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Anomaly detection has been a challenging task given high-dimensional multivariate time series data generated by networked sensors and actuators in Cyber-Physical Systems (CPS). Besides the highly nonlinear, complex, and dynamic natures of…

机器学习 · 计算机科学 2021-08-31 Kai Zhang , Yushan Jiang , Lee Seversky , Chengtao Xu , Dahai Liu , Houbing Song

Video anomaly detection (VAD) is crucial for video analysis and surveillance in computer vision. However, existing VAD models rely on learned normal patterns, which makes them difficult to apply to diverse environments. Consequently, users…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Sunghyun Ahn , Youngwan Jo , Kijung Lee , Sein Kwon , Inpyo Hong , Sanghyun Park

Video anomaly detection (VAD) has long been studied as a crucial problem in public security and crime prevention. In recent years, weakly-supervised VAD (WVAD) have attracted considerable attention due to their easy annotation process and…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Satoshi Hashimoto , Tatsuya Konishi , Tomoya Kaichi , Kazunori Matsumoto , Mori Kurokawa

Video Anomaly Detection (VAD) has been extensively studied under the settings of One-Class Classification (OCC) and Weakly-Supervised learning (WS), which however both require laborious human-annotated normal/abnormal labels. In this paper,…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Yongwei Nie , Hao Huang , Chengjiang Long , Qing Zhang , Pradipta Maji , Hongmin Cai

While inferring common actor states (such as position or velocity) is an important and well-explored task of the perception system aboard a self-driving vehicle (SDV), it may not always provide sufficient information to the SDV. This is…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Meng Fan , Craig Bidstrup , Zhaoen Su , Jason Owens , Gary Yang , Nemanja Djuric

Promptly discovering unknown network attacks is critical for reducing the risk of major loss imposed on system or equipment. This paper aims to develop an open-set intrusion detection model to classify known attacks as well as inferring…

密码学与安全 · 计算机科学 2024-03-08 Zhiyin Qiu , Ding Zhou , Yahui Zhai , Bo Liu , Lei He , Jiuxin Cao

Anomaly detection is defined as the problem of finding data points that do not follow the patterns of the majority. Among the various proposed methods for solving this problem, classification-based methods, including one-class Support…

最优化与控制 · 数学 2023-12-05 Amir Hossein Noormohammadia , Seyed Ali MirHassania , Farnaz Hooshmand Khaligh

Autonomous agents such as cars, robots and drones need to precisely localize themselves in diverse environments, including in GPS-denied indoor environments. One approach for precise localization is visual place recognition (VPR), which…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Ni Wang , Zihan You , Emre Neftci , Thorben Schoepe

Video anomaly detection is often seen as one-class classification (OCC) problem due to the limited availability of anomaly examples. Typically, to tackle this problem, an autoencoder (AE) is trained to reconstruct the input with training…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Marcella Astrid , Muhammad Zaigham Zaheer , Jae-Yeong Lee , Seung-Ik Lee

Safe overtaking, especially in a bidirectional mixed-traffic setting, remains a key challenge for Connected Autonomous Vehicles (CAVs). The presence of human-driven vehicles (HDVs), behavior unpredictability, and blind spots resulting from…

机器人学 · 计算机科学 2023-11-16 Faizan M. Tariq , Nilesh Suriyarachchi , Christos Mavridis , John S. Baras

Event-based vision, characterized by low redundancy, focus on dynamic motion, and inherent privacy-preserving properties, naturally fits the demands of video anomaly detection (VAD). However, the absence of dedicated event-stream anomaly…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Peng Wu , Yuting Yan , Guansong Pang , Yujia Sun , Qingsen Yan , Peng Wang , Yanning Zhang

We present a deep learning based approach to containerized application runtime stability analysis, and an intelligent publishing algorithm that can dynamically adjust the depth of process-level forensics published to a backend incident…

密码学与安全 · 计算机科学 2021-04-28 Prakhar Sharma , Phillip Porras , Steven Cheung , James Carpenter , Vinod Yegneswaran

Road traffic accidents, especially vehicle pedestrian collisions in crosswalk, globally pose a severe threat to human lives and have become a leading cause of premature deaths. In order to protect such vulnerable road users from collisions,…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Byeongjoon Noh , Hwasoo Yeo

We present a refined version of the Anomaly Awareness framework for enhancing unsupervised anomaly detection. Our approach introduces minimal supervision into Variational Autoencoders (VAEs) through a two-stage training strategy: the model…

高能物理 - 唯象学 · 物理学 2025-04-17 Adam Banda , Charanjit K. Khosa , Veronica Sanz

In the evolving landscape of autonomous vehicles, ensuring robust in-vehicle network (IVN) security is paramount. This paper introduces an advanced intrusion detection system (IDS) called KD-XVAE that uses a Variational Autoencoder…

密码学与安全 · 计算机科学 2024-10-16 Muhammet Anil Yagiz , Pedram MohajerAnsari , Mert D. Pese , Polat Goktas

This study develops a real-time framework for estimating the risk of near-misses by using high-fidelity two-dimensional (2D) risk indicator time-to-collision (TTC), which is calculated from high-resolution data collected by autonomous…

应用统计 · 统计学 2024-10-16 Mohammad Anis , Sixu Li , Srinivas R. Geedipally , Yang Zhou , Dominique Lord

Computer vision has evolved in the last decade as a key technology for numerous applications replacing human supervision. In this paper, we present a survey on relevant visual surveillance related researches for anomaly detection in public…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy

In this paper, we demonstrate the potential of applying Variational Autoencoder (VAE) [10] for anomaly detection in skin disease images. VAE is a class of deep generative models which is trained by maximizing the evidence lower bound of…

机器学习 · 计算机科学 2018-07-26 Yuchen Lu , Peng Xu

We propose one-class support measure machines (OCSMMs) for group anomaly detection which aims at recognizing anomalous aggregate behaviors of data points. The OCSMMs generalize well-known one-class support vector machines (OCSVMs) to a…

机器学习 · 计算机科学 2014-08-12 Krikamol Muandet , Bernhard Schoelkopf

We propose one-class support measure machines (OCSMMs) for group anomaly detection which aims at recognizing anomalous aggregate behaviors of data points. The OCSMMs generalize well-known one-class support vector machines (OCSVMs) to a…

机器学习 · 统计学 2013-06-04 Krikamol Muandet , Bernhard Schölkopf