Keyphrases
- semi supervised learning
- countermeasures
- malicious attacks
- traffic analysis
- security threats
- security mechanisms
- parameter estimation
- attack detection
- java card
- watermarking scheme
- graph based semi supervised learning
- malicious users
- least squares
- information systems
- chosen plaintext
- opinion detection
- detect malicious
- data mining
- computer security
- watermarking algorithm
- spatial domain
- lightweight
- access control
- expectation maximization
- training set
- cooperative
- machine learning