Keyphrases
- passage retrieval
- question answering
- document retrieval
- hidden markov models
- language model
- audio visual
- retrieval model
- query expansion
- information retrieval
- retrieval systems
- speech recognition
- information extraction
- quantitative evaluation
- relevance model
- multi modal
- natural language processing
- semantic relatedness
- bayesian networks
- low level
- text retrieval
- domain knowledge
- artificial intelligence