随着电商平台的快速发展，交易数据的规模和复杂度不断提高。为了有效防范交易诈骗和恶意活动，需要对买家进行深入分析，建立准确的用户画像，并开发能够识别异常交易行为的算法。 买家画像构建可以利用用户的行为数据等信息，挖掘用户的兴趣爱好、消�

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