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Currently, sample-specific backdoor attacks (SSBAs) are the most advanced and malicious methods since they can easily circumvent most of the current backdoor defenses. In this paper, we reveal that SSBAs are not sufficiently stealthy due to…

密码学与安全 · 计算机科学 2025-03-17 Mingyan Zhu , Yiming Li , Junfeng Guo , Tao Wei , Shu-Tao Xia , Zhan Qin

During recent years, active learning has evolved into a popular paradigm for utilizing user's feedback to improve accuracy of learning algorithms. Active learning works by selecting the most informative sample among unlabeled data and…

机器学习 · 计算机科学 2016-11-17 Alireza Ghasemi , Hamid R. Rabiee , Mohsen Fadaee , Mohammad T. Manzuri , Mohammad H. Rohban

Open-set active learning (OSAL) aims to identify informative samples for annotation when unlabeled data may contain previously unseen classes-a common challenge in safety-critical and open-world scenarios. Existing approaches typically rely…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Chen-Chen Zong , Yu-Qi Chi , Xie-Yang Wang , Yan Cui , Sheng-Jun Huang

Active Learning (AL) and Semi-supervised Learning are two techniques that have been studied to reduce the high cost of deep learning by using a small amount of labeled data and a large amount of unlabeled data. To improve the accuracy of…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Jaeseung Lim , Jongkeun Na , Nojun Kwak

Convolutional Neural Networks (CNNs) have proven to be state-of-the-art models for supervised computer vision tasks, such as image classification. However, large labeled data sets are generally needed for the training and validation of such…

机器学习 · 计算机科学 2020-10-28 Patrick Hemmer , Niklas Kühl , Jakob Schöffer

Active learning (AL) aims to improve model performance within a fixed labeling budget by choosing the most informative data points to label. Existing AL focuses on the single-domain setting, where all data come from the same domain (e.g.,…

机器学习 · 计算机科学 2024-02-12 Guang-Yuan Hao , Hengguan Huang , Haotian Wang , Jie Gao , Hao Wang

Deep neural networks have been demonstrated to be vulnerable to backdoor attacks. Specifically, by injecting a small number of maliciously constructed inputs into the training set, an adversary is able to plant a backdoor into the trained…

机器学习 · 统计学 2019-12-10 Alexander Turner , Dimitris Tsipras , Aleksander Madry

When we can not assume a large amount of annotated data , active learning is a good strategy. It consists in learning a model on a small amount of annotated data (annotation budget) and in choosing the best set of points to annotate in…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Umang Aggarwal , Adrian Popescu , Céline Hudelot

Labeling data can be an expensive task as it is usually performed manually by domain experts. This is cumbersome for deep learning, as it is dependent on large labeled datasets. Active learning (AL) is a paradigm that aims to reduce…

计算与语言 · 计算机科学 2021-11-05 Pieter Floris Jacobs , Gideon Maillette de Buy Wenniger , Marco Wiering , Lambert Schomaker

Training deep object detectors demands expensive bounding box annotation. Active learning (AL) is a promising technique to alleviate the annotation burden. Performing AL at box-level for object detection, i.e., selecting the most…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Jingyi Liao , Xun Xu , Chuan-Sheng Foo , Lile Cai

Active Learning (AL) has been a powerful paradigm for improving model efficiency and performance by selecting the most informative data points for labeling and training. In recent active learning frameworks, Large Language Models (LLMs)…

As deep learning continues to evolve, the need for data efficiency becomes increasingly important. Considering labeling large datasets is both time-consuming and expensive, active learning (AL) provides a promising solution to this…

机器学习 · 计算机科学 2025-05-21 Yifeng Wang , Xueying Zhan , Siyu Huang

Active Learning (AL) is a machine learning technique where the model selectively queries the most informative data points for labeling by human experts. Integrating AL with crowdsourcing leverages crowd diversity to enhance data labeling…

密码学与安全 · 计算机科学 2025-03-04 Shaojie Hou , Yuandou Wang , Zhiming Zhao

Safe active learning (AL) is a sequential scheme for learning unknown systems while respecting safety constraints during data acquisition. Existing methods often rely on Gaussian processes (GPs) to model the task and safety constraints,…

机器学习 · 计算机科学 2026-04-07 Cen-You Li , Marc Toussaint , Barbara Rakitsch , Christoph Zimmer

Continual learning algorithms are typically exposed to untrusted sources that contain training data inserted by adversaries and bad actors. An adversary can insert a small number of poisoned samples, such as mislabeled samples from…

机器学习 · 计算机科学 2023-11-21 Huayu Li , Gregory Ditzler

Machine Learning (ML) is widely used to automatically extract meaningful information from Electronic Health Records (EHR) to support operational, clinical, and financial decision-making. However, ML models require a large number of…

Two widely used techniques for training supervised machine learning models on small datasets are Active Learning and Transfer Learning. The former helps to optimally use a limited budget to label new data. The latter uses large pre-trained…

机器学习 · 计算机科学 2021-01-28 Nicolas M. Müller , Konstantin Böttinger

Transfer learning (TL) has been widely used in electroencephalogram (EEG)-based brain-computer interfaces (BCIs) for reducing calibration efforts. However, backdoor attacks could be introduced through TL. In such attacks, an attacker embeds…

人机交互 · 计算机科学 2024-12-16 X. Jiang , L. Meng , S. Li , D. Wu

Active learning (AL) combines data labeling and model training to minimize the labeling cost by prioritizing the selection of high value data that can best improve model performance. In pool-based active learning, accessible unlabeled data…

机器学习 · 计算机科学 2020-07-21 Mingfei Gao , Zizhao Zhang , Guo Yu , Sercan O. Arik , Larry S. Davis , Tomas Pfister

Machine unlearning has emerged as a key component in ensuring ``Right to be Forgotten'', enabling the removal of specific data points from trained models. However, even when the unlearning is performed without poisoning the forget-set…

密码学与安全 · 计算机科学 2025-06-17 Marco Arazzi , Antonino Nocera , Vinod P