Temporal and spatial anomaly detection using Phase Spectrum of Quaternion Fourier Transform.
Huan WangHuiwen GuoXinyu WuJinke LiPublished in: ICIA (2015)
Keyphrases
- fourier transform
- anomaly detection
- fourier domain
- frequency spectrum
- phase difference
- frequency domain
- intrusion detection
- signal processing
- detecting anomalies
- network intrusion detection
- network traffic
- correlation function
- anomalous behavior
- discrete fourier transform
- radon transform
- intrusion detection system
- power spectrum
- one class support vector machines
- detect anomalies
- network anomaly detection
- negative selection algorithm
- image processing
- cumulative sum
- fourier coefficients
- unsupervised learning
- pairwise
- decision trees