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*1:Xinnian Liang, et al. 2021. Unsupervised Keyphrase Extraction by Jointly Modeling Local and Global Context. In Proc. of the EMNLP. https://aclanthology.org/2021.emnlp-main.14/
*2:Chin-Yew Lin, Eduard Hovy. 1997. Identifying topics by position. In Proc. of the fifth conference on Applied natural language processing. https://dl.acm.org/doi/10.3115/974557.974599