1. Kevin Bock Daven Patel George Hughey and Dave Levin . 2017. unCaptcha: a low-resource defeat of reCaptcha's audio challenge Proceedings of the 11th USENIX Workshop on Offensive Technologies. Kevin Bock Daven Patel George Hughey and Dave Levin . 2017. unCaptcha: a low-resource defeat of reCaptcha's audio challenge Proceedings of the 11th USENIX Workshop on Offensive Technologies.
2. Nicholas Carlini and David Wagner . 2018. Audio adversarial examples: Targeted attacks on speech-to-text. arXiv preprint arXiv:1801.01944 (January . 2018). Nicholas Carlini and David Wagner . 2018. Audio adversarial examples: Targeted attacks on speech-to-text. arXiv preprint arXiv:1801.01944 (January . 2018).
3. Google . 2018 (accessed March 1 2018). Google reCAPTCHA: Tough on bots Easy on humans. https://www.google.com/recaptcha/intro/android.html Google . 2018 (accessed March 1 2018). Google reCAPTCHA: Tough on bots Easy on humans. https://www.google.com/recaptcha/intro/android.html
4. Awni Hannun Carl Case Jared Casper Bryan Catanzaro Greg Diamos Erich Elsen Ryan Prenger Sanjeev Satheesh Shubho Sengupta Adam Coates and Andrew Y. Ng. . 2014. Deep Speech: Scaling up end-to-end speech recognition. arXiv preprint arXiv:1412.5567 (December . 2014). Awni Hannun Carl Case Jared Casper Bryan Catanzaro Greg Diamos Erich Elsen Ryan Prenger Sanjeev Satheesh Shubho Sengupta Adam Coates and Andrew Y. Ng. . 2014. Deep Speech: Scaling up end-to-end speech recognition. arXiv preprint arXiv:1412.5567 (December . 2014).
5. Martin Kopp Matvej Nikl and Martin Holevn . 2017. Breaking CAPTCHAs with convolutional neural networks Proceedings of the 17th Conference on Information Technologies - Applications and Theory. Martin Kopp Matvej Nikl and Martin Holevn . 2017. Breaking CAPTCHAs with convolutional neural networks Proceedings of the 17th Conference on Information Technologies - Applications and Theory.