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Key Performance Indicators (KPI), which are essentially time series data, have been widely used to indicate the performance of telecom networks. Based on the given KPIs, a large set of anomaly detection algorithms have been deployed for…

机器学习 · 计算机科学 2023-05-26 Hamza Bodor , Thai V. Hoang , Zonghua Zhang

This paper studies the sparse identification problem of unknown sparse parameter vectors in stochastic dynamic systems. Firstly, a novel sparse identification algorithm is proposed, which can generate sparse estimates based on least squares…

最优化与控制 · 数学 2024-04-02 Ziming Wang , Xinghua Zhu

Automated detection of abnormalities in data has been studied in research area in recent years because of its diverse applications in practice including video surveillance, industrial damage detection and network intrusion detection.…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Hung Vu , Dinh Phung , Tu Dinh Nguyen , Anthony Trevors , Svetha Venkatesh

This paper proposes a strategy for the detection and triangulation of structural anomalies in solid media. The method revolves around the construction of sparse representations of the medium's dynamic response, obtained by learning…

计算机视觉与模式识别 · 计算机科学 2014-05-13 Jeffrey M. Druce , Jarvis D. Haupt , Stefano Gonella

Modern deep artificial neural networks have achieved great success in the domain of computer vision and beyond. However, their application to many real-world tasks is undermined by certain limitations, such as overconfident uncertainty…

机器学习 · 计算机科学 2022-05-05 Adrián Csiszárik , Beatrix Benkő , Dániel Varga

In this work, we for the first time present a method for detecting label errors in image datasets with semantic segmentation, i.e., pixel-wise class labels. Annotation acquisition for semantic segmentation datasets is time-consuming and…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Matthias Rottmann , Marco Reese

We propose a simple yet effective method for detecting anomalous instances on an attribute graph with label information of a small number of instances. Although with standard anomaly detection methods it is usually assumed that instances…

机器学习 · 统计学 2020-02-28 Atsutoshi Kumagai , Tomoharu Iwata , Yasuhiro Fujiwara

The problem of feature disentanglement has been explored in the literature, for the purpose of image and video processing and text analysis. State-of-the-art methods for disentangling feature representations rely on the presence of many…

机器学习 · 计算机科学 2017-11-28 Ershad Banijamali , Amir-Hossein Karimi , Alexander Wong , Ali Ghodsi

Despite strong empirical performance for image classification, deep neural networks are often regarded as ``black boxes'' and they are difficult to interpret. On the other hand, sparse convolutional models, which assume that a signal can be…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Xili Dai , Mingyang Li , Pengyuan Zhai , Shengbang Tong , Xingjian Gao , Shao-Lun Huang , Zhihui Zhu , Chong You , Yi Ma

The inclusion of Internet of Things (IoT) devices is growing rapidly in all application domains. Smart Farming supports devices connected, and with the support of Internet, cloud or edge computing infrastructure provide remote control of…

密码学与安全 · 计算机科学 2021-11-02 Mary Adkisson , Jeffrey C Kimmel , Maanak Gupta , Mahmoud Abdelsalam

Machine learning classification systems are susceptible to poor performance when trained with incorrect ground truth labels, even when data is well-curated by expert annotators. As machine learning becomes more widespread, it is…

机器学习 · 计算机科学 2026-01-16 Zan Chaudhry , Noam H. Rotenberg , Brian Caffo , Craig K. Jones , Haris I. Sair

Accurate segmentation of organelle instances from electron microscopy (EM) images plays an essential role in many neuroscience researches. However, practical scenarios usually suffer from high annotation costs, label scarcity, and large…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Dafei Qiu , Shan Xiong , Jiajin Yi , Jialin Peng

Deep learning methods for communications over unknown nonlinear channels have attracted considerable interest recently. In this paper, we consider semi-supervised learning methods, which are based on variational inference, for decoding…

信号处理 · 电气工程与系统科学 2023-09-22 David Burshtein , Eli Bery

Supervised classification algorithms are used to solve a growing number of real-life problems around the globe. Their performance is strictly connected with the quality of labels used in training. Unfortunately, acquiring good-quality…

机器学习 · 计算机科学 2024-07-08 Daniel Kałuża , Andrzej Janusz , Dominik Ślęzak

Anomaly detection (AD), separating anomalies from normal data, has many applications across domains, from security to healthcare. While most previous works were shown to be effective for cases with fully or partially labeled data, that…

机器学习 · 计算机科学 2022-08-08 Jinsung Yoon , Kihyuk Sohn , Chun-Liang Li , Sercan O. Arik , Chen-Yu Lee , Tomas Pfister

Sparse coding algorithm is an learning algorithm mainly for unsupervised feature for finding succinct, a little above high - level Representation of inputs, and it has successfully given a way for Deep learning. Our objective is to use High…

机器学习 · 计算机科学 2014-04-08 R. Vidya , Dr. G. M. Nasira , R. P. Jaia Priyankka

Anomaly detection on attributed networks aims to find the nodes whose behaviors are significantly different from other majority nodes. Generally, network data contains information about relationships between entities, and the anomaly is…

社会与信息网络 · 计算机科学 2024-01-09 Enbo He , Yitong Hao , Yue Zhang , Guisheng Yin , Lina Yao

Automatic anomaly detection is a major issue in various areas. Beyond mere detection, the identification of the origin of the problem that produced the anomaly is also essential. This paper introduces a general methodology that can assist…

机器学习 · 统计学 2014-09-17 Tsirizo Rabenoro , Jérôme Lacaille , Marie Cottrell , Fabrice Rossi

Anomaly activities such as robbery, explosion, accidents, etc. need immediate actions for preventing loss of human life and property in real world surveillance systems. Although the recent automation in surveillance systems are capable of…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Snehashis Majhi , Srijan Das , Francois Bremond , Ratnakar Dash , Pankaj Kumar Sa

Process anomaly detection is an important application of process mining for identifying deviations from the normal behavior of a process. Neural network-based methods have recently been applied to this task, learning directly from event…

机器学习 · 计算机科学 2026-04-02 Devashish Gaikwad , Wil M. P. van der Aalst , Gyunam Park