puAUCvɂĐBlރ^XNijɑ]wẄŁAuROCȐ̖̉ʐρvӖAAUCl1.0ɋ߂قǕނ\@BwKf̐\B
@vw^@BwKɂAUCiArea Under the ROC CurveAAUROCAROC-AUCjƂ́Aɓlރ^XNijɑ]wẄŁAuROCȐiqj̖̉ʐρvӖB̎wẂA0.0i0j`1.0i100j͈̔͂̒lA1.0ɋ߂قǃf̗\\ƂB
@Ⴆ@BwKfɂ\SĐi}1ideal curveFz̋ȐjłꍇAAUCl1.0ƂȂA\\ƂӖBAUCl0.5̏ꍇ́A@BwKfɂ\_Ȑirandam guessĂۂ̗\jƓł邱ƂA\\ႢƂӖBAUCl͎̊̂悤ɂȂB
@ȂAUCɂ́AL2ނB
@PɁuAUCvƌꍇAuROCȐgAUCvwƂB
@ROCȐiReceiver Operating Characteristics CurveAMґȐjƂ́Ac^ziTPRFTrue Positive RatejAUziFPRFFalse Positive Ratejăvbgꍇ̋ȐA܂TPRFPR̊W\Ot̂Ƃłi}1jB
@TPRxiSensitivityj^ČiRecalljƑSłBFPŔu1ٓxiSpecificityjvƓӖłBTPRFPŘvZ͖{e̍ŌŎB
@xٓxł͕ޔ̂lw肵AAUCTPR^FPRł0.0`1.0͈̔͂li臒lFthreshold valueJbgIt|CgFcutoff pointsjׂw肵ĂƂŁA}1̂悤ROCȐ`B`̏ڍׂ́Au@BwK̕]ilށ^NXޗpj𗝉悤vƂLɂAUC̐QlɂĂقB
@̂悤ɑ̂lp̂ŁÂlgȂ𗦁iAccuracyjF1XRAƔׂāAAUĆul̉eɁAėpIȃf\vłvƂB
@ႦΑƂő݂|ꃊXN\A܂u݂|^݂|ȂvƂlނsfłAu肵vuɂ肵vƂ`ŗpړIɉĂlύX邱Ƃl邾낤B̏ꍇAl̉elɁAėpIȃf̐\̗ǂvBʂł́A𗦂łF1XRAłȂAAUCg悢B
@ėpIȐ\̗ǂvłAUĆALogLoss̐ŏʂAقȂf[^Zbgg@BwKfԂ̐\rꍇɂg₷]wWłB
@̂悤AUCA͂茇_BAUCTPR͐lẑ̂ΏۂɂlŁAFPR͐lÂ̂ΏۂɂlłBzƉA̐lf[^̐ɒ[sύtiimbalanced datajȏꍇẢeɎĂ܂\BႦΐlz̃f[^ȂꍇATPRFPRX̃f[^ɕqɔ悤ɂȂA}1̂悤ȂꂢȃOtɂȂȂ\܂BāuROCȐgAUCv]wWƂėpꍇɂ́Atx̗zƉA͂ł邾炢̐ɂ낦悢BꂪłȂꍇ́AuPRȐgAUCvgƂƂ悢B
@xiSensitivityj̋LłȒPɐĂAlނsgĂ炽߂TPRFPŘvZoƈȉ̂悤ɂȂB
AUC̒`蕪₷C܂BuPRȐgAUCv̋Lւ̃N܂B
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