Results 1 to 10 of about 84,843 (251)

A novel subspace outlier detection method by entropy-based clustering algorithm [PDF]

open access: yesScientific Reports, 2023
Subspace outlier detection has emerged as a practical approach for outlier detection. Classical full space outlier detection methods become ineffective in high dimensional data due to the “curse of dimensionality”. Subspace outlier detection methods have
Zheng Zuo   +3 more
doaj   +2 more sources

Outlier detection algorithm based on k-nearest neighbors-local outlier factor

open access: yesJournal of Algorithms & Computational Technology, 2022
The main task of outlier detection is to detect data objects which have a different mechanism from the conventional data set. The existing outlier detection methods are mainly divided into two directions: local outliers and global outliers. Aiming at the
He Xu, Lin Zhang, Peng Li, Feng Zhu
doaj   +2 more sources

Outlier Detection in Mendelian Randomization [PDF]

open access: yesStatistics in Medicine
ABSTRACT Mendelian randomization (MR) uses genetic variants as instrumental variables to infer causal effects of exposures on an outcome. One key assumption of MR is that the genetic variants used as instrumental variables are independent of the outcome conditional on the risk factor and unobserved confounders.
Maximilian M. Mandl   +3 more
openaire   +5 more sources

Fluctuation-based outlier detection [PDF]

open access: yesScientific Reports, 2023
Outlier detection is an important topic in machine learning and has been used in a wide range of applications. Outliers are objects that are few in number and deviate from the majority of objects.
Xusheng Du   +4 more
doaj   +2 more sources

A Survey of Outlier Detection Methodologies [PDF]

open access: yesArtificial Intelligence Review, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Victoria Hodge   +2 more
exaly   +3 more sources

Progress in Outlier Detection Techniques: A Survey

open access: yesIEEE Access, 2019
Detecting outliers is a significant problem that has been studied in various research and application areas. Researchers continue to design robust schemes to provide solutions to detect outliers efficiently. In this survey, we present a comprehensive and
Hongzhi Wang   +2 more
doaj   +3 more sources

Locality and Consistency Based Sequential Ensemble Method for Outlier Detection [PDF]

open access: yesJisuanji kexue, 2022
Outlier detection has been widely used in many fields,such as network intrusion detection,credit card fraud detection,etc.The increase in data dimensions leads to many irrelevant and redundant features,which will obscure the relevant features and result ...
LIU Yi, MAO Ying-chi, CHENG Yang-kun, GAO Jian, WANG Long-bao
doaj   +1 more source

FairLOF: Fairness in Outlier Detection [PDF]

open access: yesData Science and Engineering, 2021
AbstractAn outlier detection method may be considered fair over specified sensitive attributes if the results of outlier detection are not skewed toward particular groups defined on such sensitive attributes. In this paper, we consider the task of fair outlier detection.
Deepak P 0001, Savitha Sam Abraham
openaire   +2 more sources

Unsupervised Feature Selection for Outlier Detection on Streaming Data to Enhance Network Security

open access: yesApplied Sciences, 2021
Over the past couple of years, machine learning methods—especially the outlier detection ones—have anchored in the cybersecurity field to detect network-based anomalies rooted in novel attack patterns.
Michael Heigl   +3 more
doaj   +1 more source

Interpretable Single-dimension Outlier Detection (ISOD): An Unsupervised Outlier Detection Method Based on Quantiles and Skewness Coefficients

open access: yesApplied Sciences, 2023
A crucial area of study in data mining is outlier detection, particularly in the areas of network security, credit card fraud detection, industrial flaw detection, etc.
Yuehua Huang   +4 more
doaj   +1 more source

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