Results 1 to 10 of about 109,015 (219)

Statistical Anomaly Detection for Train Fleets [PDF]

, 2012
We have developed a method for statistical anomaly detection which has been deployed in a tool for condition monitoring of train fleets. The tool is currently used by several railway operators over the world to inspect and visualize the occurrence of ...
Larsen, Stefan, Larsen, S., Sellin, Ola, Jan Ekman, Holst, Anders,, Bohlin, Markus, Bohlin, M., Markus Bohlin, Lindström, Björn, Ekman, J., Sellin, O., Lindström, B., Ola Sellin, Holst, Anders, Björn Lindström, Stefan Larsen, Ekman, Jan, Anders Holst   +17 more
core   +1 more source

Anomaly detection in surveillance videos

, 2019
The main task of this thesis is to review anomaly detection methods and then demonstrate the use of a state of the art approach to detect nudity as an anomaly in a surveillance video. The following contributions were made.
Aggrey, Eric Majuk
core  

Online anomaly detection with constant false alarm rate

, 2015
We propose a computationally highly scalable online anomaly detection algorithm for time series, which achieves - with no parameter tuning- a specified false alarm rate while minimizing the miss rate.
Ibrahim Delibalta, Ozkan, Fatih, Huseyin Ozkan, Ozkan, Huseyin, Fatih Ozkan, Delibalta, Ibrahim, Suleyman S. Kozat, KOZAT, SÜLEYMAN SERDAR   +7 more
core   +1 more source

JointNet: Multitask Learning Framework for Denoising and Detecting Anomalies in Hyperspectral Remote Sensing

Remote Sensing
One of the significant challenges with traditional single-task learning-based anomaly detection using noisy hyperspectral images (HSIs) is the loss of anomaly targets during denoising, especially when the noise and anomaly targets are similar. This issue
Yingzhao Shao, Shuhan Li, Pengfei Yang, Fei Cheng, Yueli Ding, Jianguo Sun   +5 more
doaj   +1 more source

Statistical and fuzzy approach for database security [PDF]

, 2007
A new type of database anomaly is described by addressing the concept of Cumulated Anomaly in this paper. Dubiety-Determining Model (DDM), which is a detection model basing on statistical and fuzzy set theories for Cumulated Anomaly, is proposed. DDM
Yi, J, Lü, K, Gang Lu, Kevin Lu, Junkai Yi, Lu, G   +5 more
core   +1 more source

Research on the Combined Detection of Magnetic Anomaly and Shaft‐Rate Magnetic Field Signals

IET Radar, Sonar & Navigation
Due to the stable propagation of magnetic signals in ocean and air, magnetic detection technology has become an effective means for nonacoustic detection.
Honglei Wang, Chunxu Jiang, Zhixiang Feng   +2 more
doaj   +1 more source

Subspace discovery for video anomaly detection

, 2010
PhDIn automated video surveillance anomaly detection is a challenging task. We address this task as a novelty detection problem where pattern description is limited and labelling information is available only for a small sample of normal instances.
Tziakos, Ioannis
core  

Machine Learning-based Anomaly Detection for Hydroelectric Power Plants [PDF]

, 2022
openScopo - Questo lavoro analizza come il rilevamento delle anomalie possa essere efficacemente applicato alla manutenzione predittiva delle centrali idroelettriche e valuta gli effetti degli SHAP values nell’aiutare l’utente a comprendere le cause dell’
FANAN, MATTIA
core  

Enhancing Time Series Anomaly Detection: A Knowledge Distillation Approach with Image Transformation

Sensors
Anomaly detection is critical in safety-sensitive fields, but faces challenges from scarce abnormal data and costly expert labeling. Time series anomaly detection is relatively challenging due to its reliance on sequential data, which imposes high ...
Haiwoong Park, Hyeryung Jang
doaj   +1 more source

SNAP Framework: Linked Prediction Based Anomaly Prevention With Suspicious Nodes on Social Network Graph [PDF]

Journal of Universal Computer Science
In previous studies, the focus has predominantly been on anomaly detection, with minimal attention given to anomaly prevention. However, anomaly prevention holds greater significance than anomaly detection.
Vahide Nida Kılıç, Esra Saraç Eşsiz
doaj   +3 more sources