@inproceedings{li-etal-2021-unsupervised-cross, title = "Unsupervised Cross-Domain Prerequisite Chain Learning using Variational Graph Autoencoders", author = "Li, Irene and Yan, Vanessa and Li, Tianxiao and Qu, Rihao and Radev, Dragomir", editor = "Zong, Chengqing and Xia, Fei and Li, Wenjie and Navigli, Roberto", booktitle = "Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)", month = aug, year = "2021", address = "Online", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/2021.acl-short.127/", doi = "10.18653/v1/2021.acl-short.127", pages = "1005--1011" }