Keyphrases
- natural language
- syntactic structures
- semantic constraints
- syntactic semantic
- semantic parser
- semantic parsing
- word alignment
- parse tree
- semantic representation
- space complexity
- multi document summarization
- semantic network
- decision problems
- domain specific
- syntactic analysis
- natural language processing
- computational cost
- natural language sentences
- syntactic categories
- computational complexity
- highly ambiguous
- machine learning