Open Relation Extraction with Non-existent and Multi-span Relationships.
Huifan YangDa-Wei LiZekun LiDonglin YangBin WuPublished in: KR (2022)
Keyphrases
- relation extraction
- information extraction
- automatic extraction
- domain specific
- named entities
- semantic relations
- question answering
- dependency trees
- dependency tree
- semantic features
- semantic role labeling
- named entity recognition
- tree kernels
- reference resolution
- broad coverage
- artificial intelligence
- named entity recognizer
- unsupervised learning
- graphical models
- knowledge representation
- domain knowledge