Precision ak fàttaliku
Precision ak recall ñaari metric yuy mottali lañu ngir jàngat classifier yi, rawatina sudee class yi tolloowul.
Résumé
Together they reveal what plain accuracy hides — how often a model's positive predictions are right, and how many real positives it actually catches.
Plongeur bu xóot
Sudee ab model dafay màndargaal mbir yi ni lu baax, ñaari laaj ñoo am solo. Precision dafay laaj: ci lépp luñu màndargaal, ñaata moo nekkoon lu baax dëgg? Dafay méngoo ak positive dëgg yi nga xaaj ko ak positive yiñ séentu yépp, di daan alarm yu baaxul yi. Rappel (sensitivite) dafay laaj: ci mbir yu baax yi am ci biti, ñaata lañu jàpp? Dafay méngoo ak positive dëgg yi nga xaaj ko ak positive dëgg yépp, di yar ñi ñàkk. Yii dañuy faral di njaay: wàññi dogal bi dafay gëna jàpp lu baax (gëna gëna fàttaliku) waaye dafay gëna fësal junk (gëna néew njub), ak luko moy. Li nga wara njëkka tànn mingi aju ci njëg yi - filtre spam bi dafay bëgg njub (bul mbalit mail dëgg), fekk ekraŋ cancer bi dafay bëgg fàttaliku (bul ñàkka am tumër). Njortu F1, seen moyenne harmonique, ñoom ñaar ñu ngi boole ci benn nimero.
Gis-gis xarala
Ñari metrike yi yépp ñu ngi bawoo ci matrix jaxasoo bi ci dëgg positif (TP), njuumte positif (FP), ak njuumte negatif (FN): Njàngale = TP / (TP + FP), Fàttaliku = TP / (TP + FN). Ci anam wu fësoon, benn ci ñoom jëfandikoowul negatif yu dëggu yi, moo tax ñuy wéy di joxe leeral sudee negatif yi dañu ëppee positif yi. Bale threshold bu xaaj bi dafay toppu ab courbe buy fàttaliku ci anam wu jaar yoon; barab bi ci ronn (precision moyenne) dafay tënk performance te moo gëna am solo ci ROC-AUC ci done yu desekilibre lool.
njeextalu pexe
dogal yu gëna leer
Daf lay jàppale nga tàqale kàddu yu leer ci wàllu xarala ak làkku fësal njaay.
Njëgg ak budget
Mën nga laaj laaj yu gëna baax ci samp gi balaa ngay dugal xaalis wala sa jotu liggéey.
Ekip ak def liggéey
Ekip yi bokk xam-xam ñoo gëna mëna jël yenn dogal ci wàllu produit, politik ak jàng.
Ëlëgu njub ak fàttaliku
Bi IA duggee ci domen yu am solo - saytu pajum, ëmbiit li, njuuj njaaj - ekip yi dañuy gëna xamle njub ak fàttaliku (ak seeni courbe) du njub kese, ak tune thresholds ngir méngoo ak njëg yi am ci àdduna bi ak ay jafe-jafe yoon. Grupp bu nekk ci njub/ñuy fàttaliku audit yi ñu ngi nekk standard ngir gis njuumte yu wuute yi ci demografik yi. Xaarandil metrics yu gëna am solo ci njëg, probabilite yuñ kalibre, ak jumtukaay yuy may boroom alal yi ñu tànnee poñ yi ñuy jëfandikoo ci anam wu weccoo xalaat ludul nangu 0.5 threshold biñ jagleel.
Doxal ci àdduna dëgg
Seggal spam yi dañu leen di defar ngir ñu mëna jaar yoon, suko defee ñu baña yónnee imeel yu baax yi ci dosiye spam bi ci anam wu jaarul yoon.
Test depistaasoŋ medikaal yi dañu njëkka fàttali nit ñi ngir moytu ñu réer malaad yi am feebar bi dëgg, nangu ñu gëna bari njuumte ngir topp.
Sistemu seetlu ak xalaat yi dañuy rapoor precision@k (ñaata ci resultaa yi gëna mag ñoo am njariñ) ngir natt kalite rang yi.
Gis njuuj njaaj dafay ekilibre njub ak fàttaliku jaaraleko ci poñ F1, ndax alarm yu baaxul ak njuuj njaaj yépp dañu seer lool.
Risk yi ak balustrade yi
Ekip yu bari mën nañu jëfandikoo benn baat ci anam wu wuute, kon teela leeral yaatuwaayam.
Benchmark yi mën nañu nuru lu am doole waaye performance yi ci àdduna bi duñu tolloo.
Bëgg kalite done ak palaŋu jàngat dafay faral di jur njariñ yu yomba dagg.
Roadmap ngir samp gi
Tàmbaleel ci joxe leeral ci làkk wu leer ci njariñ li nga soxla.
Tannal benn metric bu baax ak benn anam bu baaxul balaa ngay saytu.
Doxal ab pilote bu ndaw ak ay done yu representatif, du ab demo bu leer.
Bindal fi Precision ak Recall di jàppale ak fi pexe yu gëna yomba gëna baax.
Weyal di banneexu
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Gis bi ci topp
Tempus IA ci medsin bu jaar yoon
Laaj yi ñuy faral di laaj
What is Precision and Recall?
Precision ak recall ñaari metric yuy mottali lañu ngir jàngat classifier yi, rawatina sudee class yi tolloowul. Ñoom ñépp dañuy wane li njubte bu leer di nëbb — ñaata yoon la li ñuy wax lu baax ci model bi di dëggu, ak ñaata yoon lay jàpp lu baax dëgg.
What is next for Precision and Recall?
Bi IA duggee ci domen yu am solo - saytu pajum, ëmbiit li, njuuj njaaj - ekip yi dañuy gëna xamle njub ak fàttaliku (ak seeni courbe) du njub kese, ak tune thresholds ngir méngoo ak njëg yi am ci àdduna bi ak ay jafe-jafe yoon. Grupp bu nekk ci njub/ñuy fàttaliku audit yi ñu ngi nekk standard ngir gis njuumte yu wuute yi ci demografik yi. Xaarandil metrics yu gëna am solo ci njëg, probabilite yuñ kalibre, ak jumtukaay yuy may boroom alal yi ñu tànnee poñ yi ñuy jëfandikoo ci anam wu weccoo xalaat ludul nangu 0.5 threshold biñ jagleel.
Precision mooy tontu ban laaj?
Precision = TP / (TP + FP) dafay natt njubteg xam-xam bu baax bi ci model bi — ni darapo bu baax mëna wóolu.
Lan moo waral ñu taamu njub ak fàttaliku moo gën njub bu leer ci ensemble done yu desekilibre lool?
Ndax benn ci metric yi jëfandikoowul negatif yu dëggu yi, duñu leen yokk ci xeetu negatif bu yaatu, bu yomb di wax luy waaja am ci anam wi dëggu bi di doxee.