Results 11 to 20 of about 304,299 (338)

Use the robust RFCH method with a polychoric correlation matrix in structural equation modeling When you are ordinal data [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
Structural Equation Modeling is a statistical methodology commonly used in the social and administrative sciences and all other.   In this research, the researcher made a comparison between methods of estimation Unweighted Least Squares with Mean and ...
Omar Salim, Mohammed Mohammed
doaj   +1 more source

Boscovich Fuzzy Regression Line

open access: yesMathematics, 2021
We introduce a new fuzzy linear regression method. The method is capable of approximating fuzzy relationships between an independent and a dependent variable.
Pavel Škrabánek   +2 more
doaj   +1 more source

LUNAR: Unifying Local Outlier Detection Methods via Graph Neural Networks [PDF]

open access: yesAAAI Conference on Artificial Intelligence, 2021
Many well-established anomaly detection methods use the distance of a sample to those in its local neighbourhood: so-called `local outlier methods', such as LOF and DBSCAN.
Adam Goodge   +3 more
semanticscholar   +1 more source

Finding time for computer science in the elementary school day: a quasi-experimental study of a transdisciplinary problem-based learning approach

open access: yesInternational Journal of STEM Education, 2020
Background As the number of computer science (CS) jobs become increasingly available in this country and computing skills become essential tools for managing all aspects of our personal lives, CS is quickly becoming an essential element of K-12 education
Jeanne Century   +2 more
doaj   +1 more source

Study on the Technology Trend Screening Framework Using Unsupervised Learning

open access: yesApplied Sciences, 2022
Outliers that deviate from a normal distribution are typically removed during the analysis process. However, the patterns of outliers are recognized as important information in the outlier detection method.
Junseok Lee, Sangsung Park, Juhyun Lee
doaj   +1 more source

Source Apportionment of Heavy Metal Contamination in Urban-Agricultural-Aquacultural Soils near the Bohai Bay Coast, Using Land-Use Classification and Google Satellite Tracing

open access: yesRemote Sensing, 2022
Heavy metal concentrations of Cd, As, Pb, Cu, Cr, and Hg were investigated for 86 soil samples in Jinzhou near the Bohai Sea in China, in order to identify what anthropological activities influenced their distribution levels. Ordinary cokriging (OCK) was
Ling Zeng   +3 more
doaj   +1 more source

On Selection Criteria for the Tuning Parameter in Robust Divergence

open access: yesEntropy, 2021
Although robust divergence, such as density power divergence and γ-divergence, is helpful for robust statistical inference in the presence of outliers, the tuning parameter that controls the degree of robustness is chosen in a rule-of-thumb, which may ...
Shonosuke Sugasawa, Shouto Yonekura
doaj   +1 more source

Outlier detection using iterative adaptive mini-minimum spanning tree generation with applications on medical data

open access: yesFrontiers in Physiology, 2023
As an important technique for data pre-processing, outlier detection plays a crucial role in various real applications and has gained substantial attention, especially in medical fields.
Jia Li   +5 more
semanticscholar   +1 more source

Medical Health Benefit Management System for Real-Time Notification of Fraud Using Historical Medical Records

open access: yesApplied Sciences, 2020
This paper presents a novel framework for fraud detection in healthcare systems which self-learns from the historical medical data. Historical medical records are required for training and testing of machine learning models.
Irum Matloob   +3 more
doaj   +1 more source

Comparison of Different Response Time Outlier Exclusion Methods: A Simulation Study

open access: yesFrontiers in Psychology, 2021
In response time (RT) research, RT outliers are typically excluded from statistical analysis to improve the signal-to-noise ratio. Nevertheless, there exist several methods for outlier exclusion.
Alexander Berger, M. Kiefer
semanticscholar   +1 more source

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