Publications

Statistics

1. NeurIPS Workshop

   SeqPAC: PAC-Certified Labeling with Sequential Ensembles

   Julie Zhu, Ashwin Chandramouli, Youssef Marzouk, … 2 more authors

   In TAE (Trust-AI-Eval): Can We Trust AI Evaluation?, NeurIPS Workshop, 2026
2. TMLR

   Conformal Prediction for Generative Models via Adaptive Cluster-Based Density Estimation

   Qidong Yang^*, Julie Zhu^*, Jonathan Giezendanner, … 3 more authors

   Transactions on Machine Learning Research, 2026

   arXiv Paper
3. COLM

   Online Reasoning Calibration: Test-Time Training Enables Generalizable Conformal LLM Reasoning

   Cai Zhou^*, Zekai Wang^*, Menghua Wu, Julie Zhu, … 5 more authors

   In Conference on Language Modeling (COLM), 2026

   arXiv Paper
4. NeurIPS

   Conformal Prediction under Lévy-Prokhorov Distribution Shifts: Robustness to Local and Global Perturbations

   Julie Zhu^*, Liviu Aolaritei^*, Oliver Wang^*, … 2 more authors

   In Advances in Neural Information Processing Systems (NeurIPS), 2025

   Paper

Math

1. arXiv

   Optimizing Irreversible Perturbations of the Unadjusted Langevin Algorithm

   Julie Zhu, Youssef Marzouk, Konstantinos Spiliopoulos, … 1 more author

   arXiv preprint, 2026

   Submitted to Statistics and Computing

   arXiv
2. arXiv

   On the design of scalable, high-precision spherical-radial Fourier features

   Ayoub Belhadji, Julie Zhu, and Youssef Marzouk

   arXiv preprint, 2024

   arXiv
3. AIHP

   Small mass limit of expected signature for physical Brownian motion

   Julie Zhu^*, Siran Li^*, and Hao Ni^*

   Annales de l’Institut Henri Poincaré, 2026

   In press

   arXiv Paper

Language Models

1. Manuscript

   Test the World Before You Ship: Persona Simulation for Real-World Decision Making

   Julie Zhu^*, Jianheng Hou^*, Zhixu Silvia Tao^*, … 20 more authors

   ^† These authors contributed equally as case-study owners.

   2026

   Manuscript
2. arXiv

   AgentPersonaBench: Benchmarking Persona-Driven User Simulation

   Jintao Huang, Yifan Wang, Hongyu Shen, …, Julie Zhu, … 42 more authors

   arXiv preprint, 2026

   arXiv
3. arXiv

   MatrAIx: Simulating the World with 8.3 Billion Persona Agents

   Xiaomin Li^*, Yuexing Hao^*, Jianheng Hou, …, Julie Zhu, … 89 more authors

   arXiv preprint, 2026

   arXiv
4. COLM Workshop

   PersonaEval: Persona-Based User Simulation for Evaluating Interactive Applications

   Yifan Simon Liu^*, Qianfeng Wen^*, Yilan Fan^*, …, Julie Zhu, … 39 more authors

   In Workshop on Social Simulation with LLMs, Conference on Language Modeling (COLM), 2026

   arXiv Paper
5. COLM Workshop

   MicroVerse: An Instrument for Measuring Self-Authored Identity Drift in Long-Horizon Multi-Agent Language-Model Simulations

   Sky Ng, Brihi Joshi, Ishan Gupta, …, Julie Zhu, … 42 more authors

   In Workshop on Social Simulation with LLMs, Conference on Language Modeling (COLM), 2026

   arXiv Paper
6. COLM Workshop

   Position: Synthetic Persona Needs Explicit Grounding and Standardized Reporting

   Yucheng Lu^*, Xiaoyi Liu^*, Heming Liu, …, Julie Zhu, … 39 more authors

   In Workshop on Social Simulation with LLMs, Conference on Language Modeling (COLM), 2026

   Paper