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Capture the Bot: Using Adversarial Examples to Improve CAPTCHA Robustness to Bot Attacks.
Dorjan Hitaj
Briland Hitaj
Sushil Jajodia
Luigi V. Mancini
Published in:
IEEE Intell. Syst. (2021)
Keyphrases
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semi fragile watermarking
digital image watermarking
machine learning
social networks
database systems
watermarking scheme
key concepts
watermarking algorithm
geometric attacks