Imirongo ya ROC na AUC
Umurongo wa ROC utegura uburyo urwego rutandukanya ibyiciro bibiri murwego rwose rushoboka, kandi AUC ikomatanya uwo murongo wose mumibare imwe.
Incamake
Together they tell you ranking quality independent of where you draw the cutoff.
Kwibira cyane
Ikirangantego gikora Ikiranga (ROC) umurongo utegura igipimo nyacyo cyiza (sensitivite, kuri y-axis) ugereranije nigipimo cyiza cyibinyoma (1 ukuyemo umwihariko, kuri x-axis) mugihe ucyuye urutonde rwurwego kuva 1 kugeza kuri 0. Buri rugabano rutanga ingingo imwe; kubahuza bikurikirana umurongo. Icyitegererezo gitondekanya ibyiza byose hejuru yibibi byose bihobera hejuru-ibumoso. Agace kari munsi yu murongo (AUC) gipima ubuso bwose munsi yuyu murongo, kuva kuri 0.5 (gukeka bidasanzwe, diagonal) kugeza 1.0 (byuzuye). Ibisobanuro byoroshye: AUC ihwanye nibishoboka ko icyitegererezo cyatsinze amanota yatoranijwe neza kuruta icyiza cyatoranijwe. Iri jambo riva mu ntambara ya kabiri y'isi yose ikoresha radar itandukanya ibimenyetso n'urusaku.
Ubushishozi
AUC irigenga-yigenga kuko ihuza imikorere hejuru yo guhagarika byose, ntabwo rero bigira ingaruka aho washyizeho imipaka. Ihwanye n'imibare ihwanye na statistique ya Mann-Whitney U hamwe na test ya Wilcoxon, bivuze ko biterwa gusa nu rutonde rukurikirana amanota yahanuwe, ntabwo ari indangagaciro zuzuye. Ibi bituma bihinduka mugihe cyo guhindura amanota ya monotonic ariko nanone nticyunvikane kuri kalibrasi: icyitegererezo cyiza ariko kalibibasi nziza kirashobora gutsinda AUC yo hejuru.
Ingaruka z'Ingamba
Ibyemezo bisobanutse
Iragufasha gutandukanya ibyifuzo bya tekiniki bisobanutse nururimi rwo kwamamaza.
Igiciro na bije
Urashobora kubaza ibibazo byiza byo gushyira mubikorwa mbere yo gukoresha amafaranga cyangwa igihe.
Itsinda hamwe nakazi
Amakipe asangiye ibitekerezo akora ibicuruzwa byiza, politiki, nibyemezo byo kwiga.
Ejo hazaza h'imirongo ya ROC na AUC
ROC-AUC ikomeza kuba igipimo cyo gutanga raporo, ariko abimenyereza barushijeho kuyihuza na Precision-Kwibuka umurongo ku makuru aringaniye cyane, aho ROC ishobora kugaragara ko ifite uburiganya. Tegereza ko hashyirwaho igice kinini cya AUC (wibanda ku karere-gake-keza-keza gafite akamaro mu mikorere), gusesengura ibiciro no gusesengura ibyemezo, hamwe na buri tsinda AUC ritanga raporo ku cyuho kiboneye. Nka moderi igaburira ibyemezo bifatika, ibipimo bya kalibrasi na AUC bizagenda bitangazwa amakuru kuruhande aho kuba AUC yonyine.
Gushyira mu bikorwa Isi
Kugereranya uburyo bubiri bwo kumenya-uburiganya kuri banki na AUC yabo kugirango bahitemo urwego rwiza rwerekana ibicuruzwa byuburiganya kurenza ibyemewe
Gusuzuma ikizamini cyo gusuzuma indwara (urugero, kanseri yerekana kanseri) aho abahanga mu bya radiologue bakeneye gucuruza gufata izindi manza zerekeye gutabaza.
Kuringaniza spam ya enterineti ukoresheje umurongo wa ROC kugirango ugumane ibyiza (ubutumwa bwemewe bwerekanwe nka spam) hasi cyane
Ibipimo byerekana inguzanyo-idasanzwe yo gutanga amanota aho AUC ivuga muri make uburyo itandukanya abahawe inguzanyo bishyura nabatishyuye
Ingaruka & Kurinda
Amakipe atandukanye arashobora gukoresha ijambo rimwe muburyo butandukanye, sobanura intera hakiri kare.
Ibipimo birashobora kugaragara bikomeye mugihe imikorere-yisi-itaringaniye.
Kwirengagiza ubuziranenge bwamakuru na gahunda yo gusuzuma akenshi bitanga ibisubizo byoroshye.
Igishushanyo mbonera
Tangira nururimi rusobanutse rwibisubizo ukeneye.
Toranya intsinzi imwe hamwe nuburyo bumwe bwo gutsindwa mbere yo kwipimisha.
Koresha umuderevu muto hamwe namakuru ahagarariye, ntabwo ari demo yashizweho.
Inyandiko aho ROC Imirongo na AUC ifasha naho uburyo bworoshye ni bwiza.
Komeza Ubushakashatsi
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Ubuyobozi bukurikira
Ibicuruzwa bitandukanye
Ibibazo bikunze kubazwa
What is ROC Curves and AUC?
Umurongo wa ROC utegura uburyo urwego rutandukanya ibyiciro bibiri murwego rwose rushoboka, kandi AUC ikomatanya uwo murongo wose mumibare imwe. Hamwe na hamwe bakubwira urwego rwiza rutagengwa n’aho ushushanya.
Ni ubuhe buryo bubiri umugozi wa ROC uteganya?
Umurongo wa ROC utegura igipimo nyacyo cyiza (sensitivite) kuri y-axis kurwanya igipimo cyiza cyibinyoma (1 - umwihariko) kuri x-axis kurenga imbibi.
Nuwuhe gaciro AUC ihuye na classifier idakora neza kuruta gukekeranya?
Itondekanya ridasanzwe rikurikirana umurongo wa diagonal, ritanga AUC ya 0.5. AUC ya 1.0 iratunganye, kandi 0.0 bivuze ko ibona urwego rwose rusubira inyuma.
Kuki AUC isobanurwa nk '' ubwigenge-bwigenga '?
AUC ivuga mu ncamake umurongo wose wa ROC, utangwa no guhanagura buri mbago, ntabwo rero biterwa na kimwe cyatoranijwe.
Kuri dataset iringaniye cyane, ni uwuhe murongo usabwa kuruhande cyangwa aho kuba ROC kuko ROC ishobora kugaragara neza?
Kubibazo bidasanzwe-byiza umubare munini wibibi nyabyo bituma igipimo cyibinyoma cyiza kiri hasi, kuzamuka ROC. Icyitonderwa-Ibuka imirongo yibanda kumurongo mwiza kandi ugaragaze imikorere mubyukuri.