「カード不正利用」の検知精度、深層学習で劇的向上 – 日本経済新聞
日本経済新聞 |
「カード不正利用」の検知精度、深層学習で劇的向上
日本経済新聞 三井住友フィナンシャルグループ（三井住友FG）は、ディープラーニング（深層学習）を使ってクレジットカードの不正検知の精度を上げる検証を行った。不正利用の疑いがあると判定した取引のうち、本当に不正な取引だった比率を従来の5％程度から90％程度へと大幅に … |
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