Results 21 to 30 of about 580,024 (270)

COMPARISONS BETWEEN ROBUST REGRESSION APPROACHES IN THE PRESENCE OF OUTLIERS AND HIGH LEVERAGE POINTS

open access: yesBarekeng, 2022
The study aimed to compare a few robust approaches in linear regression in the presence of outlier and high leverage points. Ordinary least square (OLS) estimation of parameters is the most basic approach practiced widely in regression analysis. However,
Anwar Fitrianto, Sim Hui Xin
doaj   +1 more source

On-line detection algorithm of ore grade change in grinding grading system

open access: yesOpen Physics, 2020
In process industry control, process data is critical for both control and fault diagnosis. Timely detection of outliers and mutation point in process data can quickly adjust control parameters or discover potential failures throughout the system. Aiming
Zhao Jianjun, Zhou Junwu
doaj   +1 more source

Outlier Edge Detection Using Random Graph Generation Models and Applications [PDF]

open access: yes, 2016
Outliers are samples that are generated by different mechanisms from other normal data samples. Graphs, in particular social network graphs, may contain nodes and edges that are made by scammers, malicious programs or mistakenly by normal users ...
A Lancichinetti   +30 more
core   +3 more sources

A GMS-Guided Approach for 2D Feature Correspondence Selection

open access: yesIEEE Access, 2020
Feature correspondence selection, which aims to seek as many true matches (i.e., inliers) as possible from a given putative set while minimizing false matches (i.e., outliers), is crucial to many feature-matching based tasks in computer vision.
Qunfang Tang   +5 more
doaj   +1 more source

Outlier Elimination for Robust Ellipse and Ellipsoid Fitting

open access: yes, 2009
In this paper, an outlier elimination algorithm for ellipse/ellipsoid fitting is proposed. This two-stage algorithm employs a proximity-based outlier detection algorithm (using the graph Laplacian), followed by a model-based outlier detection algorithm ...
Kulkarni, Sanjeev R.   +3 more
core   +1 more source

Universal Outlier Hypothesis Testing

open access: yes, 2014
Outlier hypothesis testing is studied in a universal setting. Multiple sequences of observations are collected, a small subset of which are outliers. A sequence is considered an outlier if the observations in that sequence are distributed according to an
Li, Yun   +2 more
core   +1 more source

HOS-Miner: a system for detecting outlying subspaces of high-dimensional data [PDF]

open access: yes, 2004
[Abstract]: We identify a new and interesting high-dimensional outlier detection problem in this paper that is, detecting the subspaces in which given data points are outliers.
Ling, Tok Wang   +3 more
core   +1 more source

Fast Ways to Detect Outliers

open access: yesJournal of Techniques, 2021
The occurrence of tremendous developments in the field of data has led to the formation of huge volumes of data, and it is normal that this leads to the presence of outliers in this data for many reasons, which may have small or large values ​​compared ...
Emad Obaid Merza, Nashaat Jasim Mohammed
doaj   +1 more source

Comparison between Statistical Approaches and Data Mining Algorithms for Outlier Detection

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi
Outliers are observation values that are very different from most observations. The presence of outliers in data can have a negative impact on research but can contain important information for other research.
Annisa Putri Utami   +2 more
doaj   +1 more source

Anomaly-Tolerant Traffic Matrix Estimation via Prior Information Guided Matrix Completion

open access: yesIEEE Access, 2017
Network management, planning, and optimization rely on accurate and complete traffic measurement. However, anomalies and missing data are inevitable in direct traffic measurement because of high measurement costs and unreliable network transport ...
Wencai Ye   +4 more
doaj   +1 more source

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