A Survey on Breaking Technique of Text-Based CAPTCHA.

Jun Chen Xiangyang Luo Yanqing Guo Yi Zhang Daofu Gong

Published in: Secur. Commun. Networks (2017)

Keyphrases

e learning
multimedia
learning environment
user authentication
visual features
image search
genetic algorithm
information systems
high quality
data sets
information retrieval
website
case study
multi agent
pairwise
peer to peer