SpaDE: Improving Sparse Representations using a Dual Document Encoder for First-stage Retrieval.
Eunseong ChoiSunkyung LeeMinjin ChoiHyeseon KoYoung-In SongJongwuk LeePublished in: CoRR (2022)
Keyphrases
- sparse representation
- retrieval systems
- dictionary learning
- information retrieval
- document retrieval
- information retrieval systems
- sparse coding
- structured documents
- image classification
- multimedia documents
- compressive sensing
- test collection
- joint optimization
- random projections
- image representation
- signal processing
- query expansion
- relevant documents
- regularized least squares
- dimensionality reduction
- document collections
- compressed sensing
- negative matrix factorization
- manifold learning
- image patches
- document images
- face recognition
- sparse reconstruction
- rate distortion
- retrieval model
- data sets
- bit rate
- relevance feedback
- image retrieval
- document clustering
- language model
- similarity measure
- decision trees
- neural network