About me

Hello! I'm a Data Science Master student at ETH Zurich, where I have worked on egocentric vision research projects with Dr. Xi Wang , Prof. Marc Pollefeys at the Computer Vision & Geometry Group, and Prof. Luc Van Gool at the Computer Vision Lab, as well as agriculture-vision projects with Swiss Data Science Center. Before that, I obtained a dual B.S. degree in Data Science and Applied Mathematics from the University of Rochester — Go Yellowjackets! 🐝

My research interests lie in 3D vision and video understanding.

Publications

EgoGaussian: Dynamic Scene Understanding from Egocentric Video with 3D Gaussian Splatting
Daiwei Zhang, Gengyan Li, Jiajie Li, Mickaël Bressieux, Otmar Hilliges, Marc Pollefeys, Luc Van Gool, Xi Wang
Accepted at International Conference on 3D Vision (3DV) 2025
Project / arXiv / Code

Recontruct 3D scenes and dynamically tracking 3D object motion from RGB egocentric input alone.

The COVID-19 pandemic and mental health concerns on Twitter in the U.S.
Senqi Zhang, Li Sun, Daiwei Zhang, Pin Li, Yue Liu, Ajay Anand, Zidian Xie, Dongmei Li
Health Data Science 2022
Paper

Projects

3D Understanding of Wheat Fields for Phenotypic Trait Extraction
Semester project with Swiss Data Science Center (SDSC) and Institute of Agricultural Sciences
arXiv in preparation

A multi-scale reconstruction pipeline capable of modeling both the entire wheat field and individual wheat heads, using high-throughput RGB data collected with the Field Phenotyping Platform (FIP).

MapSAM: Adapting Segment Anything Model for Automated Feature Detection in Historical Maps
Xue Xia, Daiwei Zhang, Wenxuan Song, Wei Huang, Lorenz Hurni
Submitted to IEEE Transactions on Geoscience and Remote Sensing
Final Project for Research Topics in Cartography
arXiv

A parameter-efficient fine-tuning strategy that adapts SAM into a prompt-free and versatile solution for various downstream historical map segmentation tasks.

MoE Technique on LLM for Math Reasoning Problems
Final Project for Computational Semantics for Natural Language Processing
Report

Improved the performance of GPT2 and DialoGPT on multi-step mathematical reasoning problems by applying Mixture-of-Experts technique to a novel reasoning scheme called Socratic chain-of-thoughts (CoT).

DeepQSort
Data Science Lab project with Empa
Code

A ViT-based pipeline for efficient wood quality assessment.