WordNet18
Introduced in Translating Embeddings for Modeling Multi-relational Data2012
The WN18 dataset has 18 relations scraped from WordNet for roughly 41,000 synsets, resulting in 141,442 triplets. It was found out that a large number of the test triplets can be found in the training set with another relation or the inverse relation. Therefore, a new version of the dataset WN18RR has been proposed to address this issue.
Source: http://nlpprogress.com/english/relation_prediction.html
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