Zhefu Li - Staff Research Scientist, Decision Sciences at Epsilon

Zhefu Li

Staff Research Scientist, Decision Sciences at Epsilon

Chicago, Illinois, United States

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Summary

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Senior

🎓

Top School

Zhefu Li is a Staff Research Scientist in Decision Sciences with 12 years of experience bridging advanced machine learning, Python engineering, and applied research to drive customer identity and engagement solutions at Epsilon. Trained as a PhD chemist at the University of Chicago, he blends rigorous experimental thinking with production-focused model development to turn complex datasets into strategic, measurable outcomes. His background includes academic research at top institutions and policy-facing analytics work, giving him a rare mix of theoretical depth and practical insight. An active contributor to performance-sensitive open-source projects—such as enhancements to Intel’s media driver focused on codec and decode reliability—he brings systems-level understanding to ML pipelines and backend tooling. Based in Chicago, he excels at translating research into scalable products while maintaining attention to low-level implementation details that improve robustness.

12 years of coding experience

8 years of employment as a software developer

Visiting Student, Chemistry, Visiting Student, Chemistry at University of California, Berkeley

Bachelor of Science (B.Sc.), Chemistry, Bachelor of Science (B.Sc.), Chemistry at Nankai University

Doctor of Philosophy - PhD, Physical Chemistry, Doctor of Philosophy - PhD, Physical Chemistry at University of Chicago

Chinese, English

Github Skills (8)

c-language10

driver10

cprogramming-language10

intel10

video-codec10

graphic10

decoding10

hardware-acceleration9

Programming languages (2)

C++C

Github contributions (5)

intel/media-driver

Jan 2018 - Oct 2021

Intel Graphics Media Driver to support hardware decode, encode and video processing.

Role in this project:

Back-end Developer

Contributions:77 commits, 1 PR, 5 comments in 3 years 9 months

Contributions summary:Zhefu's contributions focus on enhancing the Intel Graphics Media Driver, particularly in the area of codec functionality. The commits involve adding and modifying cache settings for Video Decode/Encode Box (VDBOX) resources, addressing dump issues related to decode processes, and fixing issues around Surface Frame Compression (SFC) and the use of HEVC/VP9 processing. They have also worked on cleaning up decode keyword issues and integrating VP9 decode capabilities.

ZefuLI/libva

Jun 2019 - Dec 2020

Libva is an implementation for VA-API (VIdeo Acceleration API)

Contributions:27 pushes in 1 year 5 months

apiaccelerationvideo-apivideova-api

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