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Timely detection of abrupt anomalies is crucial for real-time monitoring and security of modern systems producing high-dimensional data. With this goal, we propose effective and scalable algorithms. Proposed algorithms are nonparametric as…

机器学习 · 计算机科学 2020-02-19 Mehmet Necip Kurt , Yasin Yilmaz , Xiaodong Wang

Methods for anomaly detection of new physics processes are often limited to low-dimensional spaces due to the difficulty of learning high-dimensional probability densities. Particularly at the constituent level, incorporating desirable…

高能物理 - 唯象学 · 物理学 2024-03-06 Vinicius Mikuni , Benjamin Nachman

The vast majority of uncertainty quantification methods for deep object detectors such as variational inference are based on the network output. Here, we study gradient-based epistemic uncertainty metrics for deep object detectors to obtain…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Tobias Riedlinger , Matthias Rottmann , Marius Schubert , Hanno Gottschalk

Obstacle Detection is a central problem for any robotic system, and critical for autonomous systems that travel at high speeds in unpredictable environment. This is often achieved through scene depth estimation, by various means. When fast…

机器人学 · 计算机科学 2016-07-22 Michele Mancini , Gabriele Costante , Paolo Valigi , Thomas A. Ciarfuglia

The literature shows outstanding capabilities for CNNs in event recognition in images. However, fewer attempts are made to analyze the potential causes behind the decisions of the models and exploring whether the predictions are based on…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Imran Khan , Kashif Ahmad , Namra Gul , Talhat Khan , Nasir Ahmad , Ala Al-Fuqaha

Robots can rapidly acquire new skills from demonstrations. However, during generalisation of skills or transitioning across fundamentally different skills, it is unclear whether the robot has the necessary knowledge to perform the task.…

Despite extensive research on adversarial training strategies to improve robustness, the decisions of even the most robust deep learning models can still be quite sensitive to imperceptible perturbations, creating serious risks when…

机器学习 · 计算机科学 2024-11-04 Jonas Ngnawé , Sabyasachi Sahoo , Yann Pequignot , Frédéric Precioso , Christian Gagné

While model-based reinforcement learning (MBRL) improves sample efficiency by learning world models from raw observations, existing methods struggle to generalize across structurally similar scenes and remain vulnerable to spurious…

机器学习 · 计算机科学 2026-01-28 Zhao-Han Peng , Shaohui Li , Zhi Li , Shulan Ruan , Yu Liu , You He

Current object detectors excel at entity localization and classification, yet exhibit inherent limitations in event recognition capabilities. This deficiency arises from their architecture's emphasis on discrete object identification rather…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Yuhui Zeng , Haoxiang Wu , Wenjie Nie , Xiawu Zheng , Guangyao Chen , Yunhang Shen , Jun Peng , Yonghong Tian , Rongrong Ji

Multi-step manipulation tasks where robots interact with their environment and must apply process forces based on the perceived situation remain challenging to learn and prone to execution errors. Accurately simulating these tasks is also…

机器人学 · 计算机科学 2025-05-08 Christoph Willibald , Dongheui Lee

Using supervised machine learning approaches to recognize human activities from on-body wearable accelerometers generally requires a large amount of labelled data. When ground truth information is not available, too expensive, time…

机器学习 · 统计学 2013-12-30 Dorra Trabelsi , Samer Mohammed , Faicel Chamroukhi , Latifa Oukhellou , Yacine Amirat

We present a machine learning based approach for real-time monitoring of particle detectors. The proposed strategy evaluates the compatibility between incoming batches of experimental data and a reference sample representing the data…

高能物理 - 实验 · 物理学 2023-03-13 Gaia Grosso , Nicolò Lai , Marco Letizia , Jacopo Pazzini , Marco Rando , Andrea Wulzer , Marco Zanetti

We propose a method which can detect events in videos by modeling the change in appearance of the event participants over time. This method makes it possible to detect events which are characterized not by motion, but by the changing state…

计算机视觉与模式识别 · 计算机科学 2013-06-21 Daniel Paul Barrett , Jeffrey Mark Siskind

In this paper we present novel methodology for automatic anomaly and switch event filtering to improve load estimation in power grid systems. By leveraging unsupervised methods with supervised optimization, our approach prioritizes…

机器学习 · 计算机科学 2024-10-24 Roel Bouman , Linda Schmeitz , Luco Buise , Jacco Heres , Yuliya Shapovalova , Tom Heskes

In this paper, we introduce a probabilistic approach to risk assessment of robot systems by focusing on the impact of uncertainties. While various approaches to identifying systematic hazards (e.g., bugs, design flaws, etc.) can be found in…

机器人学 · 计算机科学 2024-10-28 Woo-Jeong Baek , Tom P. Huck , Joschka Haas , Jonas Lewandrowski , Tamim Asfour , Torsten Kröger

In order to perform autonomous sequential manipulation tasks, perception in cluttered scenes remains a critical challenge for robots. In this paper, we propose a probabilistic approach for robust sequential scene estimation and manipulation…

机器人学 · 计算机科学 2017-03-23 Zhiqiang Sui , Zheming Zhou , Zhen Zeng , Odest Chadwicke Jenkins

The expansion in technology and attainability of a large number of sensors has led to a huge amount of real-time streaming data. The real-time data in the electrical distribution system is collected through distribution-level phasor…

系统与控制 · 电气工程与系统科学 2023-11-07 Divyanshi Dwivedi , Pradeep Kumar Yemula , Mayukha Pal

Industry 4.0 aims to optimize the manufacturing environment by leveraging new technological advances, such as new sensing capabilities and artificial intelligence. The DRAEM technique has shown state-of-the-art performance for unsupervised…

计算机视觉与模式识别 · 计算机科学 2022-12-20 Jože M. Rožanec , Patrik Zajec , Spyros Theodoropoulos , Erik Koehorst , Blaž Fortuna , Dunja Mladenić

This paper studies the synthesis of an active perception policy that maximizes the information leakage of the initial state in a stochastic system modeled as a hidden Markov model (HMM). Specifically, the emission function of the HMM is…

系统与控制 · 电气工程与系统科学 2024-09-26 Chongyang Shi , Shuo Han , Michael Dorothy , Jie Fu

Event-based vision has been rapidly growing in recent years justified by the unique characteristics it presents such as its high temporal resolutions (~1us), high dynamic range (>120dB), and output latency of only a few microseconds. This…

计算机视觉与模式识别 · 计算机科学 2023-01-03 Zaid El-Shair , Samir Rawashdeh