System Level User Behavior Biometrics using Fisher Features and Gaussian Mixture Models.
Yingbo SongMalek Ben SalemShlomo HershkopSalvatore J. StolfoPublished in: IEEE Symposium on Security and Privacy Workshops (2013)
Keyphrases
- user behavior
- gaussian mixture model
- feature vectors
- mixture model
- user interaction
- behavioral patterns
- low level
- web usage mining
- speaker recognition
- maximum likelihood
- individual user
- user preferences
- em algorithm
- feature set
- pattern recognition
- feature extraction
- user actions
- generative model
- principal component analysis
- information retrieval
- mel frequency cepstral coefficients
- unsupervised learning
- image processing
- feature selection
- search engine