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Xuefei Wang

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#machine learning Preprint Oct 2026

MAGIC: Topology-Aware Analytic Graph Few-Shot Class-Incremental Learning

Graph few-shot class-incremental learning (GFSCIL) requires a model to continually recognize emerging classes from only a few labeled nodes while preserving previously acquired knowledge. Beyond the catastrophic forgetting inherited from conventional graph continual learning, GFSCIL presents two distinctive challenges:...

Jun-Lin Chen, Yu-Han Wang, Xue-Fei Wang et al. · 0 citations
Book Open access Aug 2026

From Generic Intelligence to Personalized AI: A Tutorial on Foundations of LLM Personalization

Large language models (LLMs) have achieved remarkable success across diverse applications, yet their generic training paradigm limits effectiveness in user-specific scenarios. LLM personalization aims to adapt large models to individual users or user groups by incorporating preferences, histories, and contextual signal...

Rui-Jie Wang, Qing-Kai Zeng, Xuefei Wang et al. · 0 citations
Preprint Aug 2026

Learning to Adapt Cross-Domain Preferences via Meta-LoRA for LLM Personalization

PAC-Bayes-regularized Meta-LoRA is proposed, which uses a meta-learned LoRA initialization as both the adaptation start and prior center, while adjusting update strength according to support-set size and predictive uncertainty to limit overfitting under sparse or ambiguous evidence.

Xuefei Wang, Jun Han, Zi-Xuan Wang et al. · 0 citations

HiFloat4 Format for Language Model Pre-training on Ascend NPUs

It is argued that numerical format design is itself a first-class lever for stable FP4 training, and the first systematic study of FP4 LLM pretraining on energy-efficient Huawei Ascend NPUs is presented.

Mehran Taghian, Yun Peng, Xing Huang et al. · 3 citations
Preprint Aug 2026

Idea Search: Guiding Tree Search with Ideas to Explore Diverse Scientific Methods

Ide Search is proposed, a framework that systematically integrates a dynamic"Idea Bank" into Tree Search, a framework that systematically integrates a dynamic bank of ideas into Tree Search, and reliably breaks the plateau of a strong pure Tree Search baseline.

Xuefei Wang, Hao Cui, Michael P. Brenner et al. · 0 citations

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