Revisiting clustering as matrix factorisation on the Stiefel manifold.
Stéphane ChrétienBenjamin GuedjPublished in: CoRR (2019)
Keyphrases
- matrix factorisation
- euclidean space
- em algorithm
- unsupervised learning
- clustering algorithm
- pairwise
- information extraction
- high dimensional
- hierarchical clustering
- clustering method
- self organizing maps
- nonnegative matrix factorization
- categorical data
- metric space
- k means
- image processing
- expectation maximization
- low dimensional
- signal processing
- euclidean distance
- outlier detection
- cluster analysis
- maximum likelihood
- data points