Acoustic event detection based on non-negative matrix factorization with mixtures of local dictionaries and activation aggregation.
Tatsuya KomatsuYuzo SendaReishi KondoPublished in: ICASSP (2016)
Keyphrases
- event detection
- negative matrix factorization
- sparse representation
- blind source separation
- matrix factorization
- nonnegative matrix factorization
- video event detection
- document clustering
- face recognition
- event recognition
- activity recognition
- signal processing
- dimensionality reduction
- image classification
- principal component analysis
- high dimensional data
- spectral clustering
- image representation
- multiscale
- feature selection
- search engine
- unsupervised learning
- training data
- multimedia
- computer vision