SAD: web session anomaly detection based on parameter estimation.
Sanghyun ChoSung Deok ChaPublished in: Comput. Secur. (2004)
Keyphrases
- anomaly detection
- parameter estimation
- maximum likelihood
- intrusion detection
- least squares
- em algorithm
- detecting anomalies
- model selection
- anomalous behavior
- network traffic
- network intrusion detection
- markov random field
- intrusion detection system
- parameter estimation algorithm
- one class support vector machines
- expectation maximization
- posterior distribution
- network anomaly detection
- detect anomalies
- parameter estimates
- detecting anomalous
- approximate inference
- estimation problems
- unsupervised learning
- negative selection algorithm
- probabilistic model