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On the viability of CAPTCHAs for use in telephony systems: a usability field study.
Niharika Sachdeva
Nitesh Saxena
Ponnurangam Kumaraguru
Published in:
APCHI (2013)
Keyphrases
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technological advances
computer vision
machine learning
genetic algorithm
artificial neural networks
empirical studies
retrieval systems
database
information systems
future development
usability studies