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Capture the Bot: Using Adversarial Examples to Improve CAPTCHA Robustness to Bot Attacks.

Dorjan HitajBriland HitajSushil JajodiaLuigi V. Mancini
Published in: IEEE Intell. Syst. (2021)
Keyphrases
  • semi fragile watermarking
  • digital image watermarking
  • machine learning
  • social networks
  • database systems
  • watermarking scheme
  • key concepts
  • watermarking algorithm
  • geometric attacks