Keyphrases
- language model
- commonsense reasoning
- language modeling
- nonmonotonic reasoning
- document retrieval
- n gram
- logic programming
- event calculus
- probabilistic model
- knowledge representation
- query expansion
- retrieval model
- incomplete information
- test collection
- information retrieval
- language modelling
- language models for information retrieval
- formal theory
- statistical language models
- document ranking
- relevance model
- autoepistemic logic
- smoothing methods
- data mining
- missing information
- automated reasoning
- expert systems