Dense vs. Sparse Representations for News Stream Clustering.
Todor StaykovskiAlberto Barrón-CedeñoGiovanni Da San MartinoPreslav NakovPublished in: Text2Story@ECIR (2019)
Keyphrases
- sparse representation
- stream clustering
- sparse reconstruction
- dictionary learning
- evolving data streams
- sparse coding
- image classification
- face recognition
- high dimensional data
- data streams
- concept drift
- image representation
- compressive sensing
- regularized least squares
- outlier detection
- data clustering
- signal processing
- joint optimization
- clustering algorithm
- dimensionality reduction
- stream mining
- pattern recognition