Hongyi Zhou

A hybrid algorithm for quadratically constrained quadratic optimization problems

2023 · arXiv (Cornell University)

Quadratically Constrained Quadratic Programs (QCQPs) are an important class of optimization problems with diverse real-world applications. In this work, we propose a variational quantum algorithm for general QCQPs. By encoding the variables on the amplitude …

Doubly Robust Alignment for Large Language Models

2025

This paper studies reinforcement learning from human feedback (RLHF) for aligning large language models with human preferences. While RLHF has demonstrated promising results, many algorithms are highly sensitive to misspecifications in the underlying preference model …