Sparse Count Data Clustering Using an Exponential Approximation to Generalized Dirichlet Multinomial Distributions.
Nuha ZamzamiNizar BouguilaPublished in: IEEE Trans. Neural Networks Learn. Syst. (2022)
Keyphrases
- dirichlet distribution
- data clustering
- mixture model
- discrete data
- unsupervised learning
- prior distribution
- spectral clustering
- expectation maximization
- power law
- k means
- high dimensional
- cluster analysis
- clustering algorithm
- exploratory data analysis
- bayesian classifiers
- deterministic annealing
- sparse representation
- unsupervised feature selection
- generative model
- model selection
- clustering ensemble
- em algorithm
- density estimation
- data warehouse
- similarity measure
- face recognition