyadeed
Go'aamo cad
Waxay kaa caawinaysaa inaad kala saartid sheegashooyinka farsamada cad iyo luqadda suuq-geynta.
Qiimaha iyo miisaaniyada
Waxaad waydiin kartaa su'aalo fulineed oo wanaagsan ka hor inta aadan lacag ama waqti bixin.
Kooxda iyo socodka shaqada
Kooxaha fahamka la wadaago waxay sameeyaan wax soo saar, siyaasad, iyo go'aano waxbarasho oo wanaagsan.
Mustaqbalka Luminta Saddex-geesoodka ah iyo Barashada Metric
Khasaaraha saddex-geesoodka ah ee saafiga ah waxa si isa soo taraysa u bedelaya ujeedooyinka dufcad-ballaaran sida isu ekaanshiyaha badan, wakiil-anchor, iyo khasaare is-barbardhiga (InfoNCE) kuwaas oo isbarbar dhigaya lammaane badan tallaabo kasta oo si degdeg ah isugu soo urura. Hababka is-maamulka sida SimCLR waxay muujinayaan barashada mitirka waxay shaqayn kartaa calaamad la'aan iyadoo loola dhaqmayo aragtiyaha la kordhiyey inay yihiin kuwo wanaagsan. Sida xog ururinta xogta iyo soo-celinta-soo-celinta-jiilka kor loo qaaday, wax-soo-saarka la bartay ayaa xoojinaya raadinta semantic ee miisaanka bilyan-shay, markaa fikradda udub-dhexaadka ah ee masaafada-u ekaanshaha-u ekaanshaha ayaa noqonaysa mid udub dhexaad u ah, xitaa marka qaabka gaarka ah ee saddex-geesoodka ah uu sii yaraanayo.
Dhaqangelinta Adduunka-dhabta ah
Xaqiijinta wajiga qaabka FaceNet: telefoonada iyo albaabada baasaboorka waxay xaqiijinayaan aqoonsiga iyagoo hubinaya in laba waji oo isku dhejisan ay ku dhacaan meel fog.
Raadinta alaabta muuqaalka ah: Goobaha e-ganacsiga waxay u ogolaadaan dukaamaysanayaasha inay soo galiyaan sawir oo ay dib u soo ceshadaan walxaha la midka ah ee muuqaalka ah iyagoo eegaya daris-ku dhow.
Xaqiijinta hadalka: caawiyayaasha codku waxay cuskanayaan muunada codka oo ay barbar dhigaan profile diiwaangashan si loo xaqiijiyo cidda hadlaya.
Saxeexa iyo xaqiijinta gacan-qorista: bangiyadu waxay ku dhejiyaan tixraaca iyo saxeexyada waydiinta iyo been-abuurka calanka marka masaafada ay dhaafto margin la bartay.
Khatarta & Dariiqyada Ilaalada
Kooxo kala duwan ayaa laga yaabaa inay isla erey u isticmaalaan si kala duwan, marka hore u qeex baaxadda.
Tilmaamaha ayaa u ekaan kara kuwo xooggan halka waxqabadka dhabta ah ee dunidu aanu sinnayn.
In la iska indho tiro tayada xogta iyo qorshayaasha qiimayntu waxay inta badan abuurtaa natiijooyin jilicsan.
Qorshe Hawleedka Dhaqangelinta
Ka bilow qeexidda luqadda cad ee natiijada aad u baahan tahay.
Dooro hal cabbir guusha iyo hal xaalad guuldarro ka hor tijaabada.
Ku orod duuliye yar oo wata xogta matale, ee ma aha bandhig muuqaal ah.
Qor meesha Triplet Loss iyo Metric Learning ay caawiso iyo meelaha hababka fudud ay ka fiican yihiin.
Sii wad Sahaminta
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Hagaha xiga
Shabakadda Siamese iyo Khasaaraha Saddex-geesoodka ah
Su'aalaha soo noqnoqda
What is Triplet Loss and Metric Learning?
Luminta saddex-geesoodka ah waxay baraysaa shabakadda neerfaha inay meel isugu dhow geliyaan walxaha la midka ah iyo kuwa la midka ah oo aad u kala fog meel bannaan. Waa aasaaska ka dambeeya aqoonsiga wejiga, raadinta sawirka, iyo hababka talo bixinta ee u baahan in la isbarbardhigo waxyaabaha halkii la kala saari lahaa.
Waa kuwee saddexda wax-soo-saarka ee ka kooban saddex-jibbaal oo khasaare saddex-laab ah?
Saddex-geesoodku waxa uu ka kooban yahay barroosin, mid togan oo wadaaga fasalka barroosinka, iyo mid taban oo ka yimid fasal kale.
Waa maxay sababta lumitaanka saddex-geesoodka ah ay ku jiraan muddada margin?
Margin la'aanteed, qaabku wuxuu khariidad u samayn karaa wax walba isla hal dhibic, isagoo ka dhigaya dhammaan masaafooyinka eber oo si fudud u qanciya khasaaraha. Marginku wuxuu xoojiyaa kala-goynta dhabta ah.
Nidaamkee caanka ah ee 2015 ayaa caan ku ah luminta saddex-geesoodka ah ee aqoonsiga wejiga?
Google's FaceNet waxay isticmaashay khasaare saddex geesood ah si ay u barto wejiga isku dhejinta oo u dejiso cabbirka xaqiijinta wejiga.
Muxuu ka dhigayaa qaabka metric-Learning ee la tababbaray ee wax-is-gelinta kasta?
Qaabka ayaa khariidado ka dhigaya agabka la gelinayo vectors; waxaad markaa is barbardhig ku samaynaysaa shayada adiga oo cabbiraya masaafada u dhaxaysa guntooda.
Waa maxay sababta barashada mitirku ay ugu habboon tahay mashaakilaadka furan sida ku darista wajiyo cusub?
Sababtoo ah aqoonsigu wuxuu ku salaysan yahay fogaanta dhexda, waxaad ku qori kartaa aqoonsi cusub si fudud adiga oo kaydinaya guntintiisa, dib-u-tababar nooc ah oo loo baahan yahay ma jirto.