Lyu, Kailun, Zehan Li, Fu Zhang, and Jingwei Cheng. 2026. “A Boundary Token Graph for Zero-Shot Relation Triplet Extraction Involving Discontinuous Entities”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (38):32401-9. https://doi.org/10.1609/aaai.v40i38.40515.