Pengfei Li

2026

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QChunker: Learning Question-Aware Text Chunking for Domain RAG via Multi-Agent Debate.
Jihao Zhao|Daixuan Li|Pengfei Li|Shuaishuai Zu|Biao Qin|Hongyan Liu
Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

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Decoupling Feature Entanglement for Personalized Federated Learning via Neural Collapse.
Haizhou Du|Pengfei Li
Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

2016

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On the Effectiveness of Query Weighting for Adapting Rank Learners to New Unlabelled Collections.
Pengfei Li|Mark Sanderson|Mark James Carman|Falk Scholer
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

2015

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Transfer Learning for Information Retrieval.
Pengfei Li
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015