Sparsifying Sparse Representations for Passage Retrieval by Top-k Masking.
Jheng-Hong YangXueguang MaJimmy LinPublished in: CoRR (2021)
Keyphrases
- sparse representation
- passage retrieval
- compressed sensing
- question answering
- document retrieval
- dictionary learning
- language model
- information retrieval
- audio visual
- image classification
- face recognition
- query processing
- query expansion
- random projections
- retrieval model
- human visual system
- signal processing
- quantitative evaluation
- semantic relatedness
- retrieval systems
- image representation
- relevance model
- high dimensional data
- pseudo relevance feedback
- multi modal
- dimensionality reduction
- data sets
- natural language processing
- document collections
- image content
- co occurrence
- image features
- information extraction
- natural language
- computer vision
- machine learning