Keyphrases
- language processing
- tree structures
- convolutional neural networks
- tree structure
- natural language processing
- human language technology
- natural language
- convolutional network
- machine translation
- b tree
- r tree
- knowledge representation
- information retrieval
- index structure
- xml documents
- grammar induction
- databases
- rooted trees
- data structure
- tree patterns
- structural features
- data model
- artificial intelligence
- multi dimensional
- information extraction