no code implementations • CoNLL (EMNLP) 2021 • Junxing Wang, Xinyi Li, Zhen Tan, Xiang Zhao, Weidong Xiao
A bidirectional attention mechanism is applied between the question sequence and the paths that connect entities, which provides us with transparent interpretability.
no code implementations • Findings (ACL) 2022 • Peixin Huang, Xiang Zhao, Minghao Hu, Yang Fang, Xinyi Li, Weidong Xiao
Secondly, we propose a hybrid selection strategy in the extractor, which not only makes full use of span boundary but also improves the ability of long entity recognition.
no code implementations • COLING 2020 • Peixin Huang, Xiang Zhao, Ryuichi Takanobu, Zhen Tan, Weidong Xiao
Most existing work on event extraction (EE) either follows a pipelined manner or uses a joint structure but is pipelined in essence.
no code implementations • 7 Jul 2020 • Yang Fang, Xiang Zhao, Yifan Chen, Weidong Xiao, Maarten de Rijke
We propose a self-supervised pre-training and fine-tuning framework, PF-HIN, to capture the features of a heterogeneous information network.
no code implementations • AAAI-2019 2019 • Zhen Tan, Xiang Zhao, Wei Wang, Weidong Xiao
Triplets extraction is an essential and pivotal step in automatic knowledge base construction, which captures structural information from unstructured text corpus.