Uhlolojikelele
Ukulahlekelwa okugxilwe kukho kuwumsebenzi wokulahlekelwa okushintshiwe okwenza izibonelo ezilula zokunciphisa isisindo ukuze umtshina ukwazi ukugxila kokuqinile, okungajwayelekile. Ixazulule ukungalingani okwedlulele kwengemuva-kuqhathaniswa-kwento okukhubaze izitholi zento zesiteji esisodwa.
I-Focal Loss for Imbalanced Detection iyibhulokhi yokwakha yobuchwepheshe ethinta ikhwalithi yemodeli, izindleko zengqalasizinda, ukubambezeleka, nokuthembeka esikalini.
I-Deep Dive
Ekutholeni into, isithombe singaqukatha izinto ezimbalwa kuphela zangempela kodwa amashumi ezinkulungwane ezindawo zamakhandidethi, cishe zonke ezingemuva okulula. Nge-cross-entropy evamile, lesi sikhukhula sezinto ezingezinhle ezilula silawula ukuhleleka futhi kuminza okuhle okungandile. Ukulahlekelwa okugxilwe kukho, okwethulwe ephepheni le-RetinaNet lango-2017 ngu-Lin kanye nozakwabo ku-Facebook AI, kulungisa lokhu ngokuphindaphinda i-cross-entropy nge-factory (1 - p_t)^gamma. Uma isampula ihlukaniswa ngokuzethemba nangokulungile, i-p_t iseduze noku-1, ngakho isici sincipha siye ku-zero futhi isibonelo esihlukaniswe kahle asinikeleli kangako. Izibonelo eziqinile, ezingahlukaniswanga kahle zigcina isisindo siseduze. Nge-gamma cishe engu-2, i-RetinaNet ifaniswe noma yashaya izitholi ezinezigaba ezimbili ezihamba kancane njenge-Faster R-CNN kuyilapho ihlala inethiwekhi elula ye-single-pass.
I-Technical Insight
Ipharamitha egxilile ye-gamma ilawula ukuthi izibonelo ezilula zicindezelwa kanjani: ku-gamma 0 ukulahlekelwa kwefocal kulingana ne-cross-entropy evamile, futhi i-gamma ephakeme ilola ukugxila kumakesi aqinile. I-alpha yesisindo sokulinganisa (imvamisa engu-0.25 yesigaba esingavamile) ivamise ukuhlanganiswa nayo. Okubalulekile ukuthi into elungisayo ibumba kabusha ama-gradients, hhayi nje inani lokulahlekelwa, ngakho-ke ukusakazwa kwe-backpropagation ngokwemvelo kugcizelela amasampula angacacile ngaphandle kokumbiwa kwezimayini okuyisibonelo esiqinile noma ukusampula kabusha.
I-Mastering Focal Loss yokutholwa Okungalingani
Ukulahlekelwa okugxilwe kukho kuwumsebenzi wokulahlekelwa okushintshiwe okwenza izibonelo ezilula zokunciphisa isisindo ukuze umtshina ukwazi ukugxila kokuqinile, okungajwayelekile. Ixazulule ukungalingani okwedlulele kwengemuva-kuqhathaniswa-kwento okukhubaze izitholi zento zesiteji esisodwa. I-Focal Loss for Imbalanced Detection iyibhulokhi yokwakha yobuchwepheshe ethinta ikhwalithi yemodeli, izindleko zengqalasizinda, ukubambezeleka, nokuthembeka esikalini. Ukuze wakhe ukuqonda okujulile, phatha i-Focal Loss for Imbalanced Detection njengemodeli yokusebenza, hhayi isici esisodwa: chaza imiphumela efiselekayo, ucacise ukucabanga, futhi uhlukanise lokho isistimu engakwenza ngokwethembeka kulokho okusadinga ukwahlulela kochwepheshe.
Empeleni, amaqembu aqinile asebenzisa i-Focal Loss for Imbalanced Detection alungiselela izakhiwo, idatha, nokukhetha kwengqalasizinda ngokumelene nokuthembeka nezindleko. Babhala imibandela yempumelelo ecacile, ukuhlola okuqhathaniswa nedatha engokoqobo nokugeleza komsebenzi, futhi baphindaphinde ngokusekelwe kumaphethini okuhluleka aqashiwe esikhundleni sokuwina kwebhentshimakhi yesikhathi esisodwa. Yilapho ukuqonda kwethiyori kuguquka kube amandla ahlala njalo kuwo wonke umkhiqizo, inqubomgomo, kanye nokusebenza.
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka. Ngesikhathi esifanayo, Ukuthuthukisa ibhentshimakhi eyodwa kungafihla ubuthakathaka obubanzi besistimu. Indlela eqine kakhulu iwukuhlanganisa isivinini sokuhlola nesiyalo sokuphatha: qhuba abashayeli bezindiza, bamba ubufakazi, ushicilele amalogi ezinqumo, futhi ubuyekeze izivikelo ngokuqhubekayo njengoba imodeli yokuziphatha, okulindelwe ngabasebenzisi, kanye nezimfuneko zokulawula zishintsha.
I-Strategic Impact
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka.
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha.
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni.
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Ukuqaliswa Komhlaba Wangempela
Ithola izimpawu zomgwaqo ezincane noma abahamba ngezinyawo abakude kumafreyimu azishayelayo lapho amaphikseli amaningi angemuva.
Ukuthola izimila ezingavamile noma izilonda ekuhlolweni kwezokwelapha okubuswa izicubu ezinempilo.
Ukubona amaphutha kulayini wokukhiqiza lapho ingxenye enkulu yezingxenye ezihloliwe zijwayelekile.
Ukuhlonza imikhumbi emincane noma izimoto ngesathelayithi enkulu nesithombe sasemoyeni.
Amaphethini Okusebenzisa
Ukulahlekelwa Okugxile Kokutholwa Okungalingani ekusebenzeni
Ithola izimpawu zomgwaqo ezincane noma abahamba ngezinyawo abakude kumafreyimu azishayelayo lapho amaphikseli amaningi angemuva.
Ukuthola izimpawu zomgwaqo ezincane noma abahamba ngezinyawo abakude kumafreyimu azishayelayo lapho amaphikseli amaningi engemuva Amathimba ngokuvamile athola imiphumela engcono uma echaza ikhwalithi ephezulu ngaphambili, egcina indlela yokukhuphuka yomuntu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukulahlekelwa Okugxile Kokutholwa Okungalingani ekusebenzeni
Ukuthola izimila ezingavamile noma izilonda ekuhlolweni kwezokwelapha okubuswa izicubu ezinempilo.
Ukuthola izimila ezingavamile noma izilonda ekuhlolweni kwezokwelapha okubuswa izicubu ezinempilo Amathimba ngokuvamile athola imiphumela engcono lapho echaza izilinganiso zekhwalithi ngaphambili, egcina indlela yokukhuphuka komuntu ezimweni ezibucayi, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukulahlekelwa Okugxile Kokutholwa Okungalingani ekusebenzeni
Ukubona amaphutha kulayini wokukhiqiza lapho ingxenye enkulu yezingxenye ezihloliwe zijwayelekile.
Ukubona amaphutha kulayini wokukhiqiza lapho ingxenye enkulu yezingxenye ezihloliwe kuyize evamile Amathimba ngokuvamile athola imiphumela engcono lapho echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka kwabantu yamakesi asemaphethelweni, futhi elandelela kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukulahlekelwa Okugxile Kokutholwa Okungalingani ekusebenzeni
Ukuhlonza imikhumbi emincane noma izimoto ngesathelayithi enkulu nesithombe sasemoyeni.
Ukuhlonza imikhumbi emincane noma izimoto kusithombe sesathelayithi esikhulu nesemoyeni Amaqembu ngokuvamile athola imiphumela engcono uma echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka yabantu yamakesi asemaphethelweni, futhi elandelela kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
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.
Chaza ukubambezeleka, ikhwalithi, nezindleko ezihlosiwe ngaphambi kokuqaliswa. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.