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\u5224\u65ad\u306e\u57fa\u6e96\u3065\u304f\u308a\u3082\u5b9f\u52d9\u306e\u809d\u3060\u3002\u6545\u969c\u4e88\u77e5\u3067\u306f\u300c\u53d6\u308a\u3053\u307c\u3057\uff08\u898b\u9003\u3057\uff09\u300d\u3068\u300c\u8aa4\u8b66\u5831\u300d\u306e\u91cd\u307f\u304c\u5fc5\u305a\u3057\u3082\u540c\u3058\u3067\u306f\u306a\u3044\u3002\u4f8b\u3048\u3070\u3001\u898b\u9003\u3057\u306e\u30b3\u30b9\u30c8\u304c\u6841\u9055\u3044\u306b\u5927\u304d\u3044\u306a\u3089\u3001\u518d\u73fe\u7387\u3092\u512a\u5148\u3057\u3066\u95be\u5024\u3092\u4e0b\u3052\u3001\u8aa4\u8b66\u5831\u306f\u5f8c\u6bb5\u306e\u70b9\u691c\u3067\u7d5e\u308b\u904b\u7528\u306b\u5bc4\u305b\u308b\u3079\u304d\u3060\u3002\u3053\u306e\u65b9\u91dd\u306f\u3001\u305d\u306e\u307e\u307e\u30b3\u30b9\u30c8\u611f\u5ea6\u5b66\u7fd2\u306e\u30b3\u30b9\u30c8\u884c\u5217\u306b\u843d\u3068\u3057\u8fbc\u3081\u308b\u3002\u8a55\u4fa1\u6bb5\u968e\u3067\u306f\u3001PR\u66f2\u7dda\u3092\u7528\u3044\u3066\u300c\u5fc5\u8981\u306a\u518d\u73fe\u7387\u306b\u5bfe\u3057\u3066\u9069\u5408\u7387\u304c\u3069\u308c\u3060\u3051\u78ba\u4fdd\u3067\u304d\u308b\u304b\u300d\u3092\u78ba\u8a8d\u3057\u3001\u5408\u308f\u305b\u3066ROC\u66f2\u7dda\u3067\u30e2\u30c7\u30eb\u56fa\u6709\u306e\u8b58\u5225\u529b\uff08\u4e0d\u5747\u8861\u306b\u4f9d\u5b58\u3057\u306b\u304f\u3044\u898b\u3048\u65b9\uff09\u3082\u70b9\u691c\u3057\u3066\u304a\u304f\u3068\u3001\u904e\u5927\u8a55\u4fa1\u30fb\u904e\u5c0f\u8a55\u4fa1\u3092\u907f\u3051\u3084\u3059\u3044\u3002[3][5][2]\n\n\n\n
\u4ee3\u8868\u7684\u306a\u843d\u3068\u3057\u7a74\u3068\u56de\u907f\u7b56\u3092\u6319\u3052\u308b\u3002- \u8aa4\u308a1\uff1a\u6b63\u89e3\u7387\u3067\u30e2\u30c7\u30eb\u3092\u9078\u3076\u3002\u56de\u907f\uff1aF1\u3001PR-AUC\u3001\u518d\u73fe\u7387\u30fb\u9069\u5408\u7387\u306e\u6240\u671b\u70b9\u3067\u306e\u6570\u5024\u3092\u6bd4\u8f03\u3002- \u8aa4\u308a2\uff1a\u5c11\u6570\u6d3e\u3092\u8907\u88fd\u3057\u3059\u304e\u3066\u904e\u5b66\u7fd2\u3002\u56de\u907f\uff1aSMOTE\u306a\u3069\u306e\u5408\u6210\u7cfb\u3092\u8a66\u3057\u3001\u5883\u754c\u30ce\u30a4\u30ba\u306b\u6ce8\u610f\u3057\u3064\u3064\u691c\u8a3c\u3001\u5fc5\u8981\u306a\u3089\u8efd\u3044\u30a2\u30f3\u30c0\u30fc\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3068\u4f75\u7528\u3002- \u8aa4\u308a3\uff1a\u5c64\u5316\u305b\u305a\u306b\u5206\u5272\u3057\u3066\u3001\u691c\u8a3c\u306b\u5c11\u6570\u6d3e\u304c\u307b\u307c\u5165\u3089\u306a\u3044\u3002\u56de\u907f\uff1a\u5c64\u5316\u5206\u5272\u3092\u5fb9\u5e95\u3002- \u8aa4\u308a4\uff1a\u73fe\u5834\u306e\u30b3\u30b9\u30c8\u69cb\u9020\u3092\u7121\u8996\u3057\u3066\u95be\u5024\u3092\u56fa\u5b9a\u3002\u56de\u907f\uff1aPR\/ROC\u306e\u66f2\u7dda\u306b\u57fa\u3065\u304f\u95be\u5024\u8abf\u6574\u3068\u3001\u30b3\u30b9\u30c8\u611f\u5ea6\u5b66\u7fd2\u306b\u3088\u308b\u91cd\u307f\u4ed8\u3051\u306e\u4f75\u7528\u3002- \u8aa4\u308a5\uff1a\u524d\u51e6\u7406\u3092\u5168\u4f53\u3067\u8a08\u7b97\u3057\u3066\u304b\u3089\u5206\u5272\u3002\u56de\u907f\uff1a\u8a13\u7df4\u2192\u691c\u8a3c\/\u30c6\u30b9\u30c8\u306e\u9806\u3067\u9069\u7528\u3002[14][5][1][13]\n\n\n\n
\u6545\u969c\u4e88\u77e5\u3078\u306e\u5177\u4f53\u5316\u3068\u3057\u3066\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u624b\u9806\u304c\u5b9f\u7528\u7684\u3067\u3042\u308b\u30021) \u30c7\u30fc\u30bf\u628a\u63e1\uff1a\u30af\u30e9\u30b9\u6bd4\uff08\u6b63\u5e38:\u7570\u5e38\uff09\u3092\u78ba\u8a8d\u3057\u3001\u8a55\u4fa1\u6307\u6a19\uff08F1\u3001PR-AUC\u3001\u6240\u671b\u306e\u518d\u73fe\u7387\u30fb\u9069\u5408\u7387\uff09\u3092\u6c7a\u3081\u308b\u30022) \u5206\u5272\u3068\u6f0f\u3048\u3044\u5bfe\u7b56\uff1a\u5c64\u5316\u5206\u5272\u3001\u5fc5\u8981\u306a\u3089\u6642\u7cfb\u5217\/\u30b0\u30eb\u30fc\u30d7\u5206\u5272\u3001\u524d\u51e6\u7406\u306f\u8a13\u7df4\u57fa\u6e96\u30023) \u57fa\u672c\u7b56\uff1aSMOTE\u307e\u305f\u306f\u8efd\u5ea6\u306e\u30a2\u30f3\u30c0\u30fc\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3092\u9069\u7528\u3057\u3001\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\uff08\u91cd\u307f\u306a\u3057\uff09\u3068\u30af\u30e9\u30b9\u91cd\u307f\u3042\u308a\u3092\u6bd4\u8f03\u30024) \u4f75\u7528\u7b56\uff1a\u30aa\u30fc\u30d0\u30fc\uff0b\u30a2\u30f3\u30c0\u30fc\u306e\u30d0\u30e9\u30f3\u30b9\u3001\u5883\u754c\u3092\u610f\u8b58\u3057\u305fSMOTE\u306e\u6d3e\u751f\u3001\u30b3\u30b9\u30c8\u611f\u5ea6\u5b66\u7fd2\u3092\u52a0\u3048\u3066\u30b0\u30ea\u30c3\u30c9\u63a2\u7d22\u30025) \u95be\u5024\u6700\u9069\u5316\uff1aPR\u66f2\u7dda\u4e0a\u3067\u518d\u73fe\u7387\u306e\u4e0b\u9650\uff08\u898b\u9003\u3057\u8a31\u5bb9\uff09\u3092\u6e80\u305f\u3059\u70b9\u304b\u3089\u9069\u5408\u7387\u6700\u5927\u306e\u95be\u5024\u3092\u9078\u3076\u30026) \u904b\u7528\u8a2d\u8a08\uff1a\u8aa4\u8b66\u5831\u306f\u4e8c\u6b21\u5224\u5b9a\uff08\u8ffd\u52a0\u7279\u5fb4\u3084\u4eba\u306e\u70b9\u691c\uff09\u3067\u7d5e\u308a\u3001\u30e2\u30c7\u30eb\u306f\u9ad8\u518d\u73fe\u7387\u5bc4\u308a\u3092\u512a\u5148\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5c11\u6570\u6d3e\uff08\u7570\u5e38\uff09\u306e\u898b\u843d\u3068\u3057\u3092\u6291\u3048\u3064\u3064\u3001\u73fe\u5834\u306e\u70b9\u691c\u30b3\u30b9\u30c8\u306b\u5408\u308f\u305b\u305f\u5b9f\u7528\u7684\u30d0\u30e9\u30f3\u30b9\u306b\u5230\u9054\u3067\u304d\u308b\u3002[5][1][2][13][3]\n\n\n\n
\u6700\u5f8c\u306b\u3001\u610f\u601d\u6c7a\u5b9a\u306e\u6307\u91dd\u3092\u307e\u3068\u3081\u308b\u3002- \u307e\u305a\u6307\u6a19\u3092\u6b63\u3057\u304f\u9078\u3076\uff08F1\u3001PR-AUC\u3001\u5fc5\u8981\u518d\u73fe\u7387\uff09\u3002- \u6b21\u306b\u30c7\u30fc\u30bf\u3092\u6574\u3048\u308b\uff08SMOTE\u7b49\u306e\u518d\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3001\u5c64\u5316\u5206\u5272\uff09\u3002- \u3055\u3089\u306b\u5b66\u7fd2\u3092\u8ce2\u304f\u3059\u308b\uff08\u30af\u30e9\u30b9\u91cd\u307f\u30fb\u30b3\u30b9\u30c8\u611f\u5ea6\u5b66\u7fd2\uff09\u3002- \u6700\u5f8c\u306b\u95be\u5024\u3092\u904b\u7528\u6761\u4ef6\u3067\u6c7a\u3081\u308b\uff08PR\/ROC\u306b\u57fa\u3065\u304f\u6700\u9069\u5316\uff09\u3002\u3053\u306e\u56db\u6bb5\u69cb\u3048\u3092\u5b88\u308c\u3070\u3001\u30af\u30e9\u30b9\u4e0d\u5747\u8861\u306e\u53b3\u3057\u3044\u73fe\u5834\u3067\u3082\u3001\u898b\u843d\u3068\u3057\u3068\u8aa4\u8b66\u5831\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u5236\u5fa1\u3057\u306a\u304c\u3089\u3001\u4fe1\u983c\u3067\u304d\u308b\u4e88\u77e5\u30e2\u30c7\u30eb\u306b\u8fd1\u3065\u3051\u308b\u3002[1][13][14][3]\n\n\n\n[1] https:\/\/www.datasciencecentral.com\/exploring-oversampling-and-under-sampling-core-techniques-for-balancing-imbalanced-datasets-in-ml\/<\/p>\n\n\n\n[2] https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC11240176\/<\/p>\n\n\n\n[3] https:\/\/aicompetence.org\/auc-vs-precision-recall-curve-imbalanced-datasets\/<\/p>\n\n\n\n[4] https:\/\/developers.google.com\/machine-learning\/crash-course\/classification\/accuracy-precision-recall<\/p>\n\n\n\n[5] https:\/\/www.machinelearningmastery.com\/roc-curves-and-precision-recall-curves-for-classification-in-python\/<\/p>\n\n\n\n[6] https:\/\/towardsdatascience.com\/courage-to-learn-ml-a-deeper-dive-into-f1-recall-precision-and-roc-curves-d5c0a46e5eb7\/<\/p>\n\n\n\n[7] https:\/\/www.numberanalytics.com\/blog\/precision-recall-guide-ai<\/p>\n\n\n\n[8] https:\/\/www.kaggle.com\/code\/residentmario\/undersampling-and-oversampling-imbalanced-data<\/p>\n\n\n\n[9] https:\/\/www.blog.trainindata.com\/overcoming-class-imbalance-with-smote\/<\/p>\n\n\n\n[10] https:\/\/towardsdatascience.com\/oversampling-and-undersampling-explained-a-visual-guide-with-mini-2d-dataset-1155577d3091\/<\/p>\n\n\n\n[11] https:\/\/www.geeksforgeeks.org\/ml-handling-imbalanced-data-with-smote-and-near-miss-algorithm-in-python\/<\/p>\n\n\n\n[12] https:\/\/www.nature.com\/articles\/s41598-025-05791-7<\/p>\n\n\n\n[13] https:\/\/www.machinelearningmastery.com\/cost-sensitive-learning-for-imbalanced-classification\/<\/p>\n\n\n\n[14] https:\/\/fraud-detection-handbook.github.io\/fraud-detection-handbook\/Chapter_6_ImbalancedLearning\/CostSensitive.html<\/p>\n\n\n\n[15] https:\/\/www.nb-data.com\/p\/implement-cost-sensitive-learning<\/p>\n\n\n\n[16] https:\/\/www.ismll.uni-hildesheim.de\/pub\/pdfs\/Nguyen_et_al_IJCNN2010_CSL.pdf<\/p>\n\n\n\n[17] https:\/\/heartbeat.comet.ml\/cost-sensitive-learning-for-imbalanced-data-93370404a54b<\/p>\n\n\n\n[18] https:\/\/substack.com\/home\/post\/p-164989680<\/p>\n\n\n\n[19] https:\/\/www.geeksforgeeks.org\/python\/how-to-implement-cost-sensitive-learning-in-decision-trees\/<\/p>\n\n\n\n[20] https:\/\/talent500.com\/blog\/a-comprehensive-guide-to-handling-imbalanced-datasets-in-classification-problems\/<\/p>\n\n\n\n
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