Unsupervised Extractive Summarization by Pre-training Hierarchical Transformers

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Knowledge Triples

Source Entity	Relationship	Target Entity
Linear Combination Method	combinesWith	Recent Unsupervised Model OtherEntity
Linear Combination Method	improves	State of the Art Performance Metric
New York Times Material	evaluatedIn	State of the Art Performance Metric
Unsupervised Extractive Summarization Task	uses	Hierarchical Transformer Model Method