activity
20202025
most citedSelf-PU: Self Boosted and Calibrated Positive-Unlabeled Training

29 citations · 60 across the 10 of their papers we have counts for

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11 papers · 1 filter

cs.LG2025

LoX: Low-Rank Extrapolation Robustifies LLM Safety Against Fine-tuning

Gabriel J. Perin, Runjin Chen, Xuxi Chen +3

Large Language Models (LLMs) have become indispensable in real-world applications. However, their widespread adoption raises significant safety concerns, particularly in responding…

cs.LG2025

Make Optimization Once and for All with Fine-grained Guidance

Mingjia Shi, Ruihan Lin, Xuxi Chen +8

Learning to Optimize (L2O) enhances optimization efficiency with integrated neural networks. L2O paradigms achieve great outcomes, e.g., refitting optimizer, generating unseen solu…

cs.LG20243 cited

Take the Bull by the Horns: Hard Sample-Reweighted Continual Training Improves LLM Generalization

Xuxi Chen, Zhendong Wang, Daouda Sow +5

In the rapidly advancing arena of large language models (LLMs), a key challenge is to enhance their capabilities amid a looming shortage of high-quality training data. Our study st…

cs.LG2023

Rethinking PGD Attack: Is Sign Function Necessary?

Junjie Yang, Tianlong Chen, Xuxi Chen +2

Neural networks have demonstrated success in various domains, yet their performance can be significantly degraded by even a small input perturbation. Consequently, the construction…

cs.LG20231 cited

Sparsity May Cry: Let Us Fail (Current) Sparse Neural Networks Together!

Shiwei Liu, Tianlong Chen, Zhenyu Zhang +4

Sparse Neural Networks (SNNs) have received voluminous attention predominantly due to growing computational and memory footprints of consistently exploding parameter count in large…

cs.LG20216 cited

You are caught stealing my winning lottery ticket! Making a lottery ticket claim its ownership

Xuxi Chen, Tianlong Chen, Zhenyu Zhang +1

Despite tremendous success in many application scenarios, the training and inference costs of using deep learning are also rapidly increasing over time. The lottery ticket hypothes…