题目 Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a number chosen from [1,104 ]. The first one who bets on a unique number wins. For example, if there ar…
人人都恨验证码——那些恼人的图片,显示着你在登陆某网站前得输入的文本.设计验证码的目的是,通过验证你是真实的人来避免电脑自动填充表格.但是随着深度学习和计算机视觉的兴起,现在验证码常常易被攻破. 我拜读了 Adrian Rosebrock 写的<Deep Learning for Computer Vision with Python>.在书中,Adrian 描述了他是怎样用机器学习绕过纽约 E-ZPass 网站上的验证码: Adrian 无法接触到该应用生成验证码的源代码.为了攻破该系统,他…
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