Accessibility of CAPTCHA methods.
Sajad Shirali-ShahrezaMohammad Hassan Shirali-ShahrezaPublished in: AISec (2011)
Keyphrases
- empirical studies
- qualitative and quantitative
- machine learning methods
- benchmark datasets
- multi class
- medical images
- statistical methods
- missing values
- cross validation
- text classification
- data mining
- computational cost
- computational complexity
- similarity measure
- three dimensional
- case study
- information systems
- search engine