Algorithm for Secured Online Authentication Using CAPTCHA.
Anjali Avinash ChandavaleAshok M. SapkalPublished in: ICETET (2010)
Keyphrases
- neural network
- experimental evaluation
- dynamic programming
- times faster
- optimization algorithm
- computational complexity
- preprocessing
- detection algorithm
- passive aggressive
- np hard
- cost function
- matching algorithm
- optimal solution
- learning algorithm
- computational cost
- segmentation algorithm
- expectation maximization
- worst case
- k means
- search space
- simulated annealing
- high accuracy
- probabilistic model
- multi objective
- tree structure
- genetic algorithm