LaPraDoR: Unsupervised Pretrained Dense Retriever for Zero-Shot Text Retrieval

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Knowledge Triples

Source Entity	Relationship	Target Entity
BEIR Benchmark Material	includes	Zero Shot Text Retrieval Tasks Task
LaPraDoR OtherEntity	achieves	State of the Art Performance Metric
LaPraDoR OtherEntity	achieves	Superior Performance Metric
LaPraDoR OtherEntity	evaluatedIn	BEIR Benchmark Material
LaPraDoR OtherEntity	uses	Iterative Contrastive Learning Method
LaPraDoR OtherEntity	uses	Lexicon Enhanced Dense Retrieval Method