A Span-Based Distantly Supervised NER with Self-learning. - Hongli Mao; Hanlin Tang; Wen Zhang; Heyan Huang; Xian-Ling Mao (NLPCC (1), 2020)

Span Graph Transformer for Document-Level Named Entity Recognition. - Hongli Mao; Xian-Ling Mao; Hanlin Tang; Yuming Shang; Heyan Huang (AAAI, 2024)

Span-based Unified Named Entity Recognition Framework via Contrastive Learning. - Hongli Mao; Xian-Ling Mao; Hanlin Tang; Yu-Ming Shang; Xiaoyan Gao; Ao-Jie Ma; Heyan Huang (IJCAI, 2024)

HCUKE: A Hierarchical Context-aware approach for Unsupervised Keyphrase Extraction. - Chun Xu; Xian-Ling Mao; Cheng-Xin Xin; Yu-Ming Shang; Tian-Yi Che; Hongli Mao; Heyan Huang (Knowl. Based Syst., 2024)

SDRank: A shallow-to-deep ranking framework for enhanced unsupervised keyphrase extraction. - Chun Xu; Xian-Ling Mao; Tian-Yi Che; Hongli Mao; Heyan Huang (Expert Syst. Appl., 2025)

A Flat Tree-based Transformer for Nested Named Entity Recognition. - Hongli Mao; Xian-Ling Mao; Hanlin Tang; Xiaoyan Gao; Chun Xu; Heyan Huang (Knowl. Based Syst., 2025)

From local to global: Leveraging document graph for named entity recognition. - Yu-Ming Shang; Hongli Mao; Tian Tian; Heyan Huang; Xian-Ling Mao (Knowl. Based Syst., 2025)