Breaking Text-Based CAPTCHA with Sparse Convolutional Neural Networks.

Diogo Daniel Ferreira Luís Leira Petya Mihaylova Petia Georgieva

Published in: IbPRIA (2) (2019)

Keyphrases

convolutional neural networks
convolutional network
sparse data
high dimensional
sparse representation
sparse matrix
real time
case study
sparse coding
information retrieval
search engine
multimedia
image search
user authentication
elastic net