Lyu K, Li Z, Zhang F, Cheng J. A Boundary Token Graph for Zero-Shot Relation Triplet Extraction Involving Discontinuous Entities. AAAI [Internet]. 2026 Mar. 14 [cited 2026 May 26];40(38):32401-9. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/40515