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Semi-supervised learning provides a solution to reduce the dependency of machine learning on labeled data. As one of the efficient semi-supervised techniques, self-training (ST) has received increasing attention. Several advancements have…

机器学习 · 计算机科学 2024-04-22 Jifeng Guo , Zhulin Liu , Tong Zhang , C. L. Philip Chen

In this paper, we study fast training of adversarially robust models. From the analyses of the state-of-the-art defense method, i.e., the multi-step adversarial training, we hypothesize that the gradient magnitude links to the model…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Jianyu Wang , Haichao Zhang

Semi-supervised learning acts as an effective way to leverage massive unlabeled data. In this paper, we propose a novel training strategy, termed as Semi-supervised Contrastive Learning (SsCL), which combines the well-known contrastive loss…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Yuhang Zhang , Xiaopeng Zhang , Robert. C. Qiu , Jie Li , Haohang Xu , Qi Tian

Neural networks are vulnerable to adversarial attacks -- small visually imperceptible crafted noise which when added to the input drastically changes the output. The most effective method of defending against these adversarial attacks is to…

In semi-supervised domain adaptation, a few labeled samples per class in the target domain guide features of the remaining target samples to aggregate around them. However, the trained model cannot produce a highly discriminative feature…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Jichang Li , Guanbin Li , Yemin Shi , Yizhou Yu

Most existing few-shot learning (FSL) methods require a large amount of labeled data in meta-training, which is a major limit. To reduce the requirement of labels, a semi-supervised meta-training (SSMT) setting has been proposed for FSL,…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Xingping Dong , Tianran Ouyang , Shengcai Liao , Bo Du , Ling Shao

It is commonly believed that networks cannot be both accurate and robust, that gaining robustness means losing accuracy. It is also generally believed that, unless making networks larger, network architectural elements would otherwise…

机器学习 · 计算机科学 2021-07-13 Cihang Xie , Mingxing Tan , Boqing Gong , Alan Yuille , Quoc V. Le

Semi-supervised learning (SSL) has achieved significant progress by leveraging both labeled data and unlabeled data. Existing SSL methods overlook a common real-world scenario when labeled data is extremely scarce, potentially as limited as…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Hezhao Liu , Yang Lu , Mengke Li , Yiqun Zhang , Shreyank N Gowda , Chen Gong , Hanzi Wang

We introduce a challenging training scheme of conditional GANs, called open-set semi-supervised image generation, where the training dataset consists of two parts: (i) labeled data and (ii) unlabeled data with samples belonging to one of…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Kai Katsumata , Duc Minh Vo , Hideki Nakayama

Semi-supervised learning (SSL) has shown its effectiveness in learning effective 3D representation from a small amount of labelled data while utilizing large unlabelled data. Traditional semi-supervised approaches rely on the fundamental…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Sneha Paul , Zachary Patterson , Nizar Bouguila

Deep neural networks (DNNs) are incredibly brittle due to adversarial examples. To robustify DNNs, adversarial training was proposed, which requires large-scale but well-labeled data. However, it is quite expensive to annotate large-scale…

机器学习 · 计算机科学 2019-11-21 Jingfeng Zhang , Bo Han , Gang Niu , Tongliang Liu , Masashi Sugiyama

Unsupervised Domain Adaptation (UDA) methods aim to transfer knowledge from a labeled source domain to an unlabeled target domain. UDA has been extensively studied in the computer vision literature. Deep networks have been shown to be…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Shao-Yuan Lo , Vishal M. Patel

Domain adaptation is a potential method to train a powerful deep neural network, which can handle the absence of labeled data. More precisely, domain adaptation solving the limitation called dataset bias or domain shift when the training…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Thai-Vu Nguyen , Anh Nguyen , Nghia Le , Bac Le

In biomedical studies, it is often desirable to characterize the interactive mode of multiple disease outcomes beyond their marginal risk. Ising model is one of the most popular choices serving for this purpose. Nevertheless, learning…

统计方法学 · 统计学 2023-11-28 Daiqing Wu , Molei Liu

Domain adversarial training has been ubiquitous for achieving invariant representations and is used widely for various domain adaptation tasks. In recent times, methods converging to smooth optima have shown improved generalization for…

机器学习 · 计算机科学 2022-06-17 Harsh Rangwani , Sumukh K Aithal , Mayank Mishra , Arihant Jain , R. Venkatesh Babu

Recent work has shown that language models' refusal behavior is primarily encoded in a single direction in their latent space, making it vulnerable to targeted attacks. Although Latent Adversarial Training (LAT) attempts to improve…

计算与语言 · 计算机科学 2025-04-29 Alexandra Abbas , Nora Petrova , Helios Ael Lyons , Natalia Perez-Campanero

Adversarial training is a technique of improving model performance by involving adversarial examples in the training process. In this paper, we investigate adversarial training with multiple adversarial examples to benefit the relation…

计算与语言 · 计算机科学 2020-09-28 Peng Su , K. Vijay-Shanker

Although data is abundant, data labeling is expensive. Semi-supervised learning methods combine a few labeled samples with a large corpus of unlabeled data to effectively train models. This paper introduces our proposed method LiDAM, a…

机器学习 · 计算机科学 2020-11-25 Qun Liu , Matthew Shreve , Raja Bala

We integrate contrastive learning (CL) with adversarial learning to co-optimize the robustness and accuracy of code models. Different from existing works, we show that code obfuscation, a standard code transformation operation, provides…

机器学习 · 计算机科学 2023-03-07 Jinghan Jia , Shashank Srikant , Tamara Mitrovska , Chuang Gan , Shiyu Chang , Sijia Liu , Una-May O'Reilly

Recently, the self-supervised pre-training paradigm has shown great potential in leveraging large-scale unlabeled data to improve downstream task performance. However, increasing the scale of unlabeled pre-training data in real-world…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Yiqi Lin , Huabin Zheng , Huaping Zhong , Jinjing Zhu , Weijia Li , Conghui He , Lin Wang