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Differential privacy (DP) has become the standard for private data analysis. Certain machine learning applications only require privacy protection for specific protected attributes. Using naive variants of differential privacy in such use…

密码学与安全 · 计算机科学 2025-06-25 Saeed Mahloujifar , Chuan Guo , G. Edward Suh , Kamalika Chaudhuri

Current subject-driven image generation methods encounter significant challenges in person-centric image generation. The reason is that they learn the semantic scene and person generation by fine-tuning a common pre-trained diffusion, which…

计算机视觉与模式识别 · 计算机科学 2024-05-06 Yibin Wang , Weizhong Zhang , Jianwei Zheng , Cheng Jin

In an effort to further advance semi-supervised generative and classification tasks, we propose a simple yet effective training strategy called dual pseudo training (DPT), built upon strong semi-supervised learners and diffusion models. DPT…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Zebin You , Yong Zhong , Fan Bao , Jiacheng Sun , Chongxuan Li , Jun Zhu

Human beings can recognize new objects with only a few labeled examples, however, few-shot learning remains a challenging problem for machine learning systems. Most previous algorithms in few-shot learning only utilize spatial information…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Xiangyu Chen , Guanghui Wang

Training generative models with differential privacy (DP) typically involves injecting noise into gradient updates or adapting the discriminator's training procedure. As a result, such approaches often struggle with hyper-parameter tuning…

机器学习 · 计算机科学 2024-10-29 Kristjan Greenewald , Yuancheng Yu , Hao Wang , Kai Xu

Advances in generative models have transformed the field of synthetic image generation for privacy-preserving data synthesis (PPDS). However, the field lacks a comprehensive survey and comparison of synthetic image generation methods across…

密码学与安全 · 计算机科学 2025-06-27 Yunsung Chung , Yunbei Zhang , Nassir Marrouche , Jihun Hamm

Synthetic data is widely adopted in embedding models to ensure diversity in training data distributions across dimensions such as difficulty, length, and language. However, existing prompt-based synthesis methods struggle to capture…

计算与语言 · 计算机科学 2025-12-05 Haoran Li , Zhiming Su , Junyan Yao , Enwei Zhang , Yang Ji , Yan Chen , Kan Zhou , Chao Feng , Jiao Ran

Diferentially private (DP) synthetic datasets are a powerful approach for training machine learning models while respecting the privacy of individual data providers. The effect of DP on the fairness of the resulting trained models is not…

Treating class with a single center may hardly capture data distribution complexities. Using multiple sub-centers is an alternative way to address this problem. However, highly correlated sub-classes, the classifier's parameters grow…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Zhemin Zhang , Xun Gong

Differential privacy (DP) is a popular mechanism for training machine learning models with bounded leakage about the presence of specific points in the training data. The cost of differential privacy is a reduction in the model's accuracy.…

机器学习 · 计算机科学 2019-10-29 Eugene Bagdasaryan , Vitaly Shmatikov

Unsupervised pre-training is a common step in developing computer vision models and large language models. In this setting, the absence of labels requires the use of similarity-based loss functions, such as contrastive loss, that favor…

机器学习 · 计算机科学 2025-02-21 Weiwei Kong , Andrés Muñoz Medina , Mónica Ribero

Synthetic datasets are widely used for training urban scene recognition models, but even highly realistic renderings show a noticeable gap to real imagery. This gap is particularly pronounced when adapting to a specific target domain, such…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Denis Zavadski , Damjan Kalšan , Tim Küchler , Haebom Lee , Stefan Roth , Carsten Rother

Survival analysis or time-to-event analysis aims to model and predict the time it takes for an event of interest to happen in a population or an individual. In the medical context this event might be the time of dying, metastasis,…

机器学习 · 计算机科学 2022-02-09 Shadi Rahimian , Raouf Kerkouche , Ina Kurth , Mario Fritz

The annotation scarcity of medical image segmentation poses challenges in collecting sufficient training data for deep learning models. Specifically, models trained on limited data may not generalize well to other unseen data domains,…

图像与视频处理 · 电气工程与系统科学 2023-07-19 Heng Li , Haojin Li , Wei Zhao , Huazhu Fu , Xiuyun Su , Yan Hu , Jiang Liu

Many machine learning models perform well when making predictions within the training data range, but often struggle when required to extrapolate beyond it. Symbolic regression (SR) using genetic programming (GP) can generate flexible…

机器学习 · 计算机科学 2025-12-01 Fitria Wulandari Ramlan , Colm O'Riordan , Gabriel Kronberger , James McDermott

Synthetic data is an increasingly popular tool for training deep learning models, especially in computer vision but also in other areas. In this work, we attempt to provide a comprehensive survey of the various directions in the development…

机器学习 · 计算机科学 2019-09-26 Sergey I. Nikolenko

Recent advances in dataset distillation have led to solutions in two main directions. The conventional batch-to-batch matching mechanism is ideal for small-scale datasets and includes bi-level optimization methods on models and syntheses,…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Zhiqiang Shen , Ammar Sherif , Zeyuan Yin , Shitong Shao

Computationally expensive training strategies make self-supervised learning (SSL) impractical for resource constrained industrial settings. Techniques like knowledge distillation (KD), dynamic computation (DC), and pruning are often used to…

Image-to-image translation has been revolutionized with GAN-based methods. However, existing methods lack the ability to preserve the identity of the source domain. As a result, synthesized images can often over-adapt to the reference…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Mu Cai , Hong Zhang , Huijuan Huang , Qichuan Geng , Yixuan Li , Gao Huang

Synthetic data provide low-cost, accurately annotated samples for geometry-sensitive vision tasks, but appearance and imaging differences between synthetic and real domains cause severe domain shift and degrade downstream performance.…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Chuanhai Zang , Jiabao Hu , XW Song