activity
20242026
collaborators

6 papers

cs.LG2026

Single-loop Algorithms for Stochastic Non-convex Optimization with Weakly-Convex Constraints

Ming Yang, Gang Li, Quanqi Hu +2

Constrained optimization with multiple functional inequality constraints has significant applications in machine learning. This paper examines a crucial subset of such problems whe…

cs.LG2025

Stochastic Momentum Methods for Non-smooth Non-Convex Finite-Sum Coupled Compositional Optimization

Xingyu Chen, Bokun Wang, Ming Yang +2

Finite-sum Coupled Compositional Optimization (FCCO), characterized by its coupled compositional objective structure, emerges as an important optimization paradigm for addressing a…

cs.LG2025

Learning to Rank with Top- Fairness

Boyang Zhang, Quanqi Hu, Mingxuan Sun +2

Fairness in ranking models is crucial, as disparities in exposure can disproportionately affect protected groups. Most fairness-aware ranking systems focus on ensuring comparable a…

math.OC2024

Single-Loop Stochastic Algorithms for Difference of Max-Structured Weakly Convex Functions

Quanqi Hu, Qi Qi, Zhaosong Lu +1

In this paper, we study a class of non-smooth non-convex problems in the form of , where both $Φ(x) = \max_{y\in Y}ϕ(x, y…

math.OC2024

Non-Smooth Weakly-Convex Finite-sum Coupled Compositional Optimization

Quanqi Hu, Dixian Zhu, Tianbao Yang

This paper investigates new families of compositional optimization problems, called on-mooth eakly-onvex…

cs.LG2024

Provable Optimization for Adversarial Fair Self-supervised Contrastive Learning

Qi Qi, Quanqi Hu, Qihang Lin +1

This paper studies learning fair encoders in a self-supervised learning (SSL) setting, in which all data are unlabeled and only a small portion of them are annotated with sensitive…