Open information extraction (Open IE) extracts relation phrases and arguments from text. Open IE does not rely on specific relation types and can handle many kinds of relational facts


Open IE for handling open relations


Relation discovery discovers unseen relation types from unsupervised data. Generative models can be used to treat these relations as latent variables, or relation discovery can be viewed as a clustering task.


Relation discovery for handling open relations


- Open IE for handling open relations
- Relation discovery for handling open relations


Columbia University

Most RE systems work within pre-specific relation sets designed by human experts. Since the world undergoes open-ended growth of relations, it is not possible to handle all the emerging relation types only by humans. RE system need to be able not to rely on predefined relation schemas and have the ability to work in open scenarios. 


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