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Distillation addresses the slow sampling problem in diffusion models by creating models with smaller size or fewer steps that approximate the behavior of high-step teachers. In this work, we propose a reinforcement learning based…

机器学习 · 计算机科学 2025-12-30 Amirhossein Tighkhorshid , Zahra Dehghanian , Gholamali Aminian , Chengchun Shi , Hamid R. Rabiee

Data scarcity significantly complicates the continual learning problem, i.e., how a deep neural network learns in dynamic environments with very few samples. However, the latest progress of few-shot class incremental learning (FSCIL)…

机器学习 · 计算机科学 2025-02-13 M. Anwar Ma'sum , Mahardhika Pratama , Igor Skrjanc

Supervised contrastive learning (SCL) frameworks treat each class as independent and thus consider all classes to be equally important. This neglects the common scenario in which label hierarchy exists, where fine-grained classes under the…

机器学习 · 计算机科学 2024-02-02 Ruixue Lian , William A. Sethares , Junjie Hu

Guided or controlled data generation with diffusion models\blfootnote{Partial preliminary results of this work appeared in International Conference on Machine Learning 2025 \citep{li2025provable}.} has become a cornerstone of modern…

机器学习 · 统计学 2025-12-05 Yuchen Jiao , Yuxin Chen , Gen Li

Learning from feedback has been shown to enhance the alignment between text prompts and images in text-to-image diffusion models. However, due to the lack of focus in feedback content, especially regarding the object type and quantity,…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Xuexiang Niu , Jinping Tang , Lei Wang , Ge Zhu

Few-shot class-incremental learning (FSCIL) has addressed challenging real-world scenarios where unseen novel classes continually arrive with few samples. In these scenarios, it is required to develop a model that recognizes the novel…

机器学习 · 计算机科学 2022-06-23 Jaehoon Oh , Se-Young Yun

Collaborative learning (CL) enables multiple participants to jointly train machine learning (ML) models on decentralized data sources without raw data sharing. While the primary goal of CL is to maximize the expected accuracy gain for each…

机器学习 · 计算机科学 2025-10-02 Nurbek Tastan , Samuel Horvath , Karthik Nandakumar

Generative diffusion models (DM) have been extensively utilized in image super-resolution (ISR). Most of the existing methods adopt the denoising loss from DDPMs for model optimization. We posit that introducing reward feedback learning to…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Xiaopeng Sun , Qinwei Lin , Yu Gao , Yujie Zhong , Chengjian Feng , Dengjie Li , Zheng Zhao , Jie Hu , Lin Ma

Augmentation for dense prediction typically relies on either sample mixing or generative synthesis. Mixing improves robustness but misaligned masks yield soft label ambiguity. Diffusion synthesis increases apparent diversity but, when…

计算机视觉与模式识别 · 计算机科学 2025-11-06 Pengyu Jie , Wanquan Liu , Rui He , Yihui Wen , Deyu Meng , Chenqiang Gao

Few-Shot Class-Incremental Learning (FSCIL) models aim to incrementally learn new classes with scarce samples while preserving knowledge of old ones. Existing FSCIL methods usually fine-tune the entire backbone, leading to overfitting and…

机器学习 · 计算机科学 2024-07-18 Chenxi Liu , Zhenyi Wang , Tianyi Xiong , Ruibo Chen , Yihan Wu , Junfeng Guo , Heng Huang

Diffusion Models (DMs), as a leading class of generative models, offer key advantages for reinforcement learning (RL), including multi-modal expressiveness, stable training, and trajectory-level planning. This survey delivers a…

机器学习 · 计算机科学 2025-10-15 Changfu Xu , Jianxiong Guo , Yuzhu Liang , Haiyang Huang , Haodong Zou , Xi Zheng , Shui Yu , Xiaowen Chu , Jiannong Cao , Tian Wang

Diffusion models (DMs) are a powerful generative framework that have attracted significant attention in recent years. However, the high computational cost of training DMs limits their practical applications. In this paper, we start with a…

机器学习 · 计算机科学 2024-04-12 Tianshuo Xu , Peng Mi , Ruilin Wang , Yingcong Chen

Conditional diffusion models have achieved remarkable success in various generative tasks recently, but their training typically relies on large-scale datasets that inevitably contain imprecise information in conditional inputs. Such…

机器学习 · 计算机科学 2025-10-13 Dong-Dong Wu , Jiacheng Cui , Wei Wang , Zhiqiang Shen , Masashi Sugiyama

Few-shot class-incremental learning (FSCIL) has been a challenging problem as only a few training samples are accessible for each novel class in the new sessions. Finetuning the backbone or adjusting the classifier prototypes trained in the…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Yibo Yang , Haobo Yuan , Xiangtai Li , Zhouchen Lin , Philip Torr , Dacheng Tao

While achieving remarkable success for medical image segmentation, deep convolution neural networks (DCNNs) often fail to maintain their robustness when confronting test data with the novel distribution. To address such a drawback, the…

图像与视频处理 · 电气工程与系统科学 2022-05-09 Yuxin Kang , Hansheng Li , Xuan Zhao , Dongqing Hu , Feihong Liu , Lei Cui , Jun Feng , Lin Yang

Few-shot class-incremental learning (FSCIL) is designed to incrementally recognize novel classes with only few training samples after the (pre-)training on base classes with sufficient samples, which focuses on both base-class performance…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Yixiong Zou , Shanghang Zhang , Yuhua Li , Ruixuan Li

Class-incremental learning (CIL) is typically evaluated under predefined schedules with equal-sized tasks, leaving more realistic and complex cases unexplored. However, a practical CIL system should learns immediately when any number of new…

机器学习 · 计算机科学 2026-04-06 Zhiming Xu , Baile Xu , Jian Zhao , Furao Shen , Suorong Yang

In offline reinforcement learning (RL), the performance of the learned policy highly depends on the quality of offline datasets. However, in many cases, the offline dataset contains very limited optimal trajectories, which poses a challenge…

机器学习 · 计算机科学 2024-02-23 Guanghe Li , Yixiang Shan , Zhengbang Zhu , Ting Long , Weinan Zhang

Few-shot class-incremental learning (FSCIL) aims to adapt the model to new classes from very few data (5 samples) without forgetting the previously learned classes. Recent works in many-shot CIL (MSCIL) (using all available training data)…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Dipam Goswami , Bartłomiej Twardowski , Joost van de Weijer

Collaborative fairness stands as an essential element in federated learning to encourage client participation by equitably distributing rewards based on individual contributions. Existing methods primarily focus on adjusting gradient…

机器学习 · 计算机科学 2024-05-29 Zihui Wang , Zheng Wang , Lingjuan Lyu , Zhaopeng Peng , Zhicheng Yang , Chenglu Wen , Rongshan Yu , Cheng Wang , Xiaoliang Fan