activity
20242026
most citedDecentralized Bilevel Optimization: A Perspective from Transient Iteration Complexity

1 citations · 1 across the 11 of their papers we have counts for

collaborators

12 papers

cs.LG2026

How Bregman Divergences Shape Shampoo

Bing Liu, Wenjie Zhou, Chengcheng Zhao +4

Understanding the principles behind Shampoo has recently guided the development of more effective neural network optimizers. These methods learn a preconditioner by optimizing the…

cs.AI2026

ReasFlow: Assisting Reasoning-Centric Scientific Discovery in Applied Mathematics via a Knowledge-Based Multi-Agent System

Yutong He, Daibo Li, Guohong Li +15

Recent advances in Large Language Models have fueled autonomous AI agents capable of tackling complex scientific tasks, yet existing automated research systems remain predominantly…

cs.LG2026

GNMR: Runtime Stability Control for Low-Precision Large Language Model Training

Boao Kong, Weichen Jia, Engao Zhang +6

Training stability is a key bottleneck in low-precision language model training: efficient low-cost paths can still produce short-lived numerical risks at a small set of operators.…

cs.LG2026

BROS: Bias-Corrected Randomized Subspaces for Memory-Efficient Single-Loop Bilevel Optimization

Hengrui Zhang, Boao Kong, Engao Zhang +1

Stochastic bilevel optimization (SBO) has become a standard framework for hyperparameter learning, data reweighting, representation learning, and data-mixture optimization in deep…

math.OC2026

SUDA-Muon: Structural Design Principles and Boundaries for Fully Decentralized Muon

Hengrui Zhang, Boao Kong, Jiahe Geng +1

Fully decentralized Muon is difficult because its nonlinear matrix-sign operator does not commute with linear gossip averaging. This makes decentralized Muon a structural design pr…

math.OC2026

On the Convergence of Stochastic Gradient Descent with Perturbed Forward-Backward Passes

Boao Kong, Hengrui Zhang, Kun Yuan

We study stochastic gradient descent (SGD) for composite optimization problems with sequential operators subject to perturbations in both the forward and backward passes. Unlik…

cs.LG2026

Synergistic Intra- and Cross-Layer Regularization Losses for MoE Expert Specialization

Rizhen Hu, Yuan Cao, Boao Kong +2

Sparse Mixture-of-Experts (MoE) models scale Transformers efficiently but suffer from expert overlap -- redundant representations across experts and routing ambiguity, resulting in…

cs.LG2025

Row-Stochastic Matrices Can Provably Outperform Doubly Stochastic Matrices in Decentralized Learning

Bing Liu, Boao Kong, Limin Lu +2

Decentralized learning often involves a weighted global loss with heterogeneous node weights . We revisit two natural strategies for incorporating these weights: (i) embedding t…

math.OC2025

Clapping: Removing Per-sample Storage for Pipeline Parallel Distributed Optimization with Communication Compression

Boao Kong, Xu Huang, Yuqi Xu +3

Pipeline-parallel distributed optimization is essential for large-scale machine learning but is challenged by significant communication overhead from transmitting high-dimensional…

cs.LG2025

CR-Net: Scaling Parameter-Efficient Training with Cross-Layer Low-Rank Structure

Boao Kong, Junzhu Liang, Yuxi Liu +2

Low-rank architectures have become increasingly important for efficient large language model (LLM) pre-training, providing substantial reductions in both parameter complexity and m…

math.OC2024

SPARKLE: A Unified Single-Loop Primal-Dual Framework for Decentralized Bilevel Optimization

Shuchen Zhu, Boao Kong, Songtao Lu +2

This paper studies decentralized bilevel optimization, in which multiple agents collaborate to solve problems involving nested optimization structures with neighborhood communicati…

math.OC2024★ 1 cited

Decentralized Bilevel Optimization: A Perspective from Transient Iteration Complexity

Boao Kong, Shuchen Zhu, Songtao Lu +2

Stochastic bilevel optimization (SBO) is becoming increasingly essential in machine learning due to its versatility in handling nested structures. To address large-scale SBO, decen…