Document Specific Sparse Coding for Word Retrieval.
Ravi ShekharC. V. JawaharPublished in: ICDAR (2013)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- information retrieval
- natural images
- retrieval systems
- image classification
- information retrieval systems
- linear combination
- unsupervised learning
- generative model
- keywords
- test collection
- object category recognition
- visual words
- retrieval model
- image representation
- co occurrence
- web documents
- image patches
- object recognition
- n gram
- query terms
- feature space
- data sets
- query expansion
- signal processing
- natural language processing
- relevant documents
- high dimensional
- training data
- sparse codes