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1,699 Results Found

  • Article
  • Open Access
4 Citations
1,907 Views
14 Pages

8 February 2023

In this article, we establish a new class of nonparametric Shewhart-type control charts based on order statistics with signaling runs-type rules. The proposed charts offer to the practitioner the opportunity to reach, as close as possible, a pre-spec...

  • Article
  • Open Access
389 Views
16 Pages

1 November 2025

In this work, we introduce a statistical framework for monitoring the performance of a breakwater structure in reducing wave impact. The proposed methodology aims to achieve diligent tracking of the underlying process and the swift detection of any p...

  • Review
  • Open Access
4 Citations
5,801 Views
13 Pages

Fundamentals of Nonparametric Statistical Tests for Dental Clinical Research

  • Arturo Garrocho-Rangel,
  • Saray Aranda-Romo,
  • Rita Martínez-Martínez,
  • Verónica Zavala-Alonso,
  • Juan Carlos Flores-Arriaga and
  • Amaury Pozos-Guillén

29 September 2024

This article provides the foundation for employing nonparametric testing in dental clinical research. To make wise judgments in their research, investigators should learn more about the main nonparametric tests and their particular uses. Biostatistic...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,969 Views
13 Pages

A Nonparametric Statistical Approach to Content Analysis of Items

  • Diego Marcondes and
  • Nilton Rogerio Marcondes

1 February 2018

In order to use psychometric instruments to assess a multidimensional construct, we may decompose it into dimensions and, in order to assess each dimension, develop a set of items, so one may assess the construct as a whole, by assessing its dimensio...

  • Article
  • Open Access
9 Citations
7,884 Views
13 Pages

10 July 2012

We address the problem of non-parametric estimation of the recently proposed measures of statistical dispersion of positive continuous random variables. The measures are based on the concepts of differential entropy and Fisher information and describ...

  • Article
  • Open Access
3 Citations
2,530 Views
12 Pages

31 July 2019

Statistical analysis of the results of minisodar measurements of vertical profiles of wind velocity components in a 5–200 m layer of the atmosphere shows that this problem belongs to the class of robust nonparametric problems of mathematical st...

  • Article
  • Open Access
2 Citations
1,740 Views
15 Pages

18 October 2022

The majority of the widely used scan statistics are based on distributional assumptions. Contrary to the existing methods, with a new perspective in clustering, the Mann-Whitney Scan Statistic was introduced to detect clusters in continuous data inde...

  • Article
  • Open Access
1 Citations
1,976 Views
18 Pages

3 November 2023

This article is devoted to methods of processing random processes. This task becomes particularly relevant in cases where the random process is broadband and non-stationary; then, the measurement of a random process can be associated with an assessme...

  • Feature Paper
  • Article
  • Open Access
581 Views
35 Pages

19 September 2025

Nonparametric control charts are widely used in many manufacturing processes when there is a lack of knowledge about the distribution that the quality characteristic of interest follows. If there is evidence that the unknown distribution is symmetric...

  • Article
  • Open Access
322 Views
22 Pages

5 December 2025

This paper introduces novel non-parametric entropy-based evidence functions and associated test statistics for assessing the dilation order of probability distributions constructed from cumulative residual entropy and cumulative entropy. The proposed...

  • Article
  • Open Access
6 Citations
3,861 Views
22 Pages

Robust Estimation of Carbon Monoxide Measurements

  • Wilmar Hernandez and
  • Alfredo Mendez

2 September 2020

This paper presents a robust analysis of carbon monoxide (CO) concentration measurements conducted at the Belisario air-quality monitoring station (Quito, Ecuador). For the analysis, the data collected from 1 January 2008 to 31 December 2019 were con...

  • Article
  • Open Access
20 Citations
3,117 Views
39 Pages

28 December 2022

U-statistics are a fundamental class of statistics derived from modeling quantities of interest characterized by responses from multiple subjects. U-statistics make generalizations the empirical mean of a random variable X to the sum of all k-tuples...

  • Article
  • Open Access
10 Citations
2,780 Views
14 Pages

Biopolymer Non-Parametric Analysis: A Degradation Study under Accelerated Destructive Tests

  • Elias H. Arias-Nava,
  • Delia J. Valles-Rosales and
  • B. Patrick Sullivan

25 January 2023

The degradation of biopolymers such as polylactic acid (PLA) has been studied for several years; however, the results regarding the mechanism of degradation are not completely understood yet. PLA is easily processed by traditional techniques includin...

  • Article
  • Open Access
5 Citations
2,947 Views
30 Pages

15 October 2020

In this paper, a robust analysis of nitrogen dioxide (NO2) concentration measurements taken at Belisario station (Quito, Ecuador) was performed. The data used for the analysis constitute a set of measurements taken from 1 January 2008 to 31 December...

  • Article
  • Open Access
3 Citations
2,229 Views
16 Pages

7 March 2024

In this article, we establish new distribution-free Shewhart-type control charts based on rank sum statistics with signaling multiple scans-type rules. More precisely, two Wilcoxon-type chart statistics are considered in order to formulate the decisi...

  • Article
  • Open Access
7 Citations
1,771 Views
9 Pages

11 April 2023

Over the last few decades, the statisticians and reliability analysts have looked at putting exponentiality to the test using the Laplace transform technique. The non-parametric statistical test used in this study, which is based on this technique, e...

  • Article
  • Open Access
3 Citations
6,748 Views
27 Pages

This paper improves a kernel-smoothed test of symmetry through combining it with a new class of asymmetric kernels called the generalized gamma kernels. It is demonstrated that the improved test statistic has a normal limit under the null of symmetry...

  • Article
  • Open Access
22 Citations
3,652 Views
11 Pages

A one-consonant group approach to the authorship attribution has been proposed. The approach is based on determining, by the chi-square test, the consonant group in which the difference between the texts by different authors is statistically signific...

  • Article
  • Open Access
4 Citations
2,759 Views
15 Pages

Permutation Tests for Metaheuristic Algorithms

  • Mahamed G. H. Omran,
  • Maurice Clerc,
  • Fatme Ghaddar,
  • Ahmad Aldabagh and
  • Omar Tawfik

24 June 2022

Many metaheuristic approaches are inherently stochastic. In order to compare such methods, statistical tests are needed. However, choosing an appropriate test is not trivial, given that each test has some assumptions about the distribution of the und...

  • Article
  • Open Access
7 Citations
5,807 Views
19 Pages

ProUCL is a software package made available by the Environmental Protection Agency (EPA) to provide environmental scientists with better tools with which to conduct statistical analyses. ProUCL has been in production for over ten years and is in its...

  • Article
  • Open Access
27 Citations
7,953 Views
12 Pages

12 August 2019

A significant challenge for fMRI research is statistically controlling for false positives without omitting true effects. Although a number of traditional methods for multiple comparison correction exist, several alternative tools have been developed...

  • Article
  • Open Access
1 Citations
434 Views
19 Pages

26 November 2025

A nonparametric control chart is a type of control chart that does not rely on assumptions regarding the underlying distribution of the data. This characteristic provides greater flexibility and robustness, particularly when handling non-normal data,...

  • Article
  • Open Access
1 Citations
767 Views
23 Pages

17 February 2025

A product’s lifespan may be ascertained by analyzing the dependability and aging class of its life distribution. Sustainability metrics are also crucial for assessing the impact on the environment and creating resource-saving strategies. Resear...

  • Review
  • Open Access
15 Citations
8,298 Views
21 Pages

Big Data Analytics and Machine Learning in Supply Chain 4.0: A Literature Review

  • Elena Barzizza,
  • Nicolò Biasetton,
  • Riccardo Ceccato and
  • Luigi Salmaso

5 May 2023

Owing to the development of the technologies of Industry 4.0, recent years have witnessed the emergence of a new concept of supply chain management, namely Supply Chain 4.0 (SC 4.0). Huge investments in information technology have enabled manufacture...

  • Article
  • Open Access
7 Citations
3,661 Views
27 Pages

3 October 2020

To date, testing for Granger non-causality using kernel density-based nonparametric estimates of the transfer entropy has been hindered by the intractability of the asymptotic distribution of the estimators. We overcome this by shifting from the tran...

  • Article
  • Open Access
2 Citations
2,614 Views
19 Pages

28 December 2022

Nonparametric estimation for a probability density function that describes multivariate data has typically been addressed by kernel density estimation (KDE). A novel density estimator recently developed by Farmer and Jacobs offers an alternative high...

  • Article
  • Open Access
1 Citations
1,412 Views
8 Pages

1 August 2008

A method is described for the calculation of the three-parameter Weibull distribution function from censored samples. The method introduces a data driven technique based on an adapted Gaussian like kernel to match the censoring scheme. The method min
...

  • Article
  • Open Access
4 Citations
1,111 Views
23 Pages

25 August 2024

This paper presents several nonparametric estimators for the Sharma–Taneja–Mittal entropy measure of a continuous random variable with known support, utilizing spacing, a local linear model, and a kernel function. The properties of these...

  • Article
  • Open Access
2 Citations
700 Views
26 Pages

The complementary dual of entropy has received significant attention in the literature. Due to the emergence of many generalizations and extensions of entropy, the need to generalize the complementary dual of uncertainty arose. This article develops...

  • Article
  • Open Access
194 Views
26 Pages

26 February 2026

Line transect sampling is widely used for estimating population abundance, but existing nonparametric estimators of detection density at the transect line often suffer from boundary bias and tuning sensitivity. In this paper, we propose two simple tu...

  • Article
  • Open Access
9 Citations
5,802 Views
17 Pages

Change Point Detection with Mean Shift Based on AUC from Symmetric Sliding Windows

  • Yanguang Wang,
  • Guanna Huang,
  • Junjie Yang,
  • Huadong Lai,
  • Shun Liu,
  • Changrun Chen and
  • Weichao Xu

9 April 2020

Change point detection is widely used in signal detection, industrial engineering, economy, finance, biomedicine and many other fields. The widely used parametric methods require prior knowledge of the noise signal distribution, which are seldom real...

  • Article
  • Open Access
2 Citations
1,237 Views
16 Pages

Heat Treatment-Driven Structural and Morphological Transformation Under Non-Parametric Tests on Metal–Ceramic-Sputtered Coatings

  • Federico Gamboa-Soto,
  • Roberto Bautista-García,
  • Diana I. Llanes-Gil López,
  • Juan E. Bermea,
  • René Tinoco Mendiola,
  • Sion F. Olive-Méndez and
  • Andrés González-Hernández

The present study analyzes experimental data using qualitative and quantitative methods to identify significant statistical changes. These methods were employed to evaluate the results from the structural characterization of annealed TiWN and TiWC co...

  • Article
  • Open Access
401 Views
22 Pages

28 November 2025

We develop goodness-of-fit (GOF) procedures rooted in Tsallis entropy, with a particular emphasis on multivariate exponential-power (generalized Gaussian) and q-Gaussian models. The GOF statistic compares a closed-form Tsallis entropy under the null...

  • Article
  • Open Access
510 Views
39 Pages

The Influence of Magnification on Measurement Accuracy

  • Dmytro Malakhov,
  • Tatiana Kelemenová and
  • Michal Kelemen

19 December 2025

This article presents an experimental and statistical investigation of how optical magnification influences calibration constants, measurement results, and uncertainty in a digital optical microscope. Measurements were performed on reference gauge bl...

  • Article
  • Open Access
3 Citations
1,398 Views
17 Pages

14 February 2025

The Chalk River Laboratories (CRL) site in Ontario, Canada, has long been a hub for nuclear research, which has resulted in the accumulation of legacy nuclear waste, including radioactive materials such as uranium, plutonium, and other radionuclides....

  • Article
  • Open Access
1 Citations
5,195 Views
29 Pages

20 November 2017

The classical quadratic loss for the partially linear model (PLM) and the likelihood function for the generalized PLM are not resistant to outliers. This inspires us to propose a class of “robust-Bregman divergence (BD)” estimators of both the parame...

  • Article
  • Open Access
36 Citations
6,423 Views
19 Pages

Confronting Passive and Active Sensors with Non-Gaussian Statistics

  • Pablo Rodríguez-Gonzálvez,
  • Jesús Garcia-Gago,
  • Javier Gomez-Lahoz and
  • Diego González-Aguilera

30 July 2014

This paper has two motivations: firstly, to compare the Digital Surface Models (DSM) derived by passive (digital camera) and by active (terrestrial laser scanner) remote sensing systems when applied to specific architectural objects, and secondly, to...

  • Article
  • Open Access
15 Citations
6,507 Views
17 Pages

Power Performance Verification of a Wind Farm Using the Friedman’s Test

  • Wilmar Hernandez,
  • José Luis López-Presa and
  • Jorge L. Maldonado-Correa

3 June 2016

In this paper, a method of verification of the power performance of a wind farm is presented. This method is based on the Friedman’s test, which is a nonparametric statistical inference technique, and it uses the information that is collected by the...

  • Article
  • Open Access
22 Citations
7,043 Views
24 Pages

25 September 2013

We review a nonparametric version of Amari’s information geometry in which the set of positive probability densities on a given sample space is endowed with an atlas of charts to form a differentiable manifold modeled on Orlicz Banach spaces. This no...

  • Article
  • Open Access
22 Citations
8,059 Views
26 Pages

Constructing a Control Chart Using Functional Data

  • Miguel Flores,
  • Salvador Naya,
  • Rubén Fernández-Casal,
  • Sonia Zaragoza,
  • Paula Raña and
  • Javier Tarrío-Saavedra

2 January 2020

This study proposes a control chart based on functional data to detect anomalies and estimate the normal output of industrial processes and services such as those related to the energy efficiency domain. Companies providing statistical consultancy se...

  • Feature Paper
  • Article
  • Open Access
3 Citations
5,839 Views
39 Pages

NaRnEA: An Information Theoretic Framework for Gene Set Analysis

  • Aaron T. Griffin,
  • Lukas J. Vlahos,
  • Codruta Chiuzan and
  • Andrea Califano

21 March 2023

Gene sets are being increasingly leveraged to make high-level biological inferences from transcriptomic data; however, existing gene set analysis methods rely on overly conservative, heuristic approaches for quantifying the statistical significance o...

  • Article
  • Open Access
74 Citations
8,790 Views
31 Pages

20 September 2019

In order to identify the factors that have influenced the Romanian companies’ level of compliance required by the Directive 2013/34/EU with respect to publishing, alongside the annual financial statements for 2017, a report containing non-finan...

  • Article
  • Open Access
8 Citations
2,882 Views
23 Pages

Non-Parametric and Robust Sensitivity Analysis of the Weather Research and Forecast (WRF) Model in the Tropical Andes Region

  • Jhon E. Hinestroza-Ramirez,
  • Juan David Rengifo-Castro,
  • Olga Lucia Quintero,
  • Andrés Yarce Botero and
  • Angela Maria Rendon-Perez

6 April 2023

With the aim of understanding the impact of air pollution on human health and ecosystems in the tropical Andes region (TAR), we aim to couple the Weather Research and Forecasting Model (WRF) with the chemical transport models (CTM) Long-Term Ozone Si...

  • Article
  • Open Access
8 Citations
5,698 Views
19 Pages

6 May 2016

Being able to formally test for symmetry hypotheses is an important topic in many fields, including environmental and physical sciences. In this paper, one concentrates on a large family of nonparametric tests of symmetry based on Cramér–von Mises st...

  • Article
  • Open Access
209 Citations
12,351 Views
21 Pages

A Novel K-Means Clustering Algorithm with a Noise Algorithm for Capturing Urban Hotspots

  • Xiaojuan Ran,
  • Xiangbing Zhou,
  • Mu Lei,
  • Worawit Tepsan and
  • Wu Deng

25 November 2021

With the development of cities, urban congestion is nearly an unavoidable problem for almost every large-scale city. Road planning is an effective means to alleviate urban congestion, which is a classical non-deterministic polynomial time (NP) hard p...

  • Feature Paper
  • Article
  • Open Access
16 Citations
4,650 Views
29 Pages

A Probabilistic Model for Maximum Rainfall Frequency Analysis

  • Maurycy Ciupak,
  • Bogdan Ozga-Zieliński,
  • Tamara Tokarczyk and
  • Jan Adamowski

28 September 2021

As determining the probability of the exceedance of maximum precipitation over a specified duration is critical to hydrotechnical design, particularly in the context of climate change, a model was developed to perform a frequency analysis of maximum...

  • Article
  • Open Access
26 Citations
9,163 Views
19 Pages

Assessment of Long-Term Rainfall Variability and Trends Using Observed and Satellite Data in Central Punjab, Pakistan

  • Khalil Ahmad,
  • Abhishek Banerjee,
  • Wajid Rashid,
  • Zilong Xia,
  • Shahid Karim and
  • Muhammad Asif

28 December 2022

This study explores the spatio-temporal distribution and trends on monthly, seasonal, and annual scales of rainfall in the central Punjab districts of Punjab province in Pakistan by using observation and satellite data products. The daily observed da...

  • Article
  • Open Access
3 Citations
2,054 Views
11 Pages

10 September 2023

Probability life distributions usually describe the time to an event or survival time. Therefore, these life distributions play a crucial role in the analysis and projection of maximum life expectancy using the goodness of fit approach for nonparamet...

  • Article
  • Open Access
11 Citations
4,055 Views
19 Pages

Forecasting concentration levels is important for planning atmospheric protection strategies. In this paper, we focus on the daily average surface ozone (O3) concentration with a short-time resolution (one day ahead) in the Grand Casablanca Region of...

  • Article
  • Open Access
8 Citations
3,685 Views
21 Pages

The Long-Term Performance of a High-Density Polyethylene Geomembrane with Non-Parametric Statistic Analysis and Its Contribution to the Sustainable Development Goals

  • Beatriz M. C. Urashima,
  • Renato Santos,
  • Lucas D. Ferreira,
  • Toru Inui,
  • Denise C. Urashima and
  • Anderson R. Duarte

5 August 2024

The tailings from gold beneficiation can cause various negative impacts, necessitating measures to prevent their transport and environmental contamination. Geomembranes serve as hydraulic barriers in mining tailings reservoirs, thereby supporting the...

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