Keyphrases
- natural language processing
- information extraction
- machine learning
- named entity recognition
- natural language
- expressive power
- text mining
- modal logic
- computational linguistics
- knowledge representation
- wordnet
- free text
- text processing
- language processing
- text summarization
- question answering
- word sense disambiguation
- semantic relations
- semantic analysis
- computational biology
- machine translation
- ontology learning
- proof theory
- feature engineering
- propositional calculus
- neural network
- inference rules
- named entities
- classical logic
- nonmonotonic logics