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As acquiring manual labels on data could be costly, unsupervised domain adaptation (UDA), which transfers knowledge learned from a rich-label dataset to the unlabeled target dataset, is gaining increasing popularity. While extensive studies…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Wanqing Zhu , Jia-Li Yin , Bo-Hao Chen , Ximeng Liu

Backdoor (Trojan) attack is a common threat to deep neural networks, where samples from one or more source classes embedded with a backdoor trigger will be misclassified to adversarial target classes. Existing methods for detecting whether…

机器学习 · 计算机科学 2023-11-17 Zhen Xiang , Zidi Xiong , Bo Li

Unsupervised Domain Adaptation (UDA) aims at improving the generalization capability of a model trained on a source domain to perform well on a target domain for which no labeled data is available. In this paper, we consider the semantic…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Teo Spadotto , Marco Toldo , Umberto Michieli , Pietro Zanuttigh

Supervised deep learning requires massive labeled datasets, but obtaining annotations is not always easy or possible, especially for dense tasks like semantic segmentation. To overcome this issue, numerous works explore Unsupervised Domain…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Daniel Morales-Brotons , Grigorios Chrysos , Stratis Tzoumas , Volkan Cevher

Deep learning-based solutions for semantic segmentation suffer from significant performance degradation when tested on data with different characteristics than what was used during the training. Adapting the models using annotated data from…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Xingchen Zhao , Niluthpol Chowdhury Mithun , Abhinav Rajvanshi , Han-Pang Chiu , Supun Samarasekera

We propose Februus; a new idea to neutralize highly potent and insidious Trojan attacks on Deep Neural Network (DNN) systems at run-time. In Trojan attacks, an adversary activates a backdoor crafted in a deep neural network model using a…

密码学与安全 · 计算机科学 2020-12-17 Bao Gia Doan , Ehsan Abbasnejad , Damith C. Ranasinghe

Self-Supervised Learning (SSL) is a valuable and robust training methodology for contemporary Deep Neural Networks (DNNs), enabling unsupervised pretraining on a 'pretext task' that does not require ground-truth labels/annotation. This…

Self-Supervised Learning (SSL) has become a very active area of Deep Learning research where it is heavily used as a pre-training method for classification and other tasks. However, the rapid pace of advancements in this area comes at a…

机器学习 · 计算机科学 2022-07-19 Diane Wagner , Fabio Ferreira , Danny Stoll , Robin Tibor Schirrmeister , Samuel Müller , Frank Hutter

Recently, it has been shown that deep learning models are vulnerable to Trojan attacks, where an attacker can install a backdoor during training time to make the resultant model misidentify samples contaminated with a small trigger patch.…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Haripriya Harikumar , Vuong Le , Santu Rana , Sourangshu Bhattacharya , Sunil Gupta , Svetha Venkatesh

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

Self-Supervised Learning (SSL) has shown great promise in learning representations from unlabeled data. The power of learning representations without the need for human annotations has made SSL a widely used technique in real-world…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Aryan Satpathy , Nilaksh Singh , Dhruva Rajwade , Somesh Kumar

Recently, self-supervised learning (SSL) was shown to be vulnerable to patch-based data poisoning backdoor attacks. It was shown that an adversary can poison a small part of the unlabeled data so that when a victim trains an SSL model on…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Ajinkya Tejankar , Maziar Sanjabi , Qifan Wang , Sinong Wang , Hamed Firooz , Hamed Pirsiavash , Liang Tan

The globalized semiconductor supply chain has made Hardware Trojans (HT) a significant security threat to embedded systems, necessitating the design of efficient and adaptable detection mechanisms. Despite promising machine learning-based…

密码学与安全 · 计算机科学 2025-10-29 Zhixin Pan , Ziyu Shu , Linh Nguyen , Amberbir Alemayoh

Semi-supervised learning (SSL) provides a powerful framework for leveraging unlabeled data when labels are limited or expensive to obtain. SSL algorithms based on deep neural networks have recently proven successful on standard benchmark…

机器学习 · 计算机科学 2019-06-18 Avital Oliver , Augustus Odena , Colin Raffel , Ekin D. Cubuk , Ian J. Goodfellow

Self-supervised learning (SSL) methods have proven to be very successful in automatic speech recognition (ASR). These great improvements have been reported mostly based on highly curated datasets such as LibriSpeech for non-streaming…

声音 · 计算机科学 2022-05-19 Mostafa Karimi , Changliang Liu , Kenichi Kumatani , Yao Qian , Tianyu Wu , Jian Wu

In machine learning Trojan attacks, an adversary trains a corrupted model that obtains good performance on normal data but behaves maliciously on data samples with certain trigger patterns. Several approaches have been proposed to detect…

人工智能 · 计算机科学 2020-10-02 Xiaojun Xu , Qi Wang , Huichen Li , Nikita Borisov , Carl A. Gunter , Bo Li

Though unsupervised domain adaptation (UDA) has achieved very impressive progress recently, it remains a great challenge due to missing target annotations and the rich discrepancy between source and target distributions. We propose Spectral…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Jingyi Zhang , Jiaxing Huang , Zichen Tian , Shijian Lu

Various convolutional neural network (CNN) based concepts have been introduced for the prostate's automatic segmentation and its coarse subdivision into transition zone (TZ) and peripheral zone (PZ). However, when targeting a fine-grained…

图像与视频处理 · 电气工程与系统科学 2021-04-09 Anneke Meyer , Suhita Ghosh , Daniel Schindele , Martin Schostak , Sebastian Stober , Christian Hansen , Marko Rak

Self-supervised Learning (SSL) aims at learning representations of objects without relying on manual labeling. Recently, a number of SSL methods for graph representation learning have achieved performance comparable to SOTA semi-supervised…

机器学习 · 计算机科学 2021-08-25 Zekarias T. Kefato , Sarunas Girdzijauskas , Hannes Stärk

We propose CLEANN, the first end-to-end framework that enables online mitigation of Trojans for embedded Deep Neural Network (DNN) applications. A Trojan attack works by injecting a backdoor in the DNN while training; during inference, the…

机器学习 · 计算机科学 2020-09-08 Mojan Javaheripi , Mohammad Samragh , Gregory Fields , Tara Javidi , Farinaz Koushanfar