MoPo regularizes multi-hop dense retrieval with per-hop query-focused gold summaries and a momentum-averaged teacher, improving retrieval and QA on HotpotQA and StrategyQA.
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Momentum Posterior Regularization for Multi-hop Dense Retrieval
MoPo regularizes multi-hop dense retrieval with per-hop query-focused gold summaries and a momentum-averaged teacher, improving retrieval and QA on HotpotQA and StrategyQA.