activity
20242026
most citedMulti-Task Model Merging via Adaptive Weight Disentanglement

1 citations · 1 across the 12 of their papers we have counts for

collaborators

13 papers

cs.AI2026

MemAgent: Learning to Manage Heterogeneous Memory Providers for LLM Agents

Yongxian Wei, Yilin Zhao, Runxi Cheng +5

Current agents remain largely stateless across tasks, limiting their ability to continually improve from prior interactions and making memory essential for long-horizon agentic beh…

cs.LG2026

Closed-Form Spectral Regularization for Multi-Task Model Merging

Yongxian Wei, Runxi Cheng, Xingxuan Zhang +4

Model merging combines several independently fine-tuned experts into a single multi-task model without any training data, reducing the storage, serving, and decentralized-developme…

cs.CL2026

Memory Grafting: Scaling Language Model Pre-training via Offline Conditional Memory

Runxi Cheng, Yuchen Guan, Yongxian Wei +7

Scaling conditional memory offers a promising way to increase language-model capacity, but existing methods such as Engram learn large memory tables from scratch during pre-trainin…

cs.CL2026

Spectral Characterization and Mitigation of Sequential Knowledge Editing Collapse

Chi Zhang, Mengqi Zhang, Xiaotian Ye +5

Sequential knowledge editing in large language models often causes catastrophic collapse of the model's general abilities, especially for parameter-modifying methods. Existing appr…

cs.AI2025

Learning to Pose Problems: Reasoning-Driven and Solver-Adaptive Data Synthesis

Yongxian Wei, Yilin Zhao, Zixuan Hu +7

Data synthesis for training large reasoning models offers a scalable alternative to limited, human-curated datasets, enabling the creation of high-quality data. However, existing a…

cs.CL2025

Mixture of Neuron Experts

Runxi Cheng, Yuchen Guan, Yucheng Ding +6

In this work, we first explore whether the parameters activated by the MoE layer remain highly sparse at inference. We perform a sparsification study on several representative MoE…

cs.AI2025

OptMerge: Unifying Multimodal LLM Capabilities and Modalities via Model Merging

Yongxian Wei, Runxi Cheng, Weike Jin +7

Foundation models update slowly due to resource-intensive training, whereas domain-specific models evolve rapidly between releases. Model merging seeks to combine multiple expert m…

cs.AI2025

HS-STaR: Hierarchical Sampling for Self-Taught Reasoners via Difficulty Estimation and Budget Reallocation

Feng Xiong, Hongling Xu, Yifei Wang +3

Self-taught reasoners (STaRs) enhance the mathematical reasoning abilities of large language models (LLMs) by leveraging self-generated responses for self-training. Recent studies…

cs.LG2025

Whoever Started the Interference Should End It: Guiding Data-Free Model Merging via Task Vectors

Runxi Cheng, Feng Xiong, Yongxian Wei +2

Model merging seeks to integrate task-specific expert models into a unified architecture while preserving multi-task generalization capabilities, yet parameter interference between…

cs.CV2024

GSRender: Deduplicated Occupancy Prediction via Weakly Supervised 3D Gaussian Splatting

Qianpu Sun, Changyong Shu, Sifan Zhou +6

Weakly-supervised 3D occupancy perception is crucial for vision-based autonomous driving in outdoor environments. Previous methods based on NeRF often face a challenge in balancing…

cs.LG2024★ 1 cited

Multi-Task Model Merging via Adaptive Weight Disentanglement

Feng Xiong, Runxi Cheng, Wang Chen +4

Model merging has recently gained attention as an economical and scalable approach to incorporate task-specific weights from various tasks into a unified multi-task model. For exam…

cs.CV2024

Enhancing Logits Distillation with Plug\&Play Kendall's Ranking Loss

Yuchen Guan, Runxi Cheng, Kang Liu +1

Knowledge distillation typically minimizes the Kullback-Leibler (KL) divergence between teacher and student logits. However, optimizing the KL divergence can be challenging for the…

cs.LG2024

Learn To Learn More Precisely

Runxi Cheng, Yongxian Wei, Xianglong He +5

Meta-learning has been extensively applied in the domains of few-shot learning and fast adaptation, achieving remarkable performance. While Meta-learning methods like Model-Agnosti…