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20242026
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cs.LG2026

Beyond Activation Alignment:The Alignment-Diversity Tradeoff in Task-Aware LLM Quantization

Fei Wang, Chao Xue, Taoran Liu +3

Mixed-precision quantization (MPQ) has become a key technique for deploying large language models under stringent memory and compute constraints. We first identify a phenomenon tha…

cs.LG2026

Universally Empowering Zeroth-Order Optimization via Adaptive Layer-wise Sampling

Fei Wang, Li Shen, Liang Ding +3

Zeroth-Order optimization presents a promising memory-efficient paradigm for fine-tuning Large Language Models by relying solely on forward passes. However, its practical adoption…

cs.LG2025

ChartMaster: Advancing Chart-to-Code Generation with Real-World Charts and Chart Similarity Reinforcement Learning

Wentao Tan, Qiong Cao, Chao Xue +3

The chart-to-code generation task requires MLLMs to convert chart images into executable code. This task faces two main challenges: limited data diversity and the difficulty of mai…

cs.LG2024

Beyond Human Data: Aligning Multimodal Large Language Models by Iterative Self-Evolution

Wentao Tan, Qiong Cao, Yibing Zhan +2

Human preference alignment can greatly enhance Multimodal Large Language Models (MLLMs), but collecting high-quality preference data is costly. A promising solution is the self-evo…

cs.LG2024

Simultaneous Computation and Memory Efficient Zeroth-Order Optimizer for Fine-Tuning Large Language Models

Fei Wang, Li Shen, Liang Ding +3

Fine-tuning is powerful for adapting large language models to downstream tasks, but it often results in huge memory usages. A promising approach to mitigate this is using Zeroth-Or…