Li S, Li X, Shang L, Jiang X, Liu Q, Sun C, Ji Z, Liu B. HopRetriever: Retrieve Hops over Wikipedia to Answer Complex Questions. AAAI [Internet]. 2021May18 [cited 2024Apr.25];35(15):13279-87. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/17568