activity
20242026
most citedWhy Transformers Need Adam: A Hessian Perspective

2 citations · 3 across the 9 of their papers we have counts for

collaborators

10 papers

cs.CL2026

SLAI T-Rex: Full-Parameter Post-training of the DeepSeek-V4 Family on Ascend SuperPOD

Dongfang Li, Xiaodong Luo, Ruoyu Sun +62

Full-parameter post-training of trillion-parameter-scale MoE models introduces substantial system-level challenges for large-scale distributed training, including severe memory pre…

cs.LG2026

A Geometric Characterization of the Stationary Plateau for Two-Layer Neural Networks

Tian Ding, Dawei Li, Ruoyu Sun

We investigate the geometric structure of stationary plateaus that arise in the loss landscape of two-layer neural networks with smooth activation functions. We focus on the phenom…

cs.LG2025

Learning to Gridize: Segment Physical World by Wireless Communication Channel

Juntao Wang, Feng Yin, Tian Ding +3

Gridization, the process of partitioning space into grids where users share similar channel characteristics, serves as a fundamental prerequisite for efficient large-scale network…

cs.LG2025

Exploring and Improving Initialization for Deep Graph Neural Networks: A Signal Propagation Perspective

Senmiao Wang, Yupeng Chen, Yushun Zhang +2

Graph Neural Networks (GNNs) often suffer from performance degradation as the network depth increases. This paper addresses this issue by introducing initialization methods that en…

math.OC2024

An Efficient Unsupervised Framework for Convex Quadratic Programs via Deep Unrolling

Linxin Yang, Bingheng Li, Tian Ding +6

Quadratic programs (QPs) arise in various domains such as machine learning, finance, and control. Recently, learning-enhanced primal-dual hybrid gradient (PDHG) methods have shown…

math.OC2024

On Representing Convex Quadratically Constrained Quadratic Programs via Graph Neural Networks

Chenyang Wu, Qian Chen, Akang Wang +4

Convex quadratically constrained quadratic programs (QCQPs) involve finding a solution within a convex feasible region defined by quadratic constraints while minimizing a convex qu…

cs.LG2024

MoFO: Momentum-Filtered Optimizer for Mitigating Forgetting in LLM Fine-Tuning

Yupeng Chen, Senmiao Wang, Yushun Zhang +5

Large language models (LLMs) have demonstrated remarkable capabilities across a wide range of tasks. Typically, LLMs are first pre-trained on large corpora and subsequently fine-tu…

cs.LG2024

PDHG-Unrolled Learning-to-Optimize Method for Large-Scale Linear Programming

Bingheng Li, Linxin Yang, Yupeng Chen +8

Solving large-scale linear programming (LP) problems is an important task in various areas such as communication networks, power systems, finance and logistics. Recently, two disti…

cs.LG2024★ 1 cited

Adam-mini: Use Fewer Learning Rates To Gain More

Yushun Zhang, Congliang Chen, Ziniu Li +6

We propose Adam-mini, an optimizer that achieves on par or better performance than AdamW with 50% less memory footprint. Adam-mini reduces memory by cutting down the learning rate…

cs.LG2024★ 2 cited

Why Transformers Need Adam: A Hessian Perspective

Yushun Zhang, Congliang Chen, Tian Ding +3

SGD performs worse than Adam by a significant margin on Transformers, but the reason remains unclear. In this work, we provide an explanation through the lens of Hessian: (i) Trans…