Extractive Text Summarization with Latent Topics using Heterogeneous Graph Neural Network Tuan Anh Phan author Ngoc Dung Nguyen author Khac-Hoai Nam Bui author 2022-10 text Proceedings of the 36th Pacific Asia Conference on Language, Information and Computation Shirley Dita editor Arlene Trillanes editor Rochelle Irene Lucas editor Association for Computational Linguistics Manila, Philippines conference publication phan-etal-2022-extractive https://aclanthology.org/2022.paclic-1.82/ 2022-10 749 756