About Me

I am a Ph.D. student and graduate research assistant in Industrial & Systems Engineering at Lehigh University, advised by Prof. Frank E. Curtis and Prof. Daniel P. Robinson. My research brings optimization rigor to modern machine-learning systems, with a focus on exact fairness constraints, scalable neural-network training, and stochastic optimization.

I develop theory and end-to-end experimental pipelines in PyTorch and CUDA. Before joining Lehigh, I earned my master's degree in Industrial Engineering from Sharif University of Technology.

Zahra with her dog

Outside of research, I absolutely love dogs. They never fail to make me smile!

Publications

Fair Supervised Learning Through Constraints on Smooth Nonconvex Unfairness-Measure Surrogates
Zahra Khatti, Daniel P. Robinson, and Frank E. Curtis
Refereed Proceedings of the 2026 INFORMS Optimization Society Conference (IOS 2026), 2026
Low-Order Explicit Hessian Imitation Method for Large-Scale Supervised Machine Learning
Yunlang Zhu, Lingjun Guo, Zahra Khatti, Xiaoyi Qu, Chia-Yuan Wu, Lara Zebiane, and Frank E. Curtis
Preprint, arXiv:2605.06945, 2026

Research & Projects

Fair Supervised Learning with Exact Constraints

Open-source Python package · v0.1.0

Released fairget for training binary PyTorch classifiers with differentiable fairness constraints and matched unconstrained baselines. It supports demographic parity, disparate impact, and equal opportunity.

Fair ML Constrained Optimization PyTorch

Adaptive Sampling Interior-Point Method

Developed an adaptive-sampling solver for stochastic optimization that combines retrospective approximation with barrier methods and sample-size control; validated on CUTEst problems with more than 4,000 variables.

Stochastic Optimization Interior-Point Methods Python/SciPy

Teaching & Service

Co-Chair, MOPTA 2026, GradOpt & ColOpt

Lehigh University · 2025–2026

Co-organized Lehigh ISE's four-day optimization program, coordinating invited speakers, technical sessions, scheduling, and logistics across the GradOpt workshop, MOPTA conference, and ColOpt junior-faculty colloquium.

OptML Group Tutorial: LLMs, Transformers & Hugging Face

Lehigh ISE · 2026

Led a technical tutorial for the OptML group on the foundations of large language models, Transformer architectures, and practical workflows in the Hugging Face ecosystem.