News topics categorization using latent Dirichlet allocation and sparse representation classifier.
Yuan-Shan LeeRocky LoChia-Yen ChenPo-Chuan LinJia-Ching WangPublished in: ICCE-TW (2015)
Keyphrases
- sparse representation
- latent dirichlet allocation
- topic models
- dimensionality reduction
- topic modeling
- lda model
- generative model
- face recognition
- topic discovery
- feature space
- image classification
- feature selection
- probabilistic latent semantic analysis
- negative matrix factorization
- image representation
- support vector
- signal processing
- training data
- support vector machine
- high dimensional data
- gibbs sampling
- text categorization
- text mining
- training set
- data sets
- text classification
- image processing
- probabilistic model
- latent variables
- feature extraction