谷歌为Gmail部署新矢量算法,可大幅提高垃圾钓鱼邮件识别率
· 2023-12-04

谷歌悄然为Gmail新增了一个垃圾邮件过滤器,号称在识别垃圾邮件、网络钓鱼邮件方面拥有更好表现。

IT之家 12月3日消息,据外媒PC mag报道,谷歌悄然为Gmail新增了一个垃圾邮件过滤器,号称在识别垃圾邮件、网络钓鱼邮件方面拥有更好表现。


据介绍,这个新的垃圾邮件过滤器是基于Google Colab上的新型开源多语言文本矢量化器RETVec(弹性高效文本矢量器)。它可以将单词映射成矢量或者数字,从而被用来提升垃圾邮件和钓鱼邮件的识别率,同时降低误报率。


由于网络犯罪分子仍然持续创建绕过防御系统的内容,导致当前文本分类模型在识别诈骗网络钓鱼攻击方面仍存在困难。谷歌方面声称,RETVec在经过训练之后,能够检测并理解“字符级”的操作,包括插入、删除、拼写错误、同音字,同时还能降低计算成本。


根据谷歌自己的统计,将RETVec应用到Gmail后,垃圾邮件检测率相比以往的过滤器提高38%、误报率降低19.4%、张量处理单元(TPU)使用率降低了83.13%。



谷歌方面声称,使用RETVec训练的模型表现出更快的推理速度,较小的模型可以降低计算成本并减少延迟,这对于大规模系统和设备上的模型至关重要。


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