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COCO-DR: Combating Distribution Shifts in Zero-Shot Dense Retrieval with Contrastive and Distributionally Robust Learning. (arXiv:2210.15212v2 [cs.CL] UPDATED)
COCO-DR: Combating Distribution Shifts in Zero-Shot Dense Retrieval with Contrastive and Distributionally Robust Learning. (arXiv:2210.15212v2 [cs.CL] UPDATED)