Filling Knowledge Base Gaps for Distant Supervision of Relation Extraction.
Wei XuRaphael HoffmannLe ZhaoRalph GrishmanPublished in: ACL (2) (2013)
Keyphrases
- relation extraction
- knowledge base
- automatic extraction
- information extraction
- semantic relations
- wordnet
- domain specific
- named entities
- semantic features
- question answering
- semantic role labeling
- dependency tree
- dependency trees
- reference resolution
- named entity recognition
- knowledge based systems
- broad coverage
- expert systems
- knowledge acquisition
- co occurrence
- tree kernels
- knowledge representation
- knowledge sources
- parse tree
- general purpose
- background knowledge
- natural language processing
- active learning