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High false-positive rate is a long-standing challenge for anomaly detection algorithms, especially in high-stake applications. To identify the true anomalies, in practice, analysts or domain experts will be employed to investigate the top…

Machine Learning · Computer Science 2020-09-17 Daochen Zha , Kwei-Herng Lai , Mingyang Wan , Xia Hu

Supervised learning with large scale labeled datasets and deep layered models has made a paradigm shift in diverse areas in learning and recognition. However, this approach still suffers generalization issues under the presence of a domain…

Machine Learning · Statistics 2016-03-28 Ozan Sener , Hyun Oh Song , Ashutosh Saxena , Silvio Savarese

Unsupervised learning poses one of the most difficult challenges in computer vision today. The task has an immense practical value with many applications in artificial intelligence and emerging technologies, as large quantities of unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

We present a technique to improve the transferability of deep representations learned on small labeled datasets by introducing self-supervised tasks as auxiliary loss functions. While recent approaches for self-supervised learning have…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Jong-Chyi Su , Subhransu Maji , Bharath Hariharan

Traditionally, training neural networks to perform semantic segmentation required expensive human-made annotations. But more recently, advances in the field of unsupervised learning have made significant progress on this issue and towards…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Leon Sick , Dominik Engel , Pedro Hermosilla , Timo Ropinski

Reliable perception during fast motion maneuvers or in high dynamic range environments is crucial for robotic systems. Since event cameras are robust to these challenging conditions, they have great potential to increase the reliability of…

Computer Vision and Pattern Recognition · Computer Science 2022-02-04 Nico Messikommer , Daniel Gehrig , Mathias Gehrig , Davide Scaramuzza

Feature missing is a serious problem in many applications, which may lead to low quality of training data and further significantly degrade the learning performance. While feature acquisition usually involves special devices or complex…

Machine Learning · Computer Science 2018-06-06 Sheng-Jun Huang , Miao Xu , Ming-Kun Xie , Masashi Sugiyama , Gang Niu , Songcan Chen

Unsupervised aspect detection (UAD) aims at automatically extracting interpretable aspects and identifying aspect-specific segments (such as sentences) from online reviews. However, recent deep learning-based topic models, specifically…

Computation and Language · Computer Science 2021-01-01 Tian Shi , Liuqing Li , Ping Wang , Chandan K. Reddy

Motivated by our observation that motion information is the key to good anomaly detection performance in video, we propose a temporal augmented network to learn a motion-aware feature. This feature alone can achieve competitive performance…

Computer Vision and Pattern Recognition · Computer Science 2019-07-25 Yi Zhu , Shawn Newsam

Automated event detection has emerged as one of the fundamental practices to monitor the behavior of technical systems by means of sensor data. In the automotive industry, these methods are in high demand for tracing events in time series…

Machine Learning · Computer Science 2023-10-18 Bahareh Medghalchi , Andreas Vogel

Machine learning models are vulnerable to membership inference attack, which can be used to determine whether a given sample appears in the training data. Most existing methods assume the attacker has full access to the features of the…

Machine Learning · Computer Science 2025-12-24 Xurun Wang , Guangrui Liu , Xinjie Li , Haoyu He , Lin Yao , Zhongyun Hua , Weizhe Zhang

Pedestrian detection is a problem of considerable practical interest. Adding to the list of successful applications of deep learning methods to vision, we report state-of-the-art and competitive results on all major pedestrian datasets with…

Computer Vision and Pattern Recognition · Computer Science 2013-04-03 Pierre Sermanet , Koray Kavukcuoglu , Soumith Chintala , Yann LeCun

The primary goal of reinforcement learning is to develop decision-making policies that prioritize optimal performance, frequently without considering safety. In contrast, safe reinforcement learning seeks to reduce or avoid unsafe behavior.…

Machine Learning · Computer Science 2025-06-17 Zahra Shahrooei , Ali Baheri

Unsupervised Domain Adaptation (UDA), a branch of transfer learning where labels for target samples are unavailable, has been widely researched and developed in recent years with the help of adversarially trained models. Although existing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-31 Changwei Xu , Jianfei Yang , Haoran Tang , Han Zou , Cheng Lu , Tianshuo Zhang

Unsupervised graph anomaly detection is crucial for various practical applications as it aims to identify anomalies in a graph that exhibit rare patterns deviating significantly from the majority of nodes. Recent advancements have utilized…

Machine Learning · Computer Science 2023-12-12 Yuanchen Bei , Sheng Zhou , Qiaoyu Tan , Hao Xu , Hao Chen , Zhao Li , Jiajun Bu

In line with the development of Industry 4.0, surface defect detection/anomaly detection becomes a topical subject in the industry field. Improving efficiency as well as saving labor costs has steadily become a matter of great concern in…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Yajie Cui , Zhaoxiang Liu , Shiguo Lian

Automata learning is a successful tool for many application domains such as robotics and automatic verification. Typically, automata learning techniques operate in a supervised learning setting (active or passive) where they learn a finite…

Machine Learning · Computer Science 2025-08-25 Simon Lutz , Daniil Kaminskyi , Florian Wittbold , Simon Dierl , Falk Howar , Barbara König , Emmanuel Müller , Daniel Neider

Current supervised cross-domain image retrieval methods can achieve excellent performance. However, the cost of data collection and labeling imposes an intractable barrier to practical deployment in real applications. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Conghui Hu , Gim Hee Lee

Concept drift detection is a crucial task in data stream evolving environments. Most of state of the art approaches designed to tackle this problem monitor the loss of predictive models. However, this approach falls short in many real-world…

Machine Learning · Computer Science 2021-03-09 Vitor Cerqueira , Heitor Murilo Gomes , Albert Bifet , Luis Torgo

Sound event detection is a challenging task, especially for scenes with multiple simultaneous events. While event classification methods tend to be fairly accurate, event localization presents additional challenges, especially when large…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-12 Sandeep Kothinti , Keisuke Imoto , Debmalya Chakrabarty , Gregory Sell , Shinji Watanabe , Mounya Elhilali