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Discrete diffusion models are a powerful class of generative models with strong performance across many domains. For efficiency, however, discrete diffusion typically parameterizes the generative (reverse) process with factorized…

机器学习 · 统计学 2026-05-19 Grigory Bartosh , Teodora Pandeva , Sushrut Karmalkar , Javier Zazo

Learning and generalizing to novel concepts with few samples (Few-Shot Learning) is still an essential challenge to real-world applications. A principle way of achieving few-shot learning is to realize a model that can rapidly adapt to the…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Rongkai Ma , Pengfei Fang , Gil Avraham , Yan Zuo , Tianyu Zhu , Tom Drummond , Mehrtash Harandi

The main challenge that sets transfer learning apart from traditional supervised learning is the distribution shift, reflected as the shift between the source and target models and that between the marginal covariate distributions. In this…

机器学习 · 统计学 2024-04-02 Zelin He , Ying Sun , Jingyuan Liu , Runze Li

In object detection, data amount and cost are a trade-off, and collecting a large amount of data in a specific domain is labor intensive. Therefore, existing large-scale datasets are used for pre-training. However, conventional transfer…

计算机视觉与模式识别 · 计算机科学 2022-09-01 Yuzuru Nakamura , Yasunori Ishii , Yuki Maruyama , Takayoshi Yamashita

Diffusion models have recently emerged as effective generative frameworks for trajectory optimization, capable of producing high-quality and diverse solutions. However, training these models in a purely data-driven manner without explicit…

机器人学 · 计算机科学 2025-04-02 Anjian Li , Ryne Beeson

Diffusion models have shown great promise in text-guided image style transfer, but there is a trade-off between style transformation and content preservation due to their stochastic nature. Existing methods require computationally expensive…

计算机视觉与模式识别 · 计算机科学 2023-04-13 Serin Yang , Hyunmin Hwang , Jong Chul Ye

Modeling transformations between arbitrary data distributions is a fundamental scientific challenge, arising in applications like drug discovery and evolutionary simulation. While flow matching offers a natural framework for this task, its…

机器学习 · 计算机科学 2025-10-09 Shiye Su , Yuhui Zhang , Linqi Zhou , Rajesh Ranganath , Serena Yeung-Levy

We tackle the problem of sampling from intractable high-dimensional density functions, a fundamental task that often appears in machine learning and statistics. We extend recent sampling-based approaches that leverage controlled stochastic…

机器学习 · 计算机科学 2024-03-12 Dinghuai Zhang , Ricky T. Q. Chen , Cheng-Hao Liu , Aaron Courville , Yoshua Bengio

Test-time adaptation harnesses test inputs to improve the accuracy of a model trained on source data when tested on shifted target data. Existing methods update the source model by (re-)training on each target domain. While effective,…

机器学习 · 计算机科学 2023-06-22 Jin Gao , Jialing Zhang , Xihui Liu , Trevor Darrell , Evan Shelhamer , Dequan Wang

Generalized few-shot semantic segmentation (GFSS) aims to segment objects of both base and novel classes, using sufficient samples of base classes and few samples of novel classes. Representative GFSS approaches typically employ a two-phase…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Xinyue Chen , Miaojing Shi , Zijian Zhou , Lianghua He , Sophia Tsoka

Acquiring high-quality data for training discriminative models is a crucial yet challenging aspect of building effective predictive systems. In this paper, we present Diffusion Inversion, a simple yet effective method that leverages the…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Yongchao Zhou , Hshmat Sahak , Jimmy Ba

Diffusion-based generative modeling has been achieving state-of-the-art results on various generation tasks. Most diffusion models, however, are limited to a single-generation modeling. Can we generalize diffusion models with the ability of…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Changyou Chen , Han Ding , Bunyamin Sisman , Yi Xu , Ouye Xie , Benjamin Z. Yao , Son Dinh Tran , Belinda Zeng

Few-shot 3D point cloud semantic segmentation aims to segment novel categories using a minimal number of annotated support samples. While existing prototype-based methods have shown promise, they are constrained by two critical challenges:…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Qianguang Zhao , Dongli Wang , Yan Zhou , Jianxun Li , Richard Irampa

The major approaches of transfer learning in computer vision have tried to adapt the source domain to the target domain one-to-one. However, this scenario is difficult to apply to real applications such as video surveillance systems. As…

计算机视觉与模式识别 · 计算机科学 2020-03-04 Tetsuo Inoshita , Yuichi Nakatani , Katsuhiko Takahashi , Asuka Ishii , Gaku Nakano

The goal of few-shot learning is to learn a classifier that can recognize unseen classes from limited support data with labels. A common practice for this task is to train a model on the base set first and then transfer to novel classes…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Zhiqiang Shen , Zechun Liu , Jie Qin , Marios Savvides , Kwang-Ting Cheng

Metric-based few-shot fine-grained classification has shown promise due to its simplicity and efficiency. However, existing methods often overlook task-level special cases and struggle with accurate category description and irrelevant…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Ping Li , Hongbo Wang , Lei Lu

Diffusion models have emerged as powerful tools for generative modeling, demonstrating exceptional capability in capturing target data distributions from large datasets. However, fine-tuning these massive models for specific downstream…

机器学习 · 计算机科学 2025-09-01 Yinbin Han , Meisam Razaviyayn , Renyuan Xu

Few-shot learning addresses the challenge of learning how to address novel tasks given not just limited supervision but limited data as well. An attractive solution is synthetic data generation. However, most such methods are overly…

计算机视觉与模式识别 · 计算机科学 2022-01-05 Michalis Lazarou , Tania Stathaki , Yannis Avrithis

Few shot learning is an important problem in machine learning as large labelled datasets take considerable time and effort to assemble. Most few-shot learning algorithms suffer from one of two limitations- they either require the design of…

机器学习 · 计算机科学 2022-04-12 Shakti Kumar , Hussain Zaidi

Denosing diffusion model, as a generative model, has received a lot of attention in the field of image generation recently, thanks to its powerful generation capability. However, diffusion models have not yet received sufficient research in…

计算机视觉与模式识别 · 计算机科学 2023-04-12 ZiHan Cao , ShiQi Cao , Xiao Wu , JunMing Hou , Ran Ran , Liang-Jian Deng