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Shaping powerful LLMs to be beneficial and safe is central to AI alignment. We argue that post-training alignment is fundamentally a unified Preference Learning problem, involving two modalities: demonstrated preferences (e.g., Supervised…

人工智能 · 计算机科学 2025-09-30 FaQiang Qian , WeiKun Zhang , Ziliang Wang , Kang An , Xuhui Zheng , Liangjian Wen , Mengya Gao , Yong Dai , Yichao Wu

As a key technique in multi-modal processing, infrared and visible image fusion (IVIF) plays a crucial role in integrating complementary spectral information for visual enhancement and downstream vision tasks. Despite remarkable progress,…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Weijian Su , Songqian Zhang , Yuqi Han , Jian Zhuang , Yongdong Huang , Qiang Zhang

Fine-tuning large language models (LLMs) on human preferences, typically through reinforcement learning from human feedback (RLHF), has proven successful in enhancing their capabilities. However, ensuring the safety of LLMs during…

人工智能 · 计算机科学 2025-04-09 Wenxuan Zhang , Philip H. S. Torr , Mohamed Elhoseiny , Adel Bibi

Federated learning (FL) enables distributed training with private client data, but its convergence is hindered by system heterogeneity under realistic communication scenarios. Most FL schemes addressing system heterogeneity utilize global…

机器学习 · 计算机科学 2025-09-19 Keumseo Ryum , Jinu Gong , Joonhyuk Kang

Performance optimization is the art of continuous seeking a harmonious mapping between the application domain and hardware. Recent years have witnessed a surge of deep learning (DL) applications in industry. Conventional wisdom for…

分布式、并行与集群计算 · 计算机科学 2019-11-27 Guoping Long , Jun Yang , Wei Lin

Federated fine-tuning of Large Language Models (LLMs) is obstructed by a trilemma of challenges: protecting LLMs intellectual property (IP), ensuring client privacy, and mitigating performance loss on heterogeneous data. Existing methods…

机器学习 · 计算机科学 2026-04-22 Tao Fan , Guoqiang Ma , Yuanfeng Song , Lixin Fan , Kai Chen , Qiang Yang

Optimization problems characterized by both discrete and continuous variables are common across various disciplines, presenting unique challenges due to their complex solution landscapes and the difficulty of navigating mixed-variable…

最优化与控制 · 数学 2024-06-03 Haoyan Zhai , Qianli Hu , Jiangning Chen

Software fault localization remains challenging due to limited feature diversity and low precision in traditional methods. This paper proposes a novel approach that integrates multi-objective optimization with deep learning models to…

软件工程 · 计算机科学 2024-11-27 Xiaolei Hu , Dongcheng Li , W. Eric Wong , Ya Zou

The Learning Rate (LR) has a high impact on deep learning training performance. A common practice is to train a Deep Neural Network (DNN) multiple times with different LR policies to find the optimal LR policy, which has been widely…

机器学习 · 计算机科学 2024-10-11 Hongpeng Jin , Yanzhao Wu

Federated learning systems have been identified as an efficient approach to scaling distributed model training with a large amount of participants or data owners while guaranteeing data privacy. To apply the current most popular pre-trained…

分布式、并行与集群计算 · 计算机科学 2025-03-04 Qianli Liu , Zhaorui Zhang , Xin Yao , Benben Liu

Deploying Large Language Models (LLMs) on resource-constrained (or weak) devices presents significant challenges due to limited resources and heterogeneous data distribution. To address the data concern, it is necessary to fine-tune LLMs…

机器学习 · 计算机科学 2025-01-07 Zhiwei Yao , Yang Xu , Hongli Xu , Yunming Liao , Zuan Xie

Federated Learning has recently been utilized to collaboratively fine-tune foundation models across multiple clients. Notably, federated low-rank adaptation LoRA-based fine-tuning methods have recently gained attention, which allows clients…

机器学习 · 计算机科学 2025-06-17 Zikai Zhang , Ping Liu , Jiahao Xu , Rui Hu

Designing and deriving effective model-based reinforcement learning (MBRL) algorithms with a performance improvement guarantee is challenging, mainly attributed to the high coupling between model learning and policy optimization. Many prior…

机器学习 · 计算机科学 2023-10-25 Hai Zhang , Hang Yu , Junqiao Zhao , Di Zhang , Chang Huang , Hongtu Zhou , Xiao Zhang , Chen Ye

Post-training methods, especially Supervised Fine-Tuning (SFT) and Reinforcement Learning (RL), play an important role in improving large language models' (LLMs) complex reasoning abilities. However, the dominant two-stage pipeline (SFT…

机器学习 · 计算机科学 2025-12-22 Mingyu Su , Jian Guan , Yuxian Gu , Minlie Huang , Hongning Wang

Aligning large language models (LLMs) with human preferences is essential for safe and useful LLMs. Previous works mainly adopt reinforcement learning (RLHF) and direct preference optimization (DPO) with human feedback for alignment.…

计算与语言 · 计算机科学 2023-10-03 Tianci Xue , Ziqi Wang , Heng Ji

Federated Learning (FL) is a distributed machine learning strategy, developed for settings where training data is owned by distributed devices and cannot be shared. FL circumvents this constraint by carrying out model training in…

机器学习 · 计算机科学 2025-01-24 Maria Hartmann , Grégoire Danoy , Pascal Bouvry

Federated learning (FL) is a popular privacy-preserving paradigm that enables distributed clients to collaboratively train models with a central server while keeping raw data locally. In practice, distinct model architectures, varying data…

机器学习 · 计算机科学 2024-05-28 Yuting Ma , Lechao Cheng , Yaxiong Wang , Zhun Zhong , Xiaohua Xu , Meng Wang

Diffusion Language Models (dLLMs) have emerged as promising alternatives to Auto-Regressive (AR) models. While recent efforts have validated their pre-training potential and accelerated inference speeds, the post-training landscape for…

机器学习 · 计算机科学 2026-01-07 Ying Zhu , Jiaxin Wan , Xiaoran Liu , Siyang He , Qiqi Wang , Xu Guo , Tianyi Liang , Zengfeng Huang , Ziwei He , Xipeng Qiu

Large language models (LLMs) have been applied to a wide range of tasks, including text summarization, web navigation, and chatbots. They have benefitted from supervised fine-tuning (SFT) and reinforcement learning from human feedback…

计算与语言 · 计算机科学 2024-08-07 Ryan Aponte , Ryan A. Rossi , Shunan Guo , Franck Dernoncourt , Tong Yu , Xiang Chen , Subrata Mitra , Nedim Lipka

VLMs have broad potential in privacy-sensitive domains such as healthcare and finance, yet strict data-sharing constraints render centralized training infeasible. FL mitigates this issue by enabling decentralized training, but practical…

人工智能 · 计算机科学 2026-03-06 Shule Lu , Yujing Wang , Hainan Zhang , Xiaoshan Yang , Hongwei Zheng , Yongxin Tong , Changsheng Xu , Zhiming Zheng