Keyphrases
- context aware
- question answering
- context awareness
- contextual information
- ubiquitous computing
- natural language
- natural language processing
- information extraction
- information retrieval
- question classification
- mobile devices
- context aware systems
- visual features
- ambient intelligence
- qa clef
- knowledge representation
- smart environments
- answer validation
- natural language questions
- answer extraction
- machine learning
- question answering systems
- semantic roles
- expert systems
- passage retrieval
- user context
- high level
- cross language
- mobile users
- language model
- syntactic information
- qa systems
- context aware services
- context sensitive