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Shuhan Zhang | Research

Incoming Ph.D. student in Machine Learning (CSE)

Shuhan Zhang

Georgia Institute of Technology

I am an incoming Ph.D. student in Machine Learning (CSE) at Georgia Tech, advised by Prof. Kai Wang. My research lies at the intersection of agent evolution, decision-making, and optimization.

I study how intelligent systems can improve not only a solution, but also the process that produces it: the algorithms they search, the feedback they use, and the evaluation mechanisms that guide them. I am also interested in interpretable choice models and reinforcement learning through the lens of optimization.

Previously, I completed my B.S. at CUHK-Shenzhen, visited the University of Pennsylvania, conducted research at UT Austin, and worked as a research intern at Microsoft Research Asia.

Shuhan Zhang

News

I will join Georgia Tech as an incoming Ph.D. student in Machine Learning (CSE).

I joined Microsoft Research Asia as a research intern, studying feedback in agentic algorithm discovery.

DeepHalo was presented as a Spotlight at NeurIPS 2025.

Logic-Logit was accepted to ICLR 2025.

Research interests

Agent evolution

Algorithm discovery, recursive self-improvement, harness evolution, and feedback-system design.

AI for decision-making

Choice modeling, decision-focused learning, preference learning, and human–AI interaction.

Optimization & learning

Reinforcement learning, Wasserstein geometry, differentiable optimization, and online learning.

Selected publications & projects

Full list on Google Scholar ↗
2026

Is Auxiliary Feedback a Free Lunch for Agentic Algorithm Discovery?

Shuhan Zhang*, Lu Wang†, Shuang Li, Qingwei Lin, Dongmei Zhang, Hongyuan Zha, Saravan Rajmohan, Qi Zhang

Working paper · Agentic AI · Algorithm discovery

A mechanism-driven study of when richer feedback helps—or misleads—coding agents searching for better algorithms.

2025

DeepHalo: A Neural Choice Model with Controllable Context Effects

Shuhan Zhang, Zhi Wang, Rui Gao, Shuang Li

NeurIPS 2025 · Spotlight · Choice modeling · Interpretable ML

A neural choice model that captures high-order context effects while allowing explicit control over interaction order.

2025

Logic-Logit: A Logic-Based Approach to Choice Modeling

Shuhan Zhang, Wendi Ren, Shuang Li

ICLR 2025 · Poster · Interpretable ML · Discrete choice

An interpretable choice model built from sparse logical rules and trained through column generation and Frank–Wolfe optimization.

2026

Wasserstein Proximal Policy Gradient

Shuhan Zhang et al.

Under review · Reinforcement learning · Wasserstein geometry

Policy optimization through Wasserstein geometry, with expressive implicit policy classes and distributional updates.

Education & experience

Ph.D. in Machine Learning (CSE)

Georgia Institute of Technology

Incoming student; advised by Prof. Kai Wang

Research Intern

Microsoft Research Asia

Agentic algorithm discovery and feedback systems

Summer Researcher

The University of Texas at Austin

Reinforcement learning and policy optimization

Visiting Student

University of Pennsylvania

Optimization, Bayesian analysis, and game theory

B.S. in Data Science

The Chinese University of Hong Kong, Shenzhen

GPA 3.9/4.0 · Dean’s List