2026

A Game-Theoretic Spatio-Temporal Reinforcement Learning Framework for Collaborative Public Resource Allocation
A Game-Theoretic Spatio-Temporal Reinforcement Learning Framework for Collaborative Public Resource Allocation

Songxin Lei, Qiongyan Wang, Yanchen Zhu, Hanyu Yao, Sijie Ruan, Weilin Ruan, Yuyu Luo, Huaming Wu, Yuxuan Liang

ACM CIKM 2026, Rome, ITALY

[Code] [Paper] [Deployment]

A Game-Theoretic Spatio-Temporal Reinforcement Learning Framework for Collaborative Public Resource Allocation
A Game-Theoretic Spatio-Temporal Reinforcement Learning Framework for Collaborative Public Resource Allocation

Songxin Lei, Qiongyan Wang, Yanchen Zhu, Hanyu Yao, Sijie Ruan, Weilin Ruan, Yuyu Luo, Huaming Wu, Yuxuan Liang

ACM CIKM 2026, Rome, ITALY

[Code] [Paper] [Deployment]

MemoryCPT: An End-to-End Agent Memory Framework for Cost-Performance Trade-off
MemoryCPT: An End-to-End Agent Memory Framework for Cost-Performance Trade-off

Songxin Lei, Kun Ouyang, Weilin Ruan, Yuqian Wu, Zhijiang Guo, Yushi Sun, Fugee Tsung

Submitted to AAAI2027

[Code] [Paper]

MemoryCPT: An End-to-End Agent Memory Framework for Cost-Performance Trade-off
MemoryCPT: An End-to-End Agent Memory Framework for Cost-Performance Trade-off

Songxin Lei, Kun Ouyang, Weilin Ruan, Yuqian Wu, Zhijiang Guo, Yushi Sun, Fugee Tsung

Submitted to AAAI2027

[Code] [Paper]

Reinforcement Learning for UAV-based Participatory Sensing in Dynamic Environments
Reinforcement Learning for UAV-based Participatory Sensing in Dynamic Environments

Xin Ouyang, Songxin Lei, Xusen Guo, Yutian Jiang, Sijie Ruan, Yuxuan Liang

ACM SIGSPATIAL (Top GIS Conference) 2026, Riverside, CA, USA

[Code] [Paper]

Reinforcement Learning for UAV-based Participatory Sensing in Dynamic Environments
Reinforcement Learning for UAV-based Participatory Sensing in Dynamic Environments

Xin Ouyang, Songxin Lei, Xusen Guo, Yutian Jiang, Sijie Ruan, Yuxuan Liang

ACM SIGSPATIAL (Top GIS Conference) 2026, Riverside, CA, USA

[Code] [Paper]

ViST: Harnessing Vision Transformation and Reconstruction for Multi-modal Spatio-temporal Forecasting
ViST: Harnessing Vision Transformation and Reconstruction for Multi-modal Spatio-temporal Forecasting

Weilin Ruan, Siru Zhong, Haomin Wen, Songxin Lei, Yongzheng Liu, Xingchen Zou, Yuxuan Liang

ACM Multimedia (CCF-A) 2026, Rio de Janeiro, Brazil

[Code] [Paper]

ViST: Harnessing Vision Transformation and Reconstruction for Multi-modal Spatio-temporal Forecasting
ViST: Harnessing Vision Transformation and Reconstruction for Multi-modal Spatio-temporal Forecasting

Weilin Ruan, Siru Zhong, Haomin Wen, Songxin Lei, Yongzheng Liu, Xingchen Zou, Yuxuan Liang

ACM Multimedia (CCF-A) 2026, Rio de Janeiro, Brazil

[Code] [Paper]

Rewarding the Graph Behind the Chain: Topology-Aware Process Supervision for RL and Reasoning Distillation
Rewarding the Graph Behind the Chain: Topology-Aware Process Supervision for RL and Reasoning Distillation

Weilin Ruan, Songxin Lei, Haomin Wen, Zhuoming Zhu, Xixuan Hao, Hao Li, Yuxuan Liang

Submitted to EMNLP 2026

[Code] [Paper]

Rewarding the Graph Behind the Chain: Topology-Aware Process Supervision for RL and Reasoning Distillation
Rewarding the Graph Behind the Chain: Topology-Aware Process Supervision for RL and Reasoning Distillation

Weilin Ruan, Songxin Lei, Haomin Wen, Zhuoming Zhu, Xixuan Hao, Hao Li, Yuxuan Liang

Submitted to EMNLP 2026

[Code] [Paper]

Hierarchical Reinforcement Learning for Cooperative Air-Ground Delivery in Urban System
Hierarchical Reinforcement Learning for Cooperative Air-Ground Delivery in Urban System

Songxin Lei, Chunming Ma, Haomin Wen, Yexin Li, Lizhenghe Chen, Qianyu Yang, Fugee Tsung, Lei Chen, Sijie Ruan, Yuxuan Liang

ACM SIGKDD (CCF-A) 2026, Jeju, South Korea Oral (Top 6.1%)

[Code] [Paper] [Data]

Hierarchical Reinforcement Learning for Cooperative Air-Ground Delivery in Urban System
Hierarchical Reinforcement Learning for Cooperative Air-Ground Delivery in Urban System

Songxin Lei, Chunming Ma, Haomin Wen, Yexin Li, Lizhenghe Chen, Qianyu Yang, Fugee Tsung, Lei Chen, Sijie Ruan, Yuxuan Liang

ACM SIGKDD (CCF-A) 2026, Jeju, South Korea Oral (Top 6.1%)

[Code] [Paper] [Data]

Dynamic Location Planning For Shared Weighbridges In Ready-Mixed Concrete Logistics
Dynamic Location Planning For Shared Weighbridges In Ready-Mixed Concrete Logistics

Shuliang Wang, Qianyu Yang, Yexin Li, Lei Li, Songxin Lei, Haowen Zhu, Peng Hu, Qia Huang, Junyang Qiu, Yuxuan Liang, Sijie Ruan

Under review.

[Code] [Paper]

Dynamic Location Planning For Shared Weighbridges In Ready-Mixed Concrete Logistics
Dynamic Location Planning For Shared Weighbridges In Ready-Mixed Concrete Logistics

Shuliang Wang, Qianyu Yang, Yexin Li, Lei Li, Songxin Lei, Haowen Zhu, Peng Hu, Qia Huang, Junyang Qiu, Yuxuan Liang, Sijie Ruan

Under review.

[Code] [Paper]

Hierarchical Gradient-Informed Reinforcement Learning for Scalable and Partially Observable Dynamic Resource Allocation
Hierarchical Gradient-Informed Reinforcement Learning for Scalable and Partially Observable Dynamic Resource Allocation

Yanchen ZHU, Qiongyan WANG, Songxin Lei, Fugee Tsung, Lei Li, Yuxuan Liang

Under review.

[Code] [Paper]

Hierarchical Gradient-Informed Reinforcement Learning for Scalable and Partially Observable Dynamic Resource Allocation
Hierarchical Gradient-Informed Reinforcement Learning for Scalable and Partially Observable Dynamic Resource Allocation

Yanchen ZHU, Qiongyan WANG, Songxin Lei, Fugee Tsung, Lei Li, Yuxuan Liang

Under review.

[Code] [Paper]

2025

Federated MADDPG-Based Collaborative Scheduling Strategy in Vehicular Edge Computing
Federated MADDPG-Based Collaborative Scheduling Strategy in Vehicular Edge Computing

Songxin Lei, Huijun Tang, Chuangyi Li, Xueying Zhang, Chenli Xu, Huaming Wu

IEEE Transactions on Mobile Computing (CCF-A, SCI Q1 Top)

[Paper]

Federated MADDPG-Based Collaborative Scheduling Strategy in Vehicular Edge Computing
Federated MADDPG-Based Collaborative Scheduling Strategy in Vehicular Edge Computing

Songxin Lei, Huijun Tang, Chuangyi Li, Xueying Zhang, Chenli Xu, Huaming Wu

IEEE Transactions on Mobile Computing (CCF-A, SCI Q1 Top)

[Paper]

An empirical study of the anchoring effect in llms: existence, mechanism, and potential mitigations
An empirical study of the anchoring effect in llms: existence, mechanism, and potential mitigations

Yiming Huang, Biquan Bie, Zuqiu Na, Weilin Ruan, Songxin Lei, Yutao Yue, Xinlei He

ICLR 2026 Workshop, HCAIR

[Paper] [Data]

An empirical study of the anchoring effect in llms: existence, mechanism, and potential mitigations
An empirical study of the anchoring effect in llms: existence, mechanism, and potential mitigations

Yiming Huang, Biquan Bie, Zuqiu Na, Weilin Ruan, Songxin Lei, Yutao Yue, Xinlei He

ICLR 2026 Workshop, HCAIR

[Paper] [Data]

2024

Dissatisfaction feedback and stackelberg game-based task offloading mechanism for parked vehicle edge computing
Dissatisfaction feedback and stackelberg game-based task offloading mechanism for parked vehicle edge computing

Songxin Lei, Xinyao Guo, Junyi Li, Yixiao Wang, Yu Zhang, Lu Zheng, Huaming Wu

IEEE Transactions on Vehicular Technology (SCI Q2 Top)

[Paper]

Dissatisfaction feedback and stackelberg game-based task offloading mechanism for parked vehicle edge computing
Dissatisfaction feedback and stackelberg game-based task offloading mechanism for parked vehicle edge computing

Songxin Lei, Xinyao Guo, Junyi Li, Yixiao Wang, Yu Zhang, Lu Zheng, Huaming Wu

IEEE Transactions on Vehicular Technology (SCI Q2 Top)

[Paper]

2023

Intelligent Parking Lot System Based on Automatic Parking Hybrid Controller
Intelligent Parking Lot System Based on Automatic Parking Hybrid Controller

Junyi Li, Yixiao Wang, Songxin Lei, Xinyao Guo, Lu Zheng, Yu Zhang, Huaming Wu

2023 Chinese Automation Congress (CAC) Spotlight

[Paper]

Intelligent Parking Lot System Based on Automatic Parking Hybrid Controller
Intelligent Parking Lot System Based on Automatic Parking Hybrid Controller

Junyi Li, Yixiao Wang, Songxin Lei, Xinyao Guo, Lu Zheng, Yu Zhang, Huaming Wu

2023 Chinese Automation Congress (CAC) Spotlight

[Paper]