Topic Discovery through Data Dependent and Random Projections
Weicong DingMohammad H. RohbanPrakash IshwarVenkatesh SaligramaPublished in: CoRR (2013)
Keyphrases
- data dependent
- random projections
- topic discovery
- hash functions
- text analysis
- text classification
- topic models
- dimensionality reduction
- latent dirichlet allocation
- sparse representation
- dimension reduction
- image reconstruction
- original data
- similarity search
- random sampling
- principal component analysis
- low dimensional
- pairwise
- computer vision
- document clustering
- text mining
- data sets
- co occurrence
- natural language processing
- prior knowledge
- multiscale
- feature extraction
- neural network