ROC Curves da AUC
ROC mai lankwasa yana tsara yadda mai rarrabawa ke raba azuzuwan biyu a duk iyakar yanke shawara, kuma AUC yana matsawa gabaɗayan lanƙwan zuwa lamba ɗaya.
Dubawa
Together they tell you ranking quality independent of where you draw the cutoff.
Zurfafa nutsewa
Ƙwararren Ƙwararren Ƙwararren Mai karɓa (ROC) yana tsara Ƙididdigar Mahimmanci na Gaskiya (hankali, akan y-axis) a kan Ƙarya Madaidaicin Ƙarya (ƙayyadaddun ƙayyadaddun 1, akan x-axis) yayin da kake zame mashigin rarrabuwa daga 1 zuwa ƙasa 0. Kowane kofa yana ba da maki ɗaya; had'a su yana bin lankwasa. Samfurin da ke matsayin kowane mai inganci sama da kowane mara kyau yana rungumar kusurwar sama-hagu. Yankin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin (AUC) yana auna jimlar yanki a ƙarƙashin wannan layin, jere daga 0.5 (bazuwar zato, diagonal) zuwa 1.0 (cikakke). Fassara mai amfani: AUC yayi daidai da yuwuwar cewa ƙirar ta ƙididdige ƙimar da aka zaɓa ba da gangan ba fiye da mara kyau da aka zaɓa. Kalmar ta fito ne daga ma'aikatan radar na yakin duniya na biyu suna bambanta sigina da hayaniya.
Fahimtar Fasaha
AUC mai zaman kansa bakin kofa ne saboda yana haɗa aiki akan duk yanke, don haka ba shi da tasiri ta inda kuka saita iyakar yanke shawara. Ya yi daidai da lissafi da kididdigar Mann-Whitney U da gwajin ƙimar darajar Wilcoxon, ma'ana ya dogara ne kawai akan odar kididdigar da aka annabta, ba cikakkiyar ƙimarsu ba. Wannan ya sa ya tsaya tsayin daka a ƙarƙashin sauye-sauyen ci na monotonic amma kuma ba ya da hankali ga daidaitawa: ingantaccen tsari amma mara kyaun ƙira na iya har yanzu maki babban AUC.
Dabarun Tasiri
Shawarwari masu haske
Yana taimaka muku keɓance bayyanannen da'awar fasaha daga harshen talla.
Kudin da kasafin kuɗi
Kuna iya yin mafi kyawun tambayoyin aiwatarwa kafin kashe kuɗi ko lokaci.
Ƙungiya da aikin aiki
Ƙungiyoyin da ke da fahimtar juna suna yin mafi kyawun samfura, manufofi, da yanke shawara na koyo.
Makomar ROC Curves da AUC
ROC-AUC ya kasance ma'aunin rahoto na tsoho, amma masu yin aiki suna ƙara haɗa shi tare da Madaidaicin-Recall masu lankwasa don cikakkun bayanai marasa daidaituwa, inda ROC na iya kallon kyakkyawan fata. Yi tsammanin samun tallafi na ɓangare na AUC (mai da hankali kan ƙananan ƙarancin-ƙarya mai kyau wanda ke da mahimmancin aiki), ƙididdige ƙididdiga da ƙididdige ƙididdiga, da kowane rukuni na AUC yana ba da rahoto zuwa ga gibin gaskiya. Kamar yadda samfura ke ciyar da ainihin yanke shawara, ma'aunin daidaitawa da AUC za a ƙara ba da rahoton gefe da gefe maimakon AUC kaɗai.
Aiwatar da Gaskiyar Duniya
Kwatanta nau'ikan gano zamba guda biyu don banki ta AUC don zaɓar wanda ya fi dacewa da mu'amalar yaudara sama da na halal.
Ƙimar gwajin gwaji don cuta (misali, na'urar tantance cutar kansa) inda masu aikin rediyo ke buƙatar yin cinikin kama wasu ƙararraki game da ƙararrawa na ƙarya.
Daidaita bakin kofa na matatar spam ta amfani da lanƙwan ROC don kiyaye ƙimar ƙarya (waɗanda suka dace da wasiƙun da aka yi alama azaman spam) sun ragu sosai.
Ƙididdigar ƙirar ƙirar ƙira ta tsoho inda AUC ta taƙaita yadda yake raba masu lamuni waɗanda suka biya daga waɗanda suka gaza.
Hatsari & Tsare-tsare
Ƙungiyoyi daban-daban na iya amfani da kalmar iri ɗaya daban, don haka ayyana iyaka da wuri.
Alamomi na iya yin kama da ƙarfi yayin da aikin zahirin duniya bai yi daidai ba.
Yin watsi da ingancin bayanai da tsare-tsaren kimantawa galibi yana haifar da sakamako mara ƙarfi.
Taswirar Hanya
Fara da ma'anar harshe a sarari na sakamakon da kuke buƙata.
Zaɓi ma'aunin nasara ɗaya da yanayin gazawa ɗaya kafin gwaji.
Gudun ƙaramin matukin jirgi tare da bayanan wakilci, ba saitin demo da aka goge ba.
Rubutun inda ROC Curves da AUC ke taimakawa kuma inda hanyoyin mafi sauƙi suka fi kyau.
Ci gaba da Bincike
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Jagora na gaba
Bias-Bambancin Ciniki
Tambayoyin da ake yawan yi
What is ROC Curves and AUC?
ROC mai lankwasa yana tsara yadda mai rarrabawa ke raba azuzuwan biyu a duk iyakar yanke shawara, kuma AUC yana matsawa gabaɗayan lanƙwan zuwa lamba ɗaya. Tare suna gaya muku ingancin martaba mai zaman kansa daga inda kuka zana yanke.
Wadanne nau'i biyu ne ROC ke yi wa juna makirci?
ROC mai lankwasa yana tsara ƙimar Mahimmanci na Gaskiya (hankali) akan y-axis akan Ƙarya Madaidaicin Ƙarya (1 - ƙayyadaddun ƙayyadaddun ƙayyadaddun) akan madaidaicin x-axis a kan ƙofa.
Wace ƙimar AUC ta yi daidai da na'ura mai ƙima wacce ba ta aiki fiye da zato bazuwar?
Rarraba bazuwar yana bin layin diagonal, yana ba da AUC na 0.5. AUC na 1.0 cikakke ne, kuma 0.0 yana nufin yana samun kowane matsayi daidai da baya.
Me yasa aka kwatanta AUC a matsayin 'mai zaman kansa'?
AUC yana taƙaita duka lanƙwan ROC, wanda aka samo shi ta hanyar share kowane kofa, don haka baya dogara da kowane yanke zaɓi ɗaya.
Don saitin bayanan da ba daidai ba, wanne ne ake ba da shawarar sau da yawa tare ko maimakon ROC saboda ROC na iya kallon kyakkyawan fata?
A kan matsalolin da ba safai ba, yawan adadin abubuwan da ba su da kyau na gaskiya suna kiyaye ƙimar Ƙarya mara kyau, yana haɓaka ROC. Madaidaicin-Tunawa masu lanƙwasa suna mai da hankali kan ingantaccen aji kuma suna bayyana aiki cikin gaskiya.