Keyphrases
- natural language
- natural language processing
- speech understanding
- data mining
- natural language parsing
- context free grammars
- databases
- penn treebank
- shallow parsing
- intermediate representation
- graph grammars
- dependency parsing
- pattern matching
- unsupervised learning
- pos tagging
- information extraction
- expert systems
- feature selection
- real time
- syntactic and semantic dependencies