Open Hierarchical Relation Extraction.
Kai ZhangYuan YaoRuobing XieXu HanZhiyuan LiuFen LinLeyu LinMaosong SunPublished in: NAACL-HLT (2021)
Keyphrases
- relation extraction
- automatic extraction
- information extraction
- named entities
- domain specific
- semantic relations
- semantic role labeling
- question answering
- semantic features
- broad coverage
- dependency tree
- dependency trees
- reference resolution
- named entity recognition
- parse tree
- tree kernels
- co occurrence
- general purpose
- image retrieval
- clustering algorithm
- wordnet
- low level