Joint entity recognition and relation extraction as a multi-head selection problem.
Giannis BekoulisJohannes DeleuThomas DemeesterChris DevelderPublished in: Expert Syst. Appl. (2018)
Keyphrases
- relation extraction
- automatic extraction
- information extraction
- named entities
- domain specific
- question answering
- semantic relations
- semantic role labeling
- semantic features
- broad coverage
- reference resolution
- dependency tree
- tree kernels
- named entity recognition
- dependency trees
- knowledge base
- information retrieval
- named entity recognizer
- higher order
- hidden markov models
- high level
- feature selection