A Novel Covariance Matrix Based Approach for Detecting Network Anomalies.
Mahbod TavallaeeWei LuShah Arif IqbalAli A. GhorbaniPublished in: CNSR (2008)
Keyphrases
- covariance matrix
- covariance matrices
- detect anomalies
- sample size
- correlation matrix
- anomaly detection
- principal component analysis
- mahalanobis distance
- maximum likelihood
- eigenvalues and eigenvectors
- geometrical interpretation
- gaussian mixture
- principal components
- evolutionary algorithm
- eigendecomposition
- image processing
- cma es
- multivariate gaussian
- multivariate normal
- transformation matrix
- complex networks
- least squares
- data points
- np hard
- search algorithm