Yen-Hsiang Chang

My research interests lie in the general area of high-performance computing, particularly in parallel programming and algorithms, with the focus on graph algorithms and applied numerical linear algebra.

I am a third-year EECS Ph.D. student at UC Berkeley, advisded by Prof. Jim Demmel. I recently advanced to candidacy after passing my Qualifying Examination in May 2026. During my first two years, I was also co-advised by Dr. Aydın Buluç. I am associated with Sparsitute, PASSION Lab and BeBOP.

I received my B.S. in Computer Engineering from UIUC in 2022, with Highest Honors and with a minor in Mathematics. I have had the privilege to work with Prof. Wen-mei Hwu, Prof. Rakesh Nagi, and Prof. Jinjun Xiong at Illinois.

If you'd like to learn more about me, please see my CV or contact me via email.

news

May 26, 2026 05/26/26	Summer plans: I will be at NVIDIA (Santa Clara campus) working as a Linear Algebra Libraries Intern.
May 5, 2026 05/05/26	I passed my qualifying exam! Check out my slides.
Nov 17, 2025 11/17/25	Our paper "Parallelizing the Approximate Minimum Degree Algorithm: Strategies and Evaluation" was accepted to SIAM PP 2026.

recent & upcoming talks

May 5, 2026

UC Berkeley Qualifying Exam

Parallelizing the Analysis Phase of Sparse Direct Linear Equation Solvers

Slides

Mar 3, 2026

SIAM Conference on Parallel Processing for Scientific Computing (PP26), Berlin, Germany

Parallelizing the Approximate Minimum Degree Ordering Algorithm: Strategies and Evaluation

Slides

Jul 31, 2025

SIAM Conference on Applied and Computational Discrete Algorithms (ACDA25), Montréal, Canada

Parallelizing the Approximate Minimum Degree Ordering Algorithm: Strategies and Evaluation (Extended Abstract)
⭐ Best Presentation Award

Slides

selected publications

Parallelizing the Approximate Minimum Degree Ordering Algorithm: Strategies and Evaluation

Yen-Hsiang Chang, Aydın Buluç, James Demmel

In Proceedings of the 2026 SIAM Conference on Parallel Processing for Scientific Computing (PP), 2026

Bib Pdf Code Slides

@inproceedings{chang2026parallelizing,
    author = "Chang, Yen-Hsiang and Buluç, Aydın and Demmel, James",
    title = "Parallelizing the Approximate Minimum Degree Ordering Algorithm: Strategies and Evaluation",
    booktitle = "Proceedings of the 2026 SIAM Conference on Parallel Processing for Scientific Computing (PP)",
    pages = "1--15",
    year = "2026",
    organization = "SIAM"
}

PACT

Parallelizing Maximal Clique Enumeration on GPUs

Mohammad Almasri*, Yen-Hsiang Chang*, Izzat El Hajj, Rakesh Nagi, Jinjun Xiong, Wen-mei Hwu

In 2023 32nd International Conference on Parallel Architectures and Compilation Techniques (PACT), 2023

Bib Pdf Code Slides

@inproceedings{almasri2023parallelizing,
    author = "Almasri*, Mohammad and Chang*, Yen-Hsiang and El Hajj, Izzat and Nagi, Rakesh and Xiong, Jinjun and Hwu, Wen-mei",
    title = "Parallelizing Maximal Clique Enumeration on GPUs",
    booktitle = "2023 32nd International Conference on Parallel Architectures and Compilation Techniques (PACT)",
    pages = "162--175",
    year = "2023",
    organization = "IEEE"
}