Yongji Wu

Email: yongji [at] yongjiwu [dot] me

I am a final year PhD student in Computer Science at Duke University, where I am fortunate to be advised by Prof. Danyang Zhuo and Prof. Matthew Lentz. Before that, I received my Bachelor degree from the School of the Gifted Young at University of Science and Technology of China in 2020, where I worked with Prof. Defu Lian.

My research interests include datacenter networks and machine learning systems. I build systems for high-performance and manageable machine learning training and inference in multi-tenant datacenters and cloud environments. I have also worked on data mining, recommender systems and differential privacy before.

selected publications

SIGCOMM

MCCS: A Service-based Approach to Collective Communication for Multi-Tenant Cloud

Yongji Wu, Yechen Xu, Jingrong Chen, Zhaodong Wang, Ying Zhang, Matthew Lentz, and Danyang Zhuo

ACM SIGCOMM 2024 Conference (SIGCOMM), 2024

Bib PDF Code

@article{wu2024mccs,
  title = {MCCS: A Service-based Approach to Collective Communication for Multi-Tenant Cloud},
  author = {Wu, Yongji and Xu, Yechen and Chen, Jingrong and Wang, Zhaodong and Zhang, Ying and Lentz, Matthew and Zhuo, Danyang},
  journal = {ACM SIGCOMM 2024 Conference (SIGCOMM)},
  year = {2024},
}

NSDI

Remote Procedure Call as a Managed System Service

Jingrong Chen^*, Yongji Wu^*, Shihan Lin, Yechen Xu, Xinhao Kong, Thomas Anderson, Matthew Lentz, Xiaowei Yang, and Danyang Zhuo

The 20th USENIX Symposium on Networked Systems Design and Implementation (NSDI), 2023

Bib PDF Code Slides

@article{chen2023remote,
  title = {Remote Procedure Call as a Managed System Service},
  author = {Chen, Jingrong and Wu, Yongji and Lin, Shihan and Xu, Yechen and Kong, Xinhao and Anderson, Thomas and Lentz, Matthew and Yang, Xiaowei and Zhuo, Danyang},
  journal = {The 20th USENIX Symposium on Networked Systems Design and Implementation (NSDI)},
  pages = {141--159},
  year = {2023},
}

VLDB

Serving and Optimizing Machine Learning Workflows on Heterogeneous Infrastructures

Yongji Wu, Matthew Lentz, Danyang Zhuo, and Yao Lu

The 49th International Conference on Very Large Data Bases (VLDB), 2023

Bib PDF Code Slides

@article{wu2022serving,
  title = {Serving and Optimizing Machine Learning Workflows on Heterogeneous Infrastructures},
  author = {Wu, Yongji and Lentz, Matthew and Zhuo, Danyang and Lu, Yao},
  journal = {The 49th International Conference on Very Large Data Bases (VLDB)},
  year = {2023},
}

USENIX Security

Poisoning Attacks to Local Differential Privacy Protocols for Key-Value Data

Yongji Wu, Xiaoyu Cao, Jinyuan Jia, and Neil Zhenqiang Gong

The 31st USENIX Security Symposium (USENIX Security), 2022

Bib PDF Slides

@article{wu2022poisoning,
  title = {Poisoning Attacks to Local Differential Privacy Protocols for Key-Value Data},
  author = {Wu, Yongji and Cao, Xiaoyu and Jia, Jinyuan and Gong, Neil Zhenqiang},
  journal = {The 31st USENIX Security Symposium (USENIX Security)},
  pages = {519--536},
  year = {2022},
}

service

Conference Reviwer	KDD 2024, ACML 2024, SDM 2024, KDD 2023
Journal Reviwer	Frontiers in Big Data