Hello, There

I'm Junyu Li

Ph.D. @

About Me



I'm Junyu Li

I am a third year Ph.D. student at the Department of Computer Science, University of Warwick. My research focuses on Machine Learning and High-performance Computing (HPC). I received my Master's Degree in Data Analytics and Bachelor's Degree in Computer Science at the University of Warwick and the University of Sheffield respectively.


The research aims to apply HPC strategies such as utilizing GPUs to accelerate the training process for Deep Neural Networks.

Latest Work

My latest work focuses on solving delayed gradients issue in Asynchronous Stochastic Gradient Descent.

Previous Work

I proposed a real-time individual performance analysis and data pruning mechanism that reduces training consumption but keeps accuracy.


Pytorch is my favourite platform, where most of the works are based on. Besides, TensorFlow is another one that I used for the rest of time.

Conference Talk
Tutored Course

My Resume


My Resume


  • University of Warwick

    I am a seminar and lab tutor for a number of modules, for example, CS133 Professional Skills, CS140 Computer Security, CS260 Algorithm, CS402 High-performance Computing, and CS909 Data Mining during the Ph.D. studying. To be noted that, I was also granted the certification for teaching in higher education from passing related courses at the University of Warwick before doing the works. Such working experience significantly increases my knowledge in different fields, personal attributes and skills including: communication, planning, organising and time management.

  • China Mobile

    I was a data analyst working at the Internet Technology Center of China Mobile. With the development of LTE, the quality of content resources becomes an important factor affecting 4G end-to-end perception. My job was to dig into the big data of LTE daily usage information to build a Key Quality Indicators (KQI) and early warning models, so that enhances 4G user perception and experience. The work not only lets me practice a lot on the skills and knowledge gained from my degrees, but also earned a wealth of working experiences such as team working and problem-solving.


  • Ph.D.

    Ph.D. research builds me on state of the art knowledge, education and experience in my focused field of Machine Learning and High-performance Computing. It brings me several professional skills, where the vital one is the high-level individual research ability.

  • M.Sc Data Analytics

    Master's courses provided me with a distinctive perspective on data analytics that combines aspects of computer science, business, engineering and mathematics. Alongside the technical skills and expertise the course developed, my analytical and critical thinking skills has been dramatically upgraded.

  • B.Sc Computer Science

    Undergraduate studies raised me up with awareness of and ability to cope with and adapt to rapid technological changes. I gained a set of specialist knowledge in computer science theories, methods, practices and strategy, and has become pretty experienced in using a range of programming languages such as C/C++.

My Skills



Coding Skills


My Publications

Latest Work

My Publications

  • All
  • Machine Learning
  • Cloud Computing
  • Task Scheduling
  • Data Fine-pruning: A Simple Way to Accelerate Neural Network Training
    Junyu Li, Ligang He, Shenyuan Ren, and Rui Mao
    NPC 2018
  • vGrouper: Optimizing the Performance of Parallel Jobs in Xen by Increasing Synchronous Execution of Virtual Machines
    Peng Jiang, Ligang He, Shenyuan Ren, Junyu Li, and Yuhua Cui
    NPC 2018
  • Contention-aware Prediction for Performance Impact of Task Co-running in Multicore Computers
    Shenyuan Ren, Ligang He, Junyu Li, Zhiyan Chen, Peng Jiang, and Chang-Tsun Li
    The Journal of Mobile Communication, Computation and Information 2018
  • Scheduling DAG applications for time sharing systems
    Shenyuan Ren, Ligang He, Junyu Li, Chao Chen, and Zhuoer Gu
    ICA3PP 2018

What People Say?

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Get In Touch

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Office: +44 (0)2476523193


CS2.27, University of Warwick, Coventry, CV4 7AL, United Kingdom.