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相关论文: Contrastive Predictive Coding for Anomaly Detectio…

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Segmenting unknown or anomalous object instances is a critical task in autonomous driving applications, and it is approached traditionally as a per-pixel classification problem. However, reasoning individually about each pixel without…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Shyam Nandan Rai , Fabio Cermelli , Barbara Caputo , Carlo Masone

Contrastive learning has become pivotal in unsupervised representation learning, with frameworks like Momentum Contrast (MoCo) effectively utilizing large negative sample sets to extract discriminative features. However, traditional…

机器学习 · 计算机科学 2025-01-29 Duy Hoang , Huy Ngo , Khoi Pham , Tri Nguyen , Gia Bao , Huy Phan

Anomaly detection in medical images is challenging due to limited annotations and a domain gap compared to natural images. Existing reconstruction methods often rely on frozen pre-trained encoders, which limits adaptation to domain-specific…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Luhu Li , Bowen Lin , Mukhtiar Khan , Shujun Fu

Neural networks have revolutionized various domains, exhibiting remarkable accuracy in tasks like natural language processing and computer vision. However, their vulnerability to slight alterations in input samples poses challenges,…

计算机视觉与模式识别 · 计算机科学 2023-11-15 Shashank Kotyan , Danilo Vasconcellos Vargas

Unsupervised learning has recently made exceptional progress because of the development of more effective contrastive learning methods. However, CNNs are prone to depend on low-level features that humans deem non-semantic. This dependency…

计算机视觉与模式识别 · 计算机科学 2022-01-04 Songwei Ge , Shlok Mishra , Haohan Wang , Chun-Liang Li , David Jacobs

Detecting lane markings in road scenes poses a challenge due to their intricate nature, which is susceptible to unfavorable conditions. While lane markings have strong shape priors, their visibility is easily compromised by lighting…

计算机视觉与模式识别 · 计算机科学 2024-08-21 Ali Zoljodi , Sadegh Abadijou , Mina Alibeigi , Masoud Daneshtalab

This work studies the relationship between Contrastive Learning and Domain Adaptation from a theoretical perspective. The two standard contrastive losses, NT-Xent loss (Self-supervised) and Supervised Contrastive loss, are related to the…

We introduce a novel approach to unsupervised and semi-supervised domain adaptation for semantic segmentation. Unlike many earlier methods that rely on adversarial learning for feature alignment, we leverage contrastive learning to bridge…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Weizhe Liu , David Ferstl , Samuel Schulter , Lukas Zebedin , Pascal Fua , Christian Leistner

Cross-domain graph anomaly detection (CD-GAD) describes the problem of detecting anomalous nodes in an unlabelled target graph using auxiliary, related source graphs with labelled anomalous and normal nodes. Although it presents a promising…

机器学习 · 计算机科学 2022-12-05 Qizhou Wang , Guansong Pang , Mahsa Salehi , Wray Buntine , Christopher Leckie

Recent studies give more attention to the anomaly detection (AD) methods that can leverage a handful of labeled anomalies along with abundant unlabeled data. These existing anomaly-informed AD methods rely on manually predefined score…

机器学习 · 计算机科学 2023-06-27 Minqi Jiang , Songqiao Han , Hailiang Huang

Segmenting object instances is a key task in machine perception, with safety-critical applications in robotics and autonomous driving. We introduce a novel approach to instance segmentation that jointly leverages measurements from multiple…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Alex Zihao Zhu , Vincent Casser , Reza Mahjourian , Henrik Kretzschmar , Sören Pirk

Current unsupervised anomaly detection approaches perform well on public datasets but struggle with specific anomaly types due to the domain gap between pre-trained feature extractors and target-specific domains. To tackle this issue, this…

计算机视觉与模式识别 · 计算机科学 2024-07-02 Yun Liang , Zhiguang Hu , Junjie Huang , Donglin Di , Anyang Su , Lei Fan

Advanced self-supervised visual representation learning methods rely on the instance discrimination (ID) pretext task. We point out that the ID task has an implicit semantic consistency (SC) assumption, which may not hold in unconstrained…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Yucheng Zhao , Guangting Wang , Chong Luo , Wenjun Zeng , Zheng-Jun Zha

Contrastive, self-supervised learning of object representations recently emerged as an attractive alternative to reconstruction-based training. Prior approaches focus on contrasting individual object representations (slots) against one…

计算机视觉与模式识别 · 计算机科学 2020-11-23 Sindy Löwe , Klaus Greff , Rico Jonschkowski , Alexey Dosovitskiy , Thomas Kipf

Several automatic approaches for objective music performance assessment (MPA) have been proposed in the past, however, existing systems are not yet capable of reliably predicting ratings with the same accuracy as professional judges. This…

声音 · 计算机科学 2021-08-16 Pavan Seshadri , Alexander Lerch

Anomaly detection is an important task for complex systems (e.g., industrial facilities, manufacturing, large-scale science experiments), where failures in a sub-system can lead to low yield, faulty products, or even damage to components.…

机器学习 · 计算机科学 2023-09-06 Ryan Humble , Zhe Zhang , Finn O'Shea , Eric Darve , Daniel Ratner

Recently, large vision and language models have shown their success when adapting them to many downstream tasks. In this paper, we present a unified framework named CLIP-ADA for Anomaly Detection by Adapting a pre-trained CLIP model. To…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Yuxuan Cai , Xinwei He , Dingkang Liang , Ao Tong , Xiang Bai

Recently, multi-class anomaly classification has garnered increasing attention. Previous methods directly cluster anomalies but often struggle due to the lack of anomaly-prior knowledge. Acquiring this knowledge faces two issues: the…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Ziming Huang , Xurui Li , Haotian Liu , Feng Xue , Yuzhe Wang , Yu Zhou

Efficiently utilizing discriminative features is crucial for convolutional neural networks to achieve remarkable performance in medical image segmentation and is also important for model generalization across multiple domains, where letting…

计算机视觉与模式识别 · 计算机科学 2022-05-16 Ran Gu , Jiangshan Lu , Jingyang Zhang , Wenhui Lei , Xiaofan Zhang , Guotai Wang , Shaoting Zhang

Contrastive learning has become a key component of self-supervised learning approaches for computer vision. By learning to embed two augmented versions of the same image close to each other and to push the embeddings of different images…

计算机视觉与模式识别 · 计算机科学 2020-12-07 Yannis Kalantidis , Mert Bulent Sariyildiz , Noe Pion , Philippe Weinzaepfel , Diane Larlus