When are Overcomplete Topic Models Identifiable? Uniqueness of Tensor Tucker Decompositions with Structured Sparsity.
Animashree AnandkumarDaniel J. HsuMajid JanzaminSham M. KakadePublished in: CoRR (2013)
Keyphrases
- topic models
- structured sparsity
- high order
- latent dirichlet allocation
- statistical learning
- sparse representation
- linear combination
- natural images
- latent variables
- text documents
- text mining
- higher order
- co occurrence
- generative model
- learning problems
- probabilistic model
- dimensionality reduction
- sparse coding
- singular value decomposition
- multiscale
- data mining
- image classification
- pairwise
- training data
- image processing
- learning algorithm