计算机科学 ›› 2021, Vol. 48 ›› Issue (1): 273-279.doi: 10.11896/jsjkx.191100020
张艳梅, 楼胤成
ZHANG Yan-mei, LOU Yin-cheng
摘要： 区块链技术的发展吸引了全球投资者的目光。目前,有数以万计的智能合约部署在以太坊上。在给金融、溯源等诸多行业带来颠覆性的创新之余,以太坊上的部分智能合约含有诸如庞氏骗局等欺诈形式,给全球投资者造成了数百万美元的损失。但是,目前针对互联网金融背景下庞氏骗局的定量识别方法较少,针对以太坊上庞氏骗局合约检测的研究较少,且检测精度有进一步提高的空间,文中提出基于深度神经网络的庞氏骗局合约检测方法。该方法提取出智能合约中有助于识别庞氏骗局的特征,如智能合约的操作码特征和账户特征,形成数据集,而后在数据集上训练模型,在测试集上检测性能。实验结果表明,基于深度神经网络的庞氏骗局合约检测方法具有99.6%的查准率和96.3%的查全率,均优于现有方法。
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