2019年至2020年，华为北京研究所，高级研究工程师
2022年至2025年，清华大学电子系博士后，助理研究员
2025年至今，北京科技大学，禁漫天堂 ，特聘副教授

长期研究网络通信与人工智能交叉领域
通信网络：智能网络与通信；边缘计算；网络AI等
AI算法及应用：分布式学习；联邦学习；大模型等

担任多个IEEE旗舰期刊审稿人，包括 IEEE Transactions on Mobile Computing (TMC)、IEEE/ACM Transactions on Networking (ToN)、IEEE Transactions on Neural Networks and Learning Systems (TNNLS) 等。

1. Cheng, Yujun, et al. "SnapCFL: A Pre-clustering-based Clustered Federated Learning Framework for Data and System Heterogeneities." IEEE Transactions on Mobile Computing (2025).
2. Cheng, Yujun, et al. "Towards Federated Large Language Models: Motivations, Methods, and Future Directions." IEEE Communications Surveys & Tutorials (2024). (IF = 46.7)
3. Cheng, Yujun, et al. "Contrastive Unsupervised Representation Learning With Optimize-Selected Training Samples." IEEE Transactions on Neural Networks and Learning Systems (2024).
4. Cheng, Yujun, et al. "RCIF: Toward Robust Distributed DNN Collaborative Inference Under Highly Lossy IoT Networks." IEEE Internet of Things Journal 11.15 (2024): 25939-25949.
5. Cheng, Yujun, et al. "Fed-sds: Adaptive Structured Dynamic Sparsity for Federated Learning under Heterogeneous Clients." ICASSP 2024-2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2024.

目前在深度学习及其交叉应用、智能通信、边缘计算等方向主持省部级项目1项，作为核心骨干，深度参与了国家自然科学基金重点项目与面上项目各1项，GF项目2项，完成4项企业横向合作项目。