Introducing Problem Schema with Hierarchical Exercise Graph for Knowledge Tracing.

@inproceedings{tong-2022-introducing, author = {Hanshuang Tong and Zhen Wang and Yun Zhou and Shiwei Tong and Wenyuan Han and Qi Liu}, editor = {Enrique Amig\'{o} and Pablo Castells and Julio Gonzalo and Ben Carterette and J. Shane Culpepper and Gabriella Kazai}, title = {{Introducing Problem Schema with Hierarchical Exercise Graph for Knowledge Tracing}}, booktitle = {{SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022}}, pages = {405--415}, publisher = {ACM}, year = {2022}, url = {https://doi.org/10.1145/3477495.3532004}, doi = {https://doi.org/10.1145/3477495.3532004} }