A deep learning-based attack on text CAPTCHAs by using object detection techniques.
Jiawei NianPing WangHaichang GaoXiaoyan GuoPublished in: IET Inf. Secur. (2022)
Keyphrases
- deep learning
- object detection
- unsupervised learning
- unsupervised feature learning
- machine learning
- object class
- information retrieval
- deep architectures
- mental models
- multi class
- weakly supervised
- computer vision
- text mining
- natural images
- dimensionality reduction
- domain specific
- semi supervised
- learning strategies
- semantic information
- object categories
- pairwise
- decision trees
- feature selection