Decomposing time series data by a non-negative matrix factorization algorithm with temporally constrained coefficients.
Vincent C. K. CheungKarthik DevarajanGiacomo SeveriniAndrea TurollaPaolo BonatoPublished in: EMBC (2015)
Keyphrases
- singular values
- tensor factorization
- spatio temporal
- wavelet coefficients
- positive and negative
- linear combination
- symmetric matrix
- least squares
- binary matrix
- temporal information
- singular value decomposition
- neural network
- marginal distributions
- linear algebra
- reconstruction error
- anomaly detection
- high dimensional
- similarity matrix
- lagrange multipliers
- wavelet packet
- constrained problems