Keyphrases
- semantic role labeling
- semi supervised
- named entity recognition
- dependency parsing
- semi supervised learning
- labeled data
- syntactic parsing
- relation extraction
- predicate argument
- semantic roles
- unlabeled data
- supervised learning
- pairwise
- generative model
- word sense disambiguation
- active learning
- unsupervised learning
- general purpose
- prepositional phrase
- tree kernels
- named entities
- automatic extraction
- semantic relations
- artificial intelligence
- domain knowledge
- knowledge base