Felix Hähnlein

Interest statement

Hello there, I'm a computational design researcher. I'm particularly interested in how we can better understand artefacts and how we can make sustainable design decisions.
I'm a Postdoc at the University of Washington in the CSE department. My advisors are Gilbert Bernstein and Adriana Schulz. And I did my PhD with Adrien Bousseau at Inria, Sophia-Antipolis.
Here is my CV. Don't hesitate to contact me : fhahnlei [at] cs.washington.edu

Publications

Living Sustainability: In-Context Interactive Environmental Impact Communication

Zhihan Zhang, Pu Thavikulwat, Alexander Metzger, Yuxuan Mei, Felix Hähnlein, Zachary Englhardt, Gregory D. Abowd, Shwetak Patel, Adriana Schulz, Tingyu Cheng, Vikram Iyer
IMWUT '25 (Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies)

We combine environmental impact assessments with in-context browsing.
Paper (ACM link)

Towards a sustainable use of GPUs in Graphics Research

Emilie Yu, Élie Michel, Octave Crespel, Axel Paris, Felix Hähnlein
SIGGRAPH North America 2025 - Talk

What graphics hardware does the Computer Graphics research community use and how does it differ from user hardware?
Abstract
Project

Incorporating Sustainability in Electronics Design: Obstacles and Opportunities

Zachary Englhardt, Felix Hähnlein, Yuxuan Mei, Tong Lin, Connor Masahiro Sun, Zhihan Zhang, Shwetak Patel, Adriana Schulz, Vikram Iyer
CHI 2025, 🏆 Honorable Mention

What are some of the challenges that LCA experts encounter in the ICT industry?
Paper
Video presentation

Understanding and Supporting Debugging Workflows in CAD

Felix Hähnlein, Gilbert Bernstein, Adriana Schulz
UIST 2024

What should a debugger for CAD look like?
Paper
Video presentation

DeltaLCA: Comparative Life-Cycle Assessment for Electronics Design

Zhihan Zhang, Felix Hähnlein, Yuxuan Mei, Zachary Englhardt, Shwetak Patel, Adriana Schulz, Vikram Iyer
Ubicomp 2024

Instead of computing the absolute environmental impact of a PCB, should we maybe focus on the relative impact?
Paper

How Can Large Language Models Help Humans in Design And Manufacturing?

Liane Makatura, Michael Foshey, Bohan Wang, Felix Hähnlein, Pingchuan Ma, Bolei Deng, Megan Tjandrasuwita, Andrew Spielberg, Crystal Owens, Peter Yichen Chen, Allan Zhao, Amy Zhu, Wil Norton, Edward Gu, Joshua Jacob, Yifei Li, Adriana Schulz, Wojciech Matusik
Harvard Data Science Review, 2024

The research question is in the title!
Paper
Paper (short)

PhD Thesis: Binary Optimization for the Analysis and Synthesis of Concept Sketches

Felix Hähnlein
2022

Explore the beautiful world of concept sketches !
Thesis

CAD2Sketch : Generating Concept Sketches from CAD Sequences

Felix Hähnlein, Changjian Li, Niloy J. Mitra, Adrien Bousseau
SIGGRAPH Asia 2022

Can we translate CAD modeling sequences to concept sketches?
Paper
Project

Symmetry-driven 3D Reconstruction from Concept Sketches

Felix Hähnlein, Yulia Gryaditskaya, Alla Sheffer, Adrien Bousseau
SIGGRAPH North America 2022

How do we manage global discrete optimization for sketch-based modeling?
Paper
Project

Lifting Freehand Concept Sketches into 3D

Yulia Gryaditskaya, Felix Hähnlein, Chenxi Liu, Alla Sheffer, Adrien Bousseau
SIGGRAPH Asia 2020

Can we apply discrete optimization to sketch-based modeling?
Paper
Project

Bitmap or Vector? A study on sketch representations for deep stroke segmentation

Felix Hähnlein, Yulia Gryaditskaya, Adrien Bousseau
Journées Françaises d'Informatique Graphique 2019

Are bitmap or vector representations better for sketch segmentation?
Paper