Keyphrases
- question answering
- sparse representation
- sparse coding
- dictionary learning
- sparse reconstruction
- question classification
- information retrieval
- natural language processing
- natural language
- high dimensional data
- information extraction
- qa clef
- natural language questions
- image classification
- named entities
- dimensionality reduction
- cross language
- syntactic information
- question answering systems
- face recognition
- passage retrieval
- relation extraction
- answer validation
- semantic roles
- image representation
- answering questions
- text mining
- high dimensional