无监督re-ranker,Improving Passage Retrieval with Zero-Shot Question Generation
ImprovingPassageRetrievalwithZero-ShotQuestionGeneration作者:DevendraSinghSachan1,2∗,MikeLewis3,MandarJoshi4,ArmenAghajanyan3,Wen-tauYih3,JoellePineau1,2,3,LukeZettlemoyer3,41McGillUniversity