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Vulnerability of the conventional accessible CAPTCHA used by the White House and an alternative approach for visually impaired people.
Michitomo Yamaguchi
Toru Nakata
Hajime Watanabe
Takeshi Okamoto
Hiroaki Kikuchi
Published in:
SMC (2014)
Keyphrases
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feature space
relational databases
data mining
artificial intelligence
database
databases
machine learning
computer vision
database systems
artificial neural networks
risk assessment
easily accessible