Conference papers

ALECE: An Attention-based Learned Cardinality Estimator for SPJ Queries on Dynamic Workloads
Pengfei Li, Wenqing Wei, Rong Zhu, Bolin Ding, Jingren Zhou and Hua Lu
Proceedings of the VLDB Endowment (VLDB), August 2024 [paper]

DILI: A Distribution-Driven Learned Index
Pengfei Li, Hua Lu, Rong Zhu, Bolin Ding, Long Yang and Gang Pan
Proceedings of the VLDB Endowment (VLDB), August 2023 [paper]

LISA: A Learned Index Structure for Spatial Data
Pengfei Li, Hua Lu, Qian Zheng, Long Yang, Gang Pan
ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD), June 2020 [paper]

Exploiting Ratings, Reviews and Relationships for Item Recommendations in Topic Based Social Network
Pengfei Li, Hua Lu, Qian Zheng, Long Yang, Gang Pan
International World Wide Web Conferences (WWW), May 2019 [paper]

Constrained Update Projection Approach to Safe Policy Optimization.
Long Yang, Jiaming Ji, Juntao Dai, Linrui Zhang, Binbin Zhou, Pengfei Li, Yaodong Yang, Gang Pan
Conference on Neural Information Processing Systems (NeurIPS), Nov 2022 [paper]

Policy Optimization with Stochastic Mirror Descent.
Long Yang, Yu Zhang, Gang Zheng, Qian Zheng, Pengfei Li, Jianhang Huang, Gang Pan
AAAI Conference on Artificial Intelligence (AAAI), Feb 2022 [paper]

On Convergence of Gradient Expected Sarsa(λ).
Long Yang, Gang Zheng, Yu Zhang, Qian Zheng, Pengfei Li, Gang Pan
AAAI Conference on Artificial Intelligence (AAAI), Feb 2021 [paper]

Finding Influential Local Users with Similar Interest from Geo-Tagged Social Media Data
Jinling Jiang, Hua Lu, Pengfei Li, Gang Pan, Xike Xie
IEEE International Conference on Mobile Data Management (MDM) , June 2017 [paper]

Journal/Magazine papers

HisRect: Features from Historical Visits and Recent Tweet for Co-Location Judgement
Pengfei Li, Hua Lu, Qian Zheng, Gang Pan
IEEE Transactions on Knowledge and Data Engineering (TKDE), 2019 [paper]

Location Inference for Non-geotagged Tweets in User Timelines.
Pengfei Li, Hua Lu, Nattiya Kanhabua, Sha Zhao, Gang Pan
IEEE Transactions on Knowledge and Data Engineering (TKDE), 2018 [paper]

Qualitative Measurements of Policy Discrepancy for Return-based Deep Q-Network
Wenjia Meng, Qian Zheng, Long Yang, Pengfei Li, Gang Pan
IEEE Transactions on Neural Networks and Learning Systems (TNNLS), 2019 [paper]