{"id":15,"date":"2015-03-10T18:01:43","date_gmt":"2015-03-10T09:01:43","guid":{"rendered":"http:\/\/imgcom.jsrt.or.jp\/rocGroup\/?page_id=15"},"modified":"2017-10-31T11:32:24","modified_gmt":"2017-10-31T02:32:24","slug":"roc%e8%a7%a3%e6%9e%90%e3%81%ae%e5%95%8f%e9%a1%8c%e7%82%b9%e3%82%92%e8%a3%9c%e3%81%86%e3%81%9f%e3%82%81%e3%81%aelroc%e8%a7%a3%e6%9e%90","status":"publish","type":"page","link":"http:\/\/imgcom.jsrt.or.jp\/rocGroup\/metzs-roc-software-users-group\/topics-and-news\/roc%e8%a7%a3%e6%9e%90%e3%81%ae%e5%95%8f%e9%a1%8c%e7%82%b9%e3%82%92%e8%a3%9c%e3%81%86%e3%81%9f%e3%82%81%e3%81%aelroc%e8%a7%a3%e6%9e%90\/","title":{"rendered":"ROC\u89e3\u6790\u306e\u554f\u984c\u70b9\u3092\u88dc\u3046\u305f\u3081\u306eLROC\u89e3\u6790"},"content":{"rendered":"

1. \u306f\u3058\u3081\u306b\u3000\u2013\u3000ROC\u89e3\u6790\u306e\u554f\u984c\u70b9\uff0d<\/p>\n

\u4eca\u65e5\u3067\u306f\uff0c\u3055\u307e\u3056\u307e\u306a\u653e\u5c04\u7dda\u533b\u7528\u753b\u50cf\u306e\u9818\u57df\u3067\u7528\u3044\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305fROC\u89e3\u6790\u3067\u3059\u304c\uff0cROC\u89e3\u6790\u304c\u4e16\u306b\u51fa\u305f\u5f53\u521d\u304b\u3089\uff0c\u8a00\u308f\u308c\u7d9a\u3051\u3066\u3044\u308b\u554f\u984c\u70b9\u304cROC\u89e3\u6790\u306b\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\uff0e\u305d\u308c\u3089\u306e\u4e2d\u306b\u306f\uff0c\u75c5\u5909\u306e\u3042\u308b\u306a\u3057\u3092\u5224\u5b9a\u3057\u3066\u3044\u308b\u306b\u304b\u304b\u308f\u3089\u305a\uff0c\u89b3\u5bdf\u8005\u306f\u305d\u306e\u4f4d\u7f6e\u3092\u793a\u3055\u306a\u304f\u3066\u3082\u826f\u3044\u306e\u3067\uff0c\u3082\u3057\u89b3\u5bdf\u8005\u304c\u9593\u9055\u3063\u3066\u540c\u3058\u753b\u50cf\u306e\u4e2d\u306e\u9055\u3046\u5834\u6240\u3092\u75c5\u5909\u3068\u601d\u3063\u3066\u201c\u75c5\u5909\u304c\u3042\u308b\u201d\u3068\u56de\u7b54\u3057\u305f\u5834\u5408\u3067\u3082\uff0c\u305d\u308c\u306f\u6b63\u3057\u3044\u53cd\u5fdc\uff08True Positive Response\uff09\u3068\u898b\u306a\u3055\u308c\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u3084\uff0c\u4e00\u3064\u306e\u8a66\u6599\u306b\u4fe1\u53f7\uff08\u75c5\u5909\uff09\u306f\u4e00\u3064\u3068\u9650\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u3067\uff0c\u5b9f\u969b\u306b\u306f\u8907\u6570\u5b58\u5728\u3059\u308b\u3053\u3068\u306e\u591a\u3044\u81e8\u5e8a\u4f8b\u3092\u7528\u3044\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\uff0c\u3068\u3044\u3046\u3053\u3068\u306e2\u70b9\u304c\u542b\u307e\u308c\u307e\u3059\uff0e\u5b9f\u969b\u306b\u306f\uff0c\u524d\u8005\u306e\u3088\u3046\u306a\u30b1\u30fc\u30b9\u306f\u8a66\u6599\u306e\u6570\u3092\u5897\u3084\u3059\u3053\u3068\u306b\u3088\u3063\u3066\u5f71\u97ff\u304c\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059\u3057\uff0cROC\u5b9f\u9a13\u3092\u884c\u3046\u5834\u5408\u306b\u89b3\u5bdf\u8005\u306b\u5b9f\u9a13\u8a66\u6599\u306e\u6027\u8cea\uff08\u7279\u7570\u6027\uff09\u306b\u3064\u3044\u3066\u5341\u5206\u306a\u8aac\u660e\u3092\u884c\u3046\u3053\u3068\u3067\uff0c\u5f8c\u8005\u306e\u30d0\u30a4\u30a2\u30b9\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\uff0e\u3057\u304b\u3057\u306a\u304c\u3089\uff0c\u6628\u4eca\u306e\u3088\u3046\u306b\uff0c\u3088\u308a\u5b9f\u969b\u306e\u81e8\u5e8a\u306b\u8fd1\u3044\u72b6\u6cc1\uff08\u8a2d\u5b9a\uff09\u3067\u306e\u8a55\u4fa1\u304c\u6c42\u3081\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304f\u308b\u3068\uff0c\u305d\u3046\u3044\u3063\u305fROC\u89e3\u6790\u304c\u62b1\u3048\u308b\u554f\u984c\u70b9\u3092\u7121\u8996\u3057\u3066\u3070\u304b\u308a\u3082\u3044\u3089\u308c\u306a\u304f\u306a\u3063\u3066\u304d\u307e\u3057\u305f\uff0e\u305d\u3053\u3067\uff0c\u6700\u8fd1\u306f\u305d\u308c\u3089\u306eROC\u89e3\u6790\u306e\u554f\u984c\u70b9\u3092\u88dc\u3046\u3068\u3044\u3046\u610f\u5473\u3067\uff0cLROC\uff08ROC-type curve for task of detection and localization\uff09[1]\u3068FROC\uff08free-response receiver operating characteristic\uff09[2-4]\u3068\u3044\u3046\uff12\u3064\u306e\u89e3\u6790\u6cd5\u304c\u4ee5\u524d\u3088\u308a\u3082\u983b\u7e41\u306b\u8a71\u984c\u306b\u4e0a\u304c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u307e\u3057\u305f\uff0e<\/p>\n

LROC\u306fROC\u89e3\u6790\u3092\u958b\u767a\u3057\u305f\u306e\u3068\u540c\u3058\u30b7\u30ab\u30b4\u5927\u5b66\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u958b\u767a\u3055\u308c\u305f\u89e3\u6790\u6cd5\u3067\uff0c\u7406\u8ad6\u7684\u80cc\u666f\u306fROC\u89e3\u6790\u3068\u307b\u307c\u540c\u3058\u3068\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cFROC\u89e3\u6790\u306f\u540d\u524d\u306f\u4f3c\u3066\u3044\u308b\u3082\u306e\u306e\uff0cROC\u89e3\u6790\u3068\u306f\u3060\u3044\u3076\u5185\u5bb9\u304c\u7570\u306a\u3063\u3066\u304a\u308a\uff0c\u7406\u8ad6\u7684\u80cc\u666f\u3084\u8868\u793a\u6cd5\u304cROC\u89e3\u6790\u3068\u306f\u7570\u306a\u308a\u307e\u3059\uff0e\u3053\u3053\u3067\u6ce8\u610f\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u306e\u306f\uff0c\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u3082\uff0cROC\u89e3\u6790\u3068\u540c\u3058\u304f\u3089\u3044\u53e4\u304f\u304b\u3089\u3042\u308b\u306e\u306b\uff0cROC\u89e3\u6790\u307b\u3069\u666e\u53ca\u3057\u3066\u3044\u306a\u3044\uff0c\u3068\u3044\u3046\u3053\u3068\u3067\u3059\uff0e\u305d\u306e\u7406\u7531\u306f\uff0c\u3053\u306e\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u3082ROC\u89e3\u6790\u306e\u3088\u3046\u306b\uff0cROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u305f\u3081\u306e\u7d71\u8a08\u7684\u63a8\u5b9a\u6cd5\u3084\uff0c\u66f2\u7dda\u9593\u306e\u7d71\u8a08\u7684\u6709\u610f\u5dee\u306e\u691c\u5b9a\u3092\u884c\u3046\u624b\u6cd5\u304c\u78ba\u7acb\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3060\u3068\u601d\u308f\u308c\u307e\u3059\uff0e\u78ba\u304b\u306b\uff0cLROC\u89e3\u6790\u3068FROC\u89e3\u6790\u306e\u3069\u3061\u3089\u306b\u3064\u3044\u3066\u3082\uff0c\u305d\u308c\u3089\u306e\u624b\u6cd5\u3092\u958b\u767a\uff0c\u63d0\u6848\u3059\u308b\u8ad6\u6587\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u304c[5,6]\uff0c\u305d\u308c\u3089\u306f\u3044\u305a\u308c\u3082\u307e\u3060\u78ba\u8a3c\u3055\u308c\u305f\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\uff0e\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u306e\u5834\u5408\u3082\uff0c\u4e00\u756a\u306e\u554f\u984c\u70b9\u306f\uff0c\u66f2\u7dda\u3092\u63a8\u5b9a\u3059\u308b\u306e\u306b\u7528\u3044\u308b\u30c7\u30fc\u30bf\u70b9\u304c\uff0c\u89b3\u5bdf\u8005\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3068\u3044\u3046\u3068\u3053\u308d\u306b\u3042\u308a\u307e\u3059\uff0e\u3064\u307e\u308a\uff0cROC\u89e3\u6790\u3067\u306f\uff0c\u540c\u3058\u8a66\u6599\u3092\u7528\u3044\u305f\u89b3\u5bdf\u8005\u5b9f\u9a13\u3067\u3042\u308c\u3070\uff0c\u8a55\u4fa1\u70b9\u306e\u6570\u3082\u5bfe\u8c61\u3082\u3059\u3079\u3066\u306e\u89b3\u5bdf\u8005\u306b\u3064\u3044\u3066\u540c\u4e00\u3067\u3059\u304c\uff0c\u4e0a\u8a18\u306e\uff12\u3064\u306e\u89e3\u6790\u6cd5\u3067\u306f\u89b3\u5bdf\u8005\u306b\u3088\u3063\u3066\uff0c\u30c7\u30fc\u30bf\u306e\u6570\u3084\u5bfe\u8c61\u304c\u9055\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\uff08\u3082\u3061\u308d\u3093\uff0c\u307e\u3063\u305f\u304f\u540c\u3058\u306b\u306a\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\uff09\uff0e\u305d\u306e\u305f\u3081\uff0c\u73fe\u6642\u70b9\u306b\u304a\u3044\u3066\u306f\uff0c\u89b3\u5bdf\u8005\u5b9f\u9a13\u306bLROC\u307e\u305f\u306fFROC\u89e3\u6790\u3060\u3051\u3092\u5358\u72ec\u3067\u7528\u3044\u308b\u3053\u3068\u306b\u306f\uff0c\u7d71\u8a08\u7684\u6709\u610f\u5dee\u691c\u5b9a\u304c\u56f0\u96e3\u3067\u3042\u308b\uff0c\u3068\u3044\u3046ROC\u89e3\u6790\u3088\u308a\u3082\u5927\u304d\u306a\u554f\u984c\u70b9\u304c\u3042\u308a\u307e\u3059\uff0e<\/p>\n

\u305d\u3053\u3067\u3053\u308c\u3089\u306e\u30b8\u30ec\u30f3\u30de\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\uff0c\u30b7\u30ab\u30b4\u5927\u5b66\u306e\u308f\u308c\u308f\u308c\u306e\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u3067\u306f\uff0c\u4ee5\u524d\u304b\u3089\u901a\u5e38\u306eROC\u89e3\u6790\u306e\u89b3\u5bdf\u8005\u5b9f\u9a13\u3092\u884c\u3046\u969b\u306b\uff0c\u89b3\u5bdf\u8005\u306b\u75c5\u5909\u306e\u4f4d\u7f6e\u3092\u793a\u3057\u3066\u3082\u3089\u3046\u65b9\u6cd5\u3092\u63a1\u7528\u3057\uff0cROC\u89e3\u6790\u3068\u540c\u6642\u306bLROC\u89e3\u6790\u306e\u305f\u3081\u306e\u5b9f\u9a13\u3082\u884c\u3046\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\uff0e\u3064\u307e\u308a\uff0cROC\u89e3\u6790\u3067\u5fc5\u8981\u5341\u5206\u306a\u30c7\u30fc\u30bf\u3092\u6c42\u3081\uff0c\u7d71\u8a08\u7684\u6709\u610f\u5dee\u691c\u5b9a\u3092\u884c\u3044\uff0c\u305d\u306e\u4e0a\u306b\uff0c\u3055\u3089\u306bROC\u89e3\u6790\u306e\u30c7\u30fc\u30bf\u3092\u88dc\u8db3\u3059\u308b\u610f\u5473\u3067\uff0cLROC\u66f2\u7dda\u3092\u8a08\u7b97\u3057\u3066\u793a\u3059\uff0c\u3068\u3044\u30462\u6bb5\u69cb\u3048\u306e\u5b9f\u9a13\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff0e\u4eca\u56de\u306eUsers Group News\u3067\u306f\uff0c\u591a\u304f\u306e\u65b9\u306b\u3053\u3046\u3044\u3063\u305f\u5b9f\u9a13\u65b9\u6cd5\u3092\u5b66\u3093\u3067\u3044\u305f\u3060\u304f\u305f\u3081\u306b\uff0c\u307e\u305a\uff0c\u7c21\u5358\u306bLROC\u306e\u7406\u8ad6\u306b\u3064\u3044\u3066\u8ff0\u3079\uff0c\u305d\u306e\u5f8c\u306b\uff0c\u901a\u5e38\u306eROC\u5b9f\u9a13\u30c7\u30fc\u30bf\u3068\u89b3\u5bdf\u8005\u304c\u793a\u3057\u305f\u4f4d\u7f6e\u60c5\u5831\u304b\u3089\uff0cROCKIT\u3068\u3044\u3063\u305fROC\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5fdc\u7528\u3057\u3066\uff0cLROC\u66f2\u7dda\u3092\u30d7\u30ed\u30c3\u30c8\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\uff0e<\/p>\n

2. LROC\u89e3\u6790\u306e\u7406\u8ad6[1]<\/p>\n

ROC\u89e3\u6790\u3067\u306f\uff0c\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u4fe1\u53f7\uff53\u306b\u3064\u3044\u3066\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u304c\u5b58\u5728\u3059\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PD\uff08S\uff5c\uff53\uff09 [\u771f\u967d\u6027\u7387 (TPF\uff1a True Positive Fraction) ] \u3092\uff0c\u5224\u65ad\u57fa\u6e96\u3068\u3044\u3046\u95be\u5024\u3092\u5909\u5316\u3055\u305b\u3066\u6c42\u3081\u3066\u3044\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cLROC\u3067\u306f\uff0c\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u4fe1\u53f7\uff53\u306b\u3064\u3044\u3066\uff0c\u6b63\u3057\u3044\u4f4d\u7f6eCL\u3067\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u3067\u3042\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PDL\uff08S,CL\uff5c\uff53\uff09\u3068\uff0c\u9593\u9055\u3063\u305f\u4f4d\u7f6eIL\u3067\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u304c\u5b58\u5728\u3059\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PDL\uff08S,IL\uff5c\uff53\uff09\u306e\uff12\u3064\u3092\u8003\u616e\u3057\u3066\u3044\u307e\u3059\uff0e\u3053\u3053\u3067\uff0cROC\u89e3\u6790\u3068LROC\u89e3\u6790\u306e\u305d\u308c\u305e\u308c\u306e\u78ba\u7387\u306f\uff0c\u4ee5\u4e0b\u306e\u5f0f\u3067\u95a2\u4fc2\u4ed8\u3051\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\uff0e<\/p>\n

PD\uff08S\uff5c\uff53\uff09\uff1dPDL\uff08S,CL\uff5c\uff53\uff09\uff0bPDL\uff08S,IL\uff5c\uff53\uff09 — (1)<\/p>\n

LROC\u89e3\u6790\u306b\u304a\u3044\u3066\uff0c\u5b9f\u969b\u306b\u4fe1\u53f7\u304c\u5b58\u5728\u3059\u308b\u306b\u304b\u304b\u308f\u3089\u305a\uff0c\u4f4d\u7f6e\u306e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u8a66\u6599\u306e\u30b9\u30b3\u30a2\u306f\uff0c\u201d\u9593\u9055\u3063\u3066\u4fe1\u53f7\u304c\u5b58\u5728\u3057\u306a\u3044\u201d \uff08FN: False Negative\uff09\u3068\u5224\u5b9a\u3057\u305f\u7d50\u679c\u3068\u3057\u3066\u898b\u306a\u3055\u308c\u307e\u3059\uff0e\u305d\u3057\u3066\uff0c\u305d\u306eFN\u306e\u78ba\u7387\u306f\u507d\u9670\u6027\u7387\uff08FNS\uff1aFalse Negative Fraction\uff09\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\uff0c\u3053\u308c\u304cPDL\uff08S,IL\uff5c\uff53\uff09\u306b\u540c\u3058\u610f\u5473\u3092\u6301\u3061\u307e\u3059\uff0e\u3064\u307e\u308a\uff0c\u523a\u6fc0-\u53cd\u5fdc\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306e\u7406\u8ad6\u306b\u304a\u3044\u3066\u306f\uff0cROC\u66f2\u7dda\u306e\u7e26\u8ef8\u3092\u793a\u3059TPF\u306f\uff0cTPF\uff1d1-FNF\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u3066\uff0c\u901a\u5e38\u306eROC\u89e3\u6790\u3067\u306fFNF=0\u3067\uff0cTPF\u306f1.0\u3067\u53ce\u675f\u3059\u308b\u306e\u3067\u3059\u304c\uff0cLROC\u89e3\u6790\u3067\u306f\uff0c\u524d\u8ff0\u306e\u3088\u3046\u306bFNF\u306f0\u3067\u306f\u306a\u304f\uff0c\u901a\u5e38\u306f0\u4ee5\u4e0a\u306e\u5024\u3068\u306a\u308a\u307e\u3059\u306e\u3067\uff0cLROC\u66f2\u7dda\u306e\u7e26\u8ef8\u306eTPF\u306f\uff0c\u307b\u3068\u3093\u3069\u306e\u5834\u5408\uff0cTPF\uff1c1.0\u3068\u306a\u308a\u307e\u3059\uff0e\u3082\u3046\u5c11\u3057\u5177\u4f53\u7684\u306b\u8ff0\u3079\u308b\u306a\u3089\u3070\uff0c100\u679a\u306e\u4fe1\u53f7\u50cf\u304c\u3042\u3063\u305f\u5834\u5408\uff0cROC\u89e3\u6790\u3067\u306f\uff0c\u6700\u7d42\u7684\u306b\u305d\u3053\u306b\u542b\u307e\u308c\u308b100\u500b\u306e\u4fe1\u53f7\u5168\u90e8\u304c\u691c\u51fa\u3055\u308c\u305f\u3068\u898b\u306a\u3057\u3066\u8a08\u7b97\u3055\u308c\u308b\u306e\u3067\uff0c\u6700\u7d42\u7684\u306aTPF\uff08\u611f\u5ea6\uff09\u306f1.0\uff08100\uff05\uff09\u306b\u306a\u308b\u306e\u3067\u3059\u304c\uff0cLROC\u89e3\u6790\u306e\u5834\u5408\u306f\uff0c\u4f4d\u7f6e\u304c\u6b63\u3057\u304f\u691c\u51fa\u3055\u308c\u306a\u304b\u3063\u305f\u4fe1\u53f7\u306f\uff0cTPF\u306b\u306f\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u305b\u3093\u306e\u3067\uff0c\u4f8b\u3048\u3070\uff0c100\u500b\u306e\u3046\u3061\uff0c10\u500b\u306e\u4fe1\u53f7\u306e\u4f4d\u7f6e\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u3068\u3057\u305f\u3089\uff0c\u6700\u7d42\u7684\u306aTPF\u306f\uff0c0.9\u306b\u3057\u304b\u306a\u308a\u307e\u305b\u3093\uff0e<\/p>\n

3. ROC\u89e3\u6790\u30bd\u30d5\u30c8\u3092\u7528\u3044\u305fLROC\u66f2\u7dda\u306e\u63a8\u5b9a<\/p>\n

\u901a\u5e38\u306eROC\u66f2\u7dda\u3092\u30bd\u30d5\u30c8\u30a6\u30a8\u30a2\uff08ROCKIT\uff09\u3092\u7528\u3044\u3066\u63a8\u5b9a\u3059\u308b\u5834\u5408\uff0cROCKIT\u3067\u7b97\u51fa\u3055\u308c\u308bTPF\u306f\uff0c\u524d\u8ff0\u306e\uff081\uff09\u5f0f\u306b\u793a\u3057\u305fPD\uff08S\uff5c\uff53\uff09\u306e\u7a4d\u5206\u5024\u3092\uff0c\u4fe1\u53f7\u3092\u542b\u3080\u8a66\u6599\u6570\u3067\u6a19\u6e96\u5316\u3057\u305f\u3082\u306e\u3068\u306a\u308a\u307e\u3059\uff0e\u305d\u3057\u3066\uff0c\u540c\u69d8\u306bLROC\u89e3\u6790\u3067\u7b97\u51fa\u3059\u308bTPF\u306f\uff0cPDL\uff08S,CL\uff5c\uff53\uff09\u306e\u7a4d\u5206\u5024\u3092\u4fe1\u53f7\u3092\u542b\u3080\u8a66\u6599\u6570\u3067\u6a19\u6e96\u5316\u3057\u305f\u3082\u306e\u3068\u306a\u308a\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cLROC\u306b\u304a\u3051\u308bPDL\uff08S,CL\uff5c\uff53\uff09\u3082\uff0cROC\u89e3\u6790\u306b\u304a\u3051\u308bPD\uff08S\uff5c\uff53\uff09\u3068\u540c\u69d8\u306b\u6b63\u898f\u5206\u5e03\u306b\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u304c\uff0c\u7406\u8ad6\u4e0a\u3067\u306f\u4eee\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u4e21\u6b63\u898f\u5206\u5e03ROC\u89e3\u6790\u306e\u7406\u8ad6\u3092\u7528\u3044\u3066\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\uff0e\u3064\u307e\u308a\uff0c\u524d\u8ff0\u306e\u4f8b\u3092\u7528\u3044\u308b\u3068\u3059\u308c\u3070\uff0c100\u679a\u306e\u4fe1\u53f7\u50cf\u3092\u7528\u3044\u305f\u5b9f\u9a13\u3067\uff0c\u6b63\u5e38\u50cf\u3082100\u679a\u3068\u3059\u308b\u3068\uff0cROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306b\u306f\uff0c\u4fe1\u53f7\u50cf100+\u6b63\u5e38\u50cf100\u306e\u3059\u3079\u3066\u306e\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\u3092\u7528\u3044\u3066\u8a08\u7b97\u3057\uff0cLROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306b\u306f\uff0c\u305d\u306e\u4e0b\u6e96\u5099\u3068\u3057\u3066\uff0c\u307e\u305a\uff0c\u4f4d\u7f6e\u304c\u9593\u9055\u3063\u3066\u3044\u305f10\u679a\u306e\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u3060\u3051\u3092\u9664\u3044\u305f\uff0c\u4fe1\u53f7\u50cf90+\u6b63\u5e38\u50cf100\u306e\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\u3092\u7528\u3044\u3066\u901a\u5e38\u306eROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff0e\u3053\u308c\u3060\u3051\u3067\u306f\u308f\u304b\u308a\u306b\u304f\u3044\u3068\u601d\u308f\u308c\u307e\u3059\u306e\u3067\uff0cROCKIT\u3092\u7528\u3044\u3066LROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u304a\u3088\u3073\u9762\u7a4d\u306e\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u3092\uff0c\u4ee5\u4e0b\u306b\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3059\uff0e<\/p>\n

A) \u901a\u5e38\u306eROC\u8a55\u5b9a\u5b9f\u9a13\u3092\u884c\u3046\u5834\u5408\u306b\uff0c\u5404\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\uff08\u4fe1\u53f7\u306e\u3042\u308b\u306a\u3057\u306e\u5224\u65ad\u57fa\u6e96\uff09\u306b\u52a0\u3048\u3066\uff0c\u4fe1\u53f7\u306e\u4f4d\u7f6e\u3092\u89b3\u5bdf\u8005\u306b\u6307\u5b9a\u3057\u3066\u3082\u3089\u3044\u307e\u3059\uff08\u660e\u304b\u306b\u4fe1\u53f7\u304c\u306a\u3044\u3068\u89b3\u5bdf\u8005\u304c\u601d\u3063\u305f\u5834\u5408\u3067\u3082\uff0c\u3069\u3053\u304b1\u7b87\u6240\u3092\u9078\u3093\u3067\u3082\u3089\u3046\u3088\u3046\u306b\u3057\u307e\u3059\uff09\uff0e\u3053\u306e\u5834\u5408\uff0c\u4f4d\u7f6e\u306e\u60c5\u5831\u306f\uff0c\u753b\u50cf\u3092\u8aad\u5f71\u3057\u3066\u3044\u308b\u30e2\u30cb\u30bf\u4e0a\uff08\u307e\u305f\u306f\u30d5\u30a3\u30eb\u30e0\u4e0a\uff09\u3067\u8a18\u9332\u3067\u304d\u308b\u3088\u3046\u306a\u65b9\u6cd5\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u304c\uff0c\u305d\u308c\u304c\u56f0\u96e3\u306a\u5834\u5408\u306f\uff0c\u8a66\u6599\u306e\u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u3066\uff0c\u8a66\u6599\u5168\u4f53\u30924\u5206\u5272\uff0c9\u5206\u5272\uff0c16\u5206\u5272\u306b\u3057\u3066\uff0c\u305d\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u756a\u53f7\u3067\u56de\u7b54\u3092\u5f97\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\uff0e<\/p>\n

B) \u5168\u90e8\u306e\u4fe1\u53f7\u50cf\u306b\u4e0e\u3048\u3089\u308c\u305f\u4f4d\u7f6e\u306e\u30c7\u30fc\u30bf\u304b\u3089\uff0c\u4f4d\u7f6e\u306e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u8a66\u6599\u306e\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\uff0c\u307e\u305f\uff0c\u305d\u308c\u3089\u306e\u753b\u50cf\u306e\u8a55\u4fa1\u70b9\u3092\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u304b\u3089\u524a\u9664\u3057\u307e\u3059\uff0e<\/p>\n

C) \u4f4d\u7f6e\u9593\u9055\u3044\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u524a\u9664\u5f8c\u306e\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u3068\uff0c\u5168\u90e8\u306e\u6b63\u5e38\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u3092ROCKIT\u306b\u5165\u529b\u3057\u3066\uff0c\u901a\u5e38\u306eROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\uff0e<\/p>\n

D) \u7b97\u51fa\u3055\u308c\u305fTPF\u306e\u30c7\u30fc\u30bf\uff08\u3053\u306e\u6642\u70b9\u3067\u306f\uff0cFPF=1.0\u306e\u3068\u304d\u306bTPF=1.0\u3068\u306a\u3063\u3066\u3044\u308b\u901a\u5e38\u306eROC\u66f2\u7dda\u306e\u30c7\u30fc\u30bf\u3067\u3059\uff09\u306b\uff08T-D\uff09\/T\u306e\u5024\u3092\u4e57\u3058\u3066\uff0cLROC\u66f2\u7dda\u306eTPF\u5024\u3092\u6c42\u3081\u307e\u3059\uff0e\u3053\u3053\u3067\uff0cT\u306f\u5168\u4fe1\u53f7\u50cf\u306e\u6570\uff0cD\u306f\u4f4d\u7f6e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u4fe1\u53f7\u50cf\u306e\u679a\u6570\uff08\uff1d\u524a\u9664\u3057\u305f\u30c7\u30fc\u30bf\u6570\uff09\u3092\u8868\u3057\u307e\u3059\uff0e<\/p>\n

E) LROC\u66f2\u7dda\u4e0b\u306e\u9762\u7a4d\uff08\u3053\u308c\u3092AZ\u3068\u8aad\u3093\u3067\u826f\u3044\u306e\u304b\u3069\u3046\u304b\u306f\u4e0d\u660e\uff0e\u305f\u3076\u3093\u4e0d\u9069\u5f53\uff1f\uff09\u3092\u7b97\u51fa\u3057\u305f\u3044\u5834\u5408\u306b\u306f\uff0c\u3053\u308c\u3089\u306eTPF\u5024\u3092\u7528\u3044\u3066\uff0c\u53f0\u5f62\u8fd1\u4f3c\u3082\u3057\u304f\u306fWilcoxon\u8fd1\u4f3c\u3067\u9762\u7a4d\u3092\u6c42\u3081\u307e\u3059\uff0e<\/p>\n

\"Fig.1
Fig.1 \u4eee\u306b\u4fe1\u53f7\u50cf90\uff0b\u6b63\u5e38\u50cf100\u3067\u8a08\u7b97\u3057\u305fROC\u66f2\u7dda\uff08\u5de6\uff09\u3068\u305d\u3053\u304b\u3089\u7b97\u51fa\u3057\u305fLROC\u66f2\u7dda\uff08\u53f3\uff09<\/figcaption><\/figure>
\n <\/p>\n

\u4ee5\u4e0a\u306e\u65b9\u6cd5\u3067\uff0cLROC\u66f2\u7dda\u3092\u5f97\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u304c\u5f97\u3089\u308c\u307e\u3059\uff0e\u3053\u306e\u65b9\u6cd5\u3067\u5f97\u3089\u308c\u308bROC\u66f2\u7dda\u3068LROC\u66f2\u7dda\u306e\u95a2\u4fc2\u3092\u793a\u3057\u305f\u306e\u304cFig.1\u3067\u3059\uff0eLROC\u306eTPF\u304c\u5230\u9054\u3059\u308b\u5024\u306fFN\u3068\u5224\u5b9a\u3055\u308c\u305f\u8a66\u6599\u306e\u30c7\u30fc\u30bf\u6570\u306b\u3088\u3063\u3066\u6c7a\u307e\u308b\u306e\u3067\uff0c\u6700\u521d\u306bTPF=1.0\u3068\u306a\u308b\u3053\u3068\u3092\u4eee\u5b9a\u3057\u3066\uff0cROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\uff0c\u6b21\u306b\u5168\u4f53\u306e\u5024\u3092\uff08\uff11\uff0dFNF\uff09\u3067\u88dc\u6b63\u3057\u3066\uff0cLROC\u66f2\u7dda\u3092\u6c42\u3081\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3067\u3059\uff0e<\/p>\n

\uff14. \u307e\u3068\u3081<\/p>\n

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\u4eca\u56de\u306fLROC\u89e3\u6790\u3060\u3051\u306b\u3064\u3044\u3066\u89e3\u8aac\u3092\u884c\u3044\u307e\u3057\u305f\u304c\uff0c\u8fd1\u3044\u3046\u3061\u306b\u4eca\u5ea6\u306fFROC\u89e3\u6790\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3092\u884c\u3044\u305f\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3059\uff0e<\/p>\n

\uff0d\u53c2\u8003\u6587\u732e\uff0d<\/p>\n

[1] Stuart J, Starr BS, Metz CE, et.al.: Visual Detection and Localization of Radiographic Images, Radiology, 116, 533-538,1975.<\/p>\n

[2] Bunch PC, Hamilton JF, Sanderson GK, and Simmons AH: A Free Response Approach to the Measurement and Characterization of Radiographic Observer Performance, SPIE, 127, 124-135, 1977.<\/p>\n

[3] Chakraborty DP, Breatnach EA, Yester MV, et.al.: Digital and conventional chest Imaging: a modified ROC study of observer performance using simulated nodules. Radiology, 158, 35-39, 1986.<\/p>\n

[4] Chakraborty DP, Winter LH.: Free-Response Methodology: Alternative Analysis and a New Observer-Performance Experiment. Radiology, 174, 873-881, 1990.<\/p>\n

[5] Swensson RG: Unified measurement of observer performance in detecting and localizing target objects on images. Med Phys. 23, 1709-25, 1996.<\/p>\n

[6] Chakraborty DP: Statistical power in observer-performance studies: comparison of the receiver operating characteristic and free-response methods in tasks involving localization. Acad Radiol. 9, 147-56, 2002.<\/p>\n","protected":false},"excerpt":{"rendered":"

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curve for task of detection and localization\uff09[1]\u3068FROC\uff08free-response receiver operating characteristic\uff09[2-4]\u3068\u3044\u3046\uff12\u3064\u306e\u89e3\u6790\u6cd5\u304c\u4ee5\u524d\u3088\u308a\u3082\u983b\u7e41\u306b\u8a71\u984c\u306b\u4e0a\u304c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u307e\u3057\u305f\uff0e LROC\u306fROC\u89e3\u6790\u3092\u958b\u767a\u3057\u305f\u306e\u3068\u540c\u3058\u30b7\u30ab\u30b4\u5927\u5b66\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u958b\u767a\u3055\u308c\u305f\u89e3\u6790\u6cd5\u3067\uff0c\u7406\u8ad6\u7684\u80cc\u666f\u306fROC\u89e3\u6790\u3068\u307b\u307c\u540c\u3058\u3068\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cFROC\u89e3\u6790\u306f\u540d\u524d\u306f\u4f3c\u3066\u3044\u308b\u3082\u306e\u306e\uff0cROC\u89e3\u6790\u3068\u306f\u3060\u3044\u3076\u5185\u5bb9\u304c\u7570\u306a\u3063\u3066\u304a\u308a\uff0c\u7406\u8ad6\u7684\u80cc\u666f\u3084\u8868\u793a\u6cd5\u304cROC\u89e3\u6790\u3068\u306f\u7570\u306a\u308a\u307e\u3059\uff0e\u3053\u3053\u3067\u6ce8\u610f\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u306e\u306f\uff0c\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u3082\uff0cROC\u89e3\u6790\u3068\u540c\u3058\u304f\u3089\u3044\u53e4\u304f\u304b\u3089\u3042\u308b\u306e\u306b\uff0cROC\u89e3\u6790\u307b\u3069\u666e\u53ca\u3057\u3066\u3044\u306a\u3044\uff0c\u3068\u3044\u3046\u3053\u3068\u3067\u3059\uff0e\u305d\u306e\u7406\u7531\u306f\uff0c\u3053\u306e\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u3082ROC\u89e3\u6790\u306e\u3088\u3046\u306b\uff0cROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u305f\u3081\u306e\u7d71\u8a08\u7684\u63a8\u5b9a\u6cd5\u3084\uff0c\u66f2\u7dda\u9593\u306e\u7d71\u8a08\u7684\u6709\u610f\u5dee\u306e\u691c\u5b9a\u3092\u884c\u3046\u624b\u6cd5\u304c\u78ba\u7acb\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3060\u3068\u601d\u308f\u308c\u307e\u3059\uff0e\u78ba\u304b\u306b\uff0cLROC\u89e3\u6790\u3068FROC\u89e3\u6790\u306e\u3069\u3061\u3089\u306b\u3064\u3044\u3066\u3082\uff0c\u305d\u308c\u3089\u306e\u624b\u6cd5\u3092\u958b\u767a\uff0c\u63d0\u6848\u3059\u308b\u8ad6\u6587\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u304c[5,6]\uff0c\u305d\u308c\u3089\u306f\u3044\u305a\u308c\u3082\u307e\u3060\u78ba\u8a3c\u3055\u308c\u305f\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\uff0e\u3069\u3061\u3089\u306e\u89e3\u6790\u6cd5\u306e\u5834\u5408\u3082\uff0c\u4e00\u756a\u306e\u554f\u984c\u70b9\u306f\uff0c\u66f2\u7dda\u3092\u63a8\u5b9a\u3059\u308b\u306e\u306b\u7528\u3044\u308b\u30c7\u30fc\u30bf\u70b9\u304c\uff0c\u89b3\u5bdf\u8005\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3068\u3044\u3046\u3068\u3053\u308d\u306b\u3042\u308a\u307e\u3059\uff0e\u3064\u307e\u308a\uff0cROC\u89e3\u6790\u3067\u306f\uff0c\u540c\u3058\u8a66\u6599\u3092\u7528\u3044\u305f\u89b3\u5bdf\u8005\u5b9f\u9a13\u3067\u3042\u308c\u3070\uff0c\u8a55\u4fa1\u70b9\u306e\u6570\u3082\u5bfe\u8c61\u3082\u3059\u3079\u3066\u306e\u89b3\u5bdf\u8005\u306b\u3064\u3044\u3066\u540c\u4e00\u3067\u3059\u304c\uff0c\u4e0a\u8a18\u306e\uff12\u3064\u306e\u89e3\u6790\u6cd5\u3067\u306f\u89b3\u5bdf\u8005\u306b\u3088\u3063\u3066\uff0c\u30c7\u30fc\u30bf\u306e\u6570\u3084\u5bfe\u8c61\u304c\u9055\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\uff08\u3082\u3061\u308d\u3093\uff0c\u307e\u3063\u305f\u304f\u540c\u3058\u306b\u306a\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\uff09\uff0e\u305d\u306e\u305f\u3081\uff0c\u73fe\u6642\u70b9\u306b\u304a\u3044\u3066\u306f\uff0c\u89b3\u5bdf\u8005\u5b9f\u9a13\u306bLROC\u307e\u305f\u306fFROC\u89e3\u6790\u3060\u3051\u3092\u5358\u72ec\u3067\u7528\u3044\u308b\u3053\u3068\u306b\u306f\uff0c\u7d71\u8a08\u7684\u6709\u610f\u5dee\u691c\u5b9a\u304c\u56f0\u96e3\u3067\u3042\u308b\uff0c\u3068\u3044\u3046ROC\u89e3\u6790\u3088\u308a\u3082\u5927\u304d\u306a\u554f\u984c\u70b9\u304c\u3042\u308a\u307e\u3059\uff0e \u305d\u3053\u3067\u3053\u308c\u3089\u306e\u30b8\u30ec\u30f3\u30de\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\uff0c\u30b7\u30ab\u30b4\u5927\u5b66\u306e\u308f\u308c\u308f\u308c\u306e\u7814\u7a76\u30b0\u30eb\u30fc\u30d7\u3067\u306f\uff0c\u4ee5\u524d\u304b\u3089\u901a\u5e38\u306eROC\u89e3\u6790\u306e\u89b3\u5bdf\u8005\u5b9f\u9a13\u3092\u884c\u3046\u969b\u306b\uff0c\u89b3\u5bdf\u8005\u306b\u75c5\u5909\u306e\u4f4d\u7f6e\u3092\u793a\u3057\u3066\u3082\u3089\u3046\u65b9\u6cd5\u3092\u63a1\u7528\u3057\uff0cROC\u89e3\u6790\u3068\u540c\u6642\u306bLROC\u89e3\u6790\u306e\u305f\u3081\u306e\u5b9f\u9a13\u3082\u884c\u3046\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\uff0e\u3064\u307e\u308a\uff0cROC\u89e3\u6790\u3067\u5fc5\u8981\u5341\u5206\u306a\u30c7\u30fc\u30bf\u3092\u6c42\u3081\uff0c\u7d71\u8a08\u7684\u6709\u610f\u5dee\u691c\u5b9a\u3092\u884c\u3044\uff0c\u305d\u306e\u4e0a\u306b\uff0c\u3055\u3089\u306bROC\u89e3\u6790\u306e\u30c7\u30fc\u30bf\u3092\u88dc\u8db3\u3059\u308b\u610f\u5473\u3067\uff0cLROC\u66f2\u7dda\u3092\u8a08\u7b97\u3057\u3066\u793a\u3059\uff0c\u3068\u3044\u30462\u6bb5\u69cb\u3048\u306e\u5b9f\u9a13\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff0e\u4eca\u56de\u306eUsers Group News\u3067\u306f\uff0c\u591a\u304f\u306e\u65b9\u306b\u3053\u3046\u3044\u3063\u305f\u5b9f\u9a13\u65b9\u6cd5\u3092\u5b66\u3093\u3067\u3044\u305f\u3060\u304f\u305f\u3081\u306b\uff0c\u307e\u305a\uff0c\u7c21\u5358\u306bLROC\u306e\u7406\u8ad6\u306b\u3064\u3044\u3066\u8ff0\u3079\uff0c\u305d\u306e\u5f8c\u306b\uff0c\u901a\u5e38\u306eROC\u5b9f\u9a13\u30c7\u30fc\u30bf\u3068\u89b3\u5bdf\u8005\u304c\u793a\u3057\u305f\u4f4d\u7f6e\u60c5\u5831\u304b\u3089\uff0cROCKIT\u3068\u3044\u3063\u305fROC\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5fdc\u7528\u3057\u3066\uff0cLROC\u66f2\u7dda\u3092\u30d7\u30ed\u30c3\u30c8\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\uff0e 2. LROC\u89e3\u6790\u306e\u7406\u8ad6[1] ROC\u89e3\u6790\u3067\u306f\uff0c\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u4fe1\u53f7\uff53\u306b\u3064\u3044\u3066\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u304c\u5b58\u5728\u3059\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PD\uff08S\uff5c\uff53\uff09 [\u771f\u967d\u6027\u7387 (TPF\uff1a True Positive Fraction) ] \u3092\uff0c\u5224\u65ad\u57fa\u6e96\u3068\u3044\u3046\u95be\u5024\u3092\u5909\u5316\u3055\u305b\u3066\u6c42\u3081\u3066\u3044\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cLROC\u3067\u306f\uff0c\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u4fe1\u53f7\uff53\u306b\u3064\u3044\u3066\uff0c\u6b63\u3057\u3044\u4f4d\u7f6eCL\u3067\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u3067\u3042\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PDL\uff08S,CL\uff5c\uff53\uff09\u3068\uff0c\u9593\u9055\u3063\u305f\u4f4d\u7f6eIL\u3067\uff0c\u6b63\u3057\u304f\u4fe1\u53f7S\u304c\u5b58\u5728\u3059\u308b\u3068\u691c\u51fa\u3059\u308b\u78ba\u7387PDL\uff08S,IL\uff5c\uff53\uff09\u306e\uff12\u3064\u3092\u8003\u616e\u3057\u3066\u3044\u307e\u3059\uff0e\u3053\u3053\u3067\uff0cROC\u89e3\u6790\u3068LROC\u89e3\u6790\u306e\u305d\u308c\u305e\u308c\u306e\u78ba\u7387\u306f\uff0c\u4ee5\u4e0b\u306e\u5f0f\u3067\u95a2\u4fc2\u4ed8\u3051\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\uff0e PD\uff08S\uff5c\uff53\uff09\uff1dPDL\uff08S,CL\uff5c\uff53\uff09\uff0bPDL\uff08S,IL\uff5c\uff53\uff09 — (1) LROC\u89e3\u6790\u306b\u304a\u3044\u3066\uff0c\u5b9f\u969b\u306b\u4fe1\u53f7\u304c\u5b58\u5728\u3059\u308b\u306b\u304b\u304b\u308f\u3089\u305a\uff0c\u4f4d\u7f6e\u306e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u8a66\u6599\u306e\u30b9\u30b3\u30a2\u306f\uff0c\u201d\u9593\u9055\u3063\u3066\u4fe1\u53f7\u304c\u5b58\u5728\u3057\u306a\u3044\u201d \uff08FN: False Negative\uff09\u3068\u5224\u5b9a\u3057\u305f\u7d50\u679c\u3068\u3057\u3066\u898b\u306a\u3055\u308c\u307e\u3059\uff0e\u305d\u3057\u3066\uff0c\u305d\u306eFN\u306e\u78ba\u7387\u306f\u507d\u9670\u6027\u7387\uff08FNS\uff1aFalse Negative Fraction\uff09\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\uff0c\u3053\u308c\u304cPDL\uff08S,IL\uff5c\uff53\uff09\u306b\u540c\u3058\u610f\u5473\u3092\u6301\u3061\u307e\u3059\uff0e\u3064\u307e\u308a\uff0c\u523a\u6fc0-\u53cd\u5fdc\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306e\u7406\u8ad6\u306b\u304a\u3044\u3066\u306f\uff0cROC\u66f2\u7dda\u306e\u7e26\u8ef8\u3092\u793a\u3059TPF\u306f\uff0cTPF\uff1d1-FNF\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u3066\uff0c\u901a\u5e38\u306eROC\u89e3\u6790\u3067\u306fFNF=0\u3067\uff0cTPF\u306f1.0\u3067\u53ce\u675f\u3059\u308b\u306e\u3067\u3059\u304c\uff0cLROC\u89e3\u6790\u3067\u306f\uff0c\u524d\u8ff0\u306e\u3088\u3046\u306bFNF\u306f0\u3067\u306f\u306a\u304f\uff0c\u901a\u5e38\u306f0\u4ee5\u4e0a\u306e\u5024\u3068\u306a\u308a\u307e\u3059\u306e\u3067\uff0cLROC\u66f2\u7dda\u306e\u7e26\u8ef8\u306eTPF\u306f\uff0c\u307b\u3068\u3093\u3069\u306e\u5834\u5408\uff0cTPF\uff1c1.0\u3068\u306a\u308a\u307e\u3059\uff0e\u3082\u3046\u5c11\u3057\u5177\u4f53\u7684\u306b\u8ff0\u3079\u308b\u306a\u3089\u3070\uff0c100\u679a\u306e\u4fe1\u53f7\u50cf\u304c\u3042\u3063\u305f\u5834\u5408\uff0cROC\u89e3\u6790\u3067\u306f\uff0c\u6700\u7d42\u7684\u306b\u305d\u3053\u306b\u542b\u307e\u308c\u308b100\u500b\u306e\u4fe1\u53f7\u5168\u90e8\u304c\u691c\u51fa\u3055\u308c\u305f\u3068\u898b\u306a\u3057\u3066\u8a08\u7b97\u3055\u308c\u308b\u306e\u3067\uff0c\u6700\u7d42\u7684\u306aTPF\uff08\u611f\u5ea6\uff09\u306f1.0\uff08100\uff05\uff09\u306b\u306a\u308b\u306e\u3067\u3059\u304c\uff0cLROC\u89e3\u6790\u306e\u5834\u5408\u306f\uff0c\u4f4d\u7f6e\u304c\u6b63\u3057\u304f\u691c\u51fa\u3055\u308c\u306a\u304b\u3063\u305f\u4fe1\u53f7\u306f\uff0cTPF\u306b\u306f\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u305b\u3093\u306e\u3067\uff0c\u4f8b\u3048\u3070\uff0c100\u500b\u306e\u3046\u3061\uff0c10\u500b\u306e\u4fe1\u53f7\u306e\u4f4d\u7f6e\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u3068\u3057\u305f\u3089\uff0c\u6700\u7d42\u7684\u306aTPF\u306f\uff0c0.9\u306b\u3057\u304b\u306a\u308a\u307e\u305b\u3093\uff0e 3. ROC\u89e3\u6790\u30bd\u30d5\u30c8\u3092\u7528\u3044\u305fLROC\u66f2\u7dda\u306e\u63a8\u5b9a \u901a\u5e38\u306eROC\u66f2\u7dda\u3092\u30bd\u30d5\u30c8\u30a6\u30a8\u30a2\uff08ROCKIT\uff09\u3092\u7528\u3044\u3066\u63a8\u5b9a\u3059\u308b\u5834\u5408\uff0cROCKIT\u3067\u7b97\u51fa\u3055\u308c\u308bTPF\u306f\uff0c\u524d\u8ff0\u306e\uff081\uff09\u5f0f\u306b\u793a\u3057\u305fPD\uff08S\uff5c\uff53\uff09\u306e\u7a4d\u5206\u5024\u3092\uff0c\u4fe1\u53f7\u3092\u542b\u3080\u8a66\u6599\u6570\u3067\u6a19\u6e96\u5316\u3057\u305f\u3082\u306e\u3068\u306a\u308a\u307e\u3059\uff0e\u305d\u3057\u3066\uff0c\u540c\u69d8\u306bLROC\u89e3\u6790\u3067\u7b97\u51fa\u3059\u308bTPF\u306f\uff0cPDL\uff08S,CL\uff5c\uff53\uff09\u306e\u7a4d\u5206\u5024\u3092\u4fe1\u53f7\u3092\u542b\u3080\u8a66\u6599\u6570\u3067\u6a19\u6e96\u5316\u3057\u305f\u3082\u306e\u3068\u306a\u308a\u307e\u3059\uff0e\u3057\u304b\u3057\uff0cLROC\u306b\u304a\u3051\u308bPDL\uff08S,CL\uff5c\uff53\uff09\u3082\uff0cROC\u89e3\u6790\u306b\u304a\u3051\u308bPD\uff08S\uff5c\uff53\uff09\u3068\u540c\u69d8\u306b\u6b63\u898f\u5206\u5e03\u306b\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u304c\uff0c\u7406\u8ad6\u4e0a\u3067\u306f\u4eee\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u4e21\u6b63\u898f\u5206\u5e03ROC\u89e3\u6790\u306e\u7406\u8ad6\u3092\u7528\u3044\u3066\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\uff0e\u3064\u307e\u308a\uff0c\u524d\u8ff0\u306e\u4f8b\u3092\u7528\u3044\u308b\u3068\u3059\u308c\u3070\uff0c100\u679a\u306e\u4fe1\u53f7\u50cf\u3092\u7528\u3044\u305f\u5b9f\u9a13\u3067\uff0c\u6b63\u5e38\u50cf\u3082100\u679a\u3068\u3059\u308b\u3068\uff0cROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306b\u306f\uff0c\u4fe1\u53f7\u50cf100+\u6b63\u5e38\u50cf100\u306e\u3059\u3079\u3066\u306e\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\u3092\u7528\u3044\u3066\u8a08\u7b97\u3057\uff0cLROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306b\u306f\uff0c\u305d\u306e\u4e0b\u6e96\u5099\u3068\u3057\u3066\uff0c\u307e\u305a\uff0c\u4f4d\u7f6e\u304c\u9593\u9055\u3063\u3066\u3044\u305f10\u679a\u306e\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u3060\u3051\u3092\u9664\u3044\u305f\uff0c\u4fe1\u53f7\u50cf90+\u6b63\u5e38\u50cf100\u306e\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\u3092\u7528\u3044\u3066\u901a\u5e38\u306eROC\u66f2\u7dda\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff0e\u3053\u308c\u3060\u3051\u3067\u306f\u308f\u304b\u308a\u306b\u304f\u3044\u3068\u601d\u308f\u308c\u307e\u3059\u306e\u3067\uff0cROCKIT\u3092\u7528\u3044\u3066LROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u304a\u3088\u3073\u9762\u7a4d\u306e\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u3092\uff0c\u4ee5\u4e0b\u306b\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3059\uff0e A) \u901a\u5e38\u306eROC\u8a55\u5b9a\u5b9f\u9a13\u3092\u884c\u3046\u5834\u5408\u306b\uff0c\u5404\u753b\u50cf\u306b\u5bfe\u3059\u308b\u8a55\u4fa1\u70b9\uff08\u4fe1\u53f7\u306e\u3042\u308b\u306a\u3057\u306e\u5224\u65ad\u57fa\u6e96\uff09\u306b\u52a0\u3048\u3066\uff0c\u4fe1\u53f7\u306e\u4f4d\u7f6e\u3092\u89b3\u5bdf\u8005\u306b\u6307\u5b9a\u3057\u3066\u3082\u3089\u3044\u307e\u3059\uff08\u660e\u304b\u306b\u4fe1\u53f7\u304c\u306a\u3044\u3068\u89b3\u5bdf\u8005\u304c\u601d\u3063\u305f\u5834\u5408\u3067\u3082\uff0c\u3069\u3053\u304b1\u7b87\u6240\u3092\u9078\u3093\u3067\u3082\u3089\u3046\u3088\u3046\u306b\u3057\u307e\u3059\uff09\uff0e\u3053\u306e\u5834\u5408\uff0c\u4f4d\u7f6e\u306e\u60c5\u5831\u306f\uff0c\u753b\u50cf\u3092\u8aad\u5f71\u3057\u3066\u3044\u308b\u30e2\u30cb\u30bf\u4e0a\uff08\u307e\u305f\u306f\u30d5\u30a3\u30eb\u30e0\u4e0a\uff09\u3067\u8a18\u9332\u3067\u304d\u308b\u3088\u3046\u306a\u65b9\u6cd5\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u304c\uff0c\u305d\u308c\u304c\u56f0\u96e3\u306a\u5834\u5408\u306f\uff0c\u8a66\u6599\u306e\u30b5\u30a4\u30ba\u306b\u5fdc\u3058\u3066\uff0c\u8a66\u6599\u5168\u4f53\u30924\u5206\u5272\uff0c9\u5206\u5272\uff0c16\u5206\u5272\u306b\u3057\u3066\uff0c\u305d\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u756a\u53f7\u3067\u56de\u7b54\u3092\u5f97\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\uff0e B) \u5168\u90e8\u306e\u4fe1\u53f7\u50cf\u306b\u4e0e\u3048\u3089\u308c\u305f\u4f4d\u7f6e\u306e\u30c7\u30fc\u30bf\u304b\u3089\uff0c\u4f4d\u7f6e\u306e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u8a66\u6599\u306e\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3057\uff0c\u307e\u305f\uff0c\u305d\u308c\u3089\u306e\u753b\u50cf\u306e\u8a55\u4fa1\u70b9\u3092\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u304b\u3089\u524a\u9664\u3057\u307e\u3059\uff0e C) \u4f4d\u7f6e\u9593\u9055\u3044\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u524a\u9664\u5f8c\u306e\u4fe1\u53f7\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u3068\uff0c\u5168\u90e8\u306e\u6b63\u5e38\u50cf\u306e\u8a55\u4fa1\u70b9\u30c7\u30fc\u30bf\u3092ROCKIT\u306b\u5165\u529b\u3057\u3066\uff0c\u901a\u5e38\u306eROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\uff0e D) \u7b97\u51fa\u3055\u308c\u305fTPF\u306e\u30c7\u30fc\u30bf\uff08\u3053\u306e\u6642\u70b9\u3067\u306f\uff0cFPF=1.0\u306e\u3068\u304d\u306bTPF=1.0\u3068\u306a\u3063\u3066\u3044\u308b\u901a\u5e38\u306eROC\u66f2\u7dda\u306e\u30c7\u30fc\u30bf\u3067\u3059\uff09\u306b\uff08T-D\uff09\/T\u306e\u5024\u3092\u4e57\u3058\u3066\uff0cLROC\u66f2\u7dda\u306eTPF\u5024\u3092\u6c42\u3081\u307e\u3059\uff0e\u3053\u3053\u3067\uff0cT\u306f\u5168\u4fe1\u53f7\u50cf\u306e\u6570\uff0cD\u306f\u4f4d\u7f6e\u691c\u51fa\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u4fe1\u53f7\u50cf\u306e\u679a\u6570\uff08\uff1d\u524a\u9664\u3057\u305f\u30c7\u30fc\u30bf\u6570\uff09\u3092\u8868\u3057\u307e\u3059\uff0e E) LROC\u66f2\u7dda\u4e0b\u306e\u9762\u7a4d\uff08\u3053\u308c\u3092AZ\u3068\u8aad\u3093\u3067\u826f\u3044\u306e\u304b\u3069\u3046\u304b\u306f\u4e0d\u660e\uff0e\u305f\u3076\u3093\u4e0d\u9069\u5f53\uff1f\uff09\u3092\u7b97\u51fa\u3057\u305f\u3044\u5834\u5408\u306b\u306f\uff0c\u3053\u308c\u3089\u306eTPF\u5024\u3092\u7528\u3044\u3066\uff0c\u53f0\u5f62\u8fd1\u4f3c\u3082\u3057\u304f\u306fWilcoxon\u8fd1\u4f3c\u3067\u9762\u7a4d\u3092\u6c42\u3081\u307e\u3059\uff0e   \u4ee5\u4e0a\u306e\u65b9\u6cd5\u3067\uff0cLROC\u66f2\u7dda\u3092\u5f97\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u304c\u5f97\u3089\u308c\u307e\u3059\uff0e\u3053\u306e\u65b9\u6cd5\u3067\u5f97\u3089\u308c\u308bROC\u66f2\u7dda\u3068LROC\u66f2\u7dda\u306e\u95a2\u4fc2\u3092\u793a\u3057\u305f\u306e\u304cFig.1\u3067\u3059\uff0eLROC\u306eTPF\u304c\u5230\u9054\u3059\u308b\u5024\u306fFN\u3068\u5224\u5b9a\u3055\u308c\u305f\u8a66\u6599\u306e\u30c7\u30fc\u30bf\u6570\u306b\u3088\u3063\u3066\u6c7a\u307e\u308b\u306e\u3067\uff0c\u6700\u521d\u306bTPF=1.0\u3068\u306a\u308b\u3053\u3068\u3092\u4eee\u5b9a\u3057\u3066\uff0cROC\u66f2\u7dda\u306e\u30ab\u30fc\u30d6\u30d5\u30a3\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3044\uff0c\u6b21\u306b\u5168\u4f53\u306e\u5024\u3092\uff08\uff11\uff0dFNF\uff09\u3067\u88dc\u6b63\u3057\u3066\uff0cLROC\u66f2\u7dda\u3092\u6c42\u3081\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3067\u3059\uff0e \uff14. \u307e\u3068\u3081 … Continue reading ROC\u89e3\u6790\u306e\u554f\u984c\u70b9\u3092\u88dc\u3046\u305f\u3081\u306eLROC\u89e3\u6790<\/span> 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