Effectively classifying short texts by structured sparse representation with dictionary filtering.
Longwen GaoShuigeng ZhouJihong GuanPublished in: Inf. Sci. (2015)
Keyphrases
- sparse representation
- short texts
- short text
- dictionary learning
- sparse coding
- image classification
- compressed sensing
- joint optimization
- face recognition
- signal processing
- compressive sensing
- image patches
- sparse approximations
- image representation
- high dimensional data
- topic detection
- dimensionality reduction
- sparse coefficients
- information retrieval
- low rank matrix recovery
- probabilistic model
- feature space
- pattern recognition
- image segmentation
- computer vision