Search Results - "Skewed distributions"

The new extended exponential gamma (NEEG) distribution: properties and applications to infectious disease modelling

Authors: Monishola Salau, Ganiyat Ishola Sanni, Bello Adewale Aderoju et al., Samuel

Source: Journal of Basics and Applied Sciences Research ; Vol. 3 No. 4 (2025); 225-235

Subject Terms: new extended exponential gamma distribution, flexible models, maximum likelihood estimation, survival analysis, covid-19 data, skewed distributions

File Description: application/pdf

Access URL: https://www.ajol.info/index.php/jobasr/article/view/302675

Estimation in copula models with two-piece skewed margins using the inference for margins method

Authors: Jonas Baillien Irène Gijbels Anneleen Verhasselt

Source: Econometrics and Statistics. 34:91-108

Subject Terms: Science & Technology, Fisher information, Economics, Statistics & Probability, 05 social sciences, Social Sciences, Generalized method of moments, Skewed distributions, 01 natural sciences, 4905 Statistics, 3802 Econometrics, T COPULAS, Business & Economics, Physical Sciences, 0502 economics and business, Asymptotic normality, Consistency, 0101 mathematics, Mathematics

Access URL: https://lirias.kuleuven.be/handle/20.500.12942/710126
https://doi.org/10.1016/j.ecosta.2022.05.002

The impact of distribution properties on sampling behavior

Authors: Thai Quoc Cao Benjamin Scheibehenne

Source: Frontiers in Psychology, Vol 16 (2025)

Subject Terms: search behavior, decision-making, skewed distributions, rare outcomes, estimation accuracy, Psychology, BF1-990

File Description: electronic resource

Relation: https://www.frontiersin.org/articles/10.3389/fpsyg.2025.1597227/full; https://doaj.org/toc/1664-1078

Access URL: https://doaj.org/article/e9ec359fb8c94f3c90faed8edf1316e4

Extreme signal amplitude events in neuromagnetic oscillations reveal brain aging processing across adulthood

Authors: Vasily A. Vakorin Hayyan Liaqat Sam M. Doesburg et al.

Source: Front Aging Neurosci
Frontiers in Aging Neuroscience, Vol 17 (2025)

Subject Terms: magnetoencephalography, ageing, temporal variability, skewed distributions, heavy tail distributions, Aging Neuroscience, Neurosciences. Biological psychiatry. Neuropsychiatry, brain rhythms, RC321-571

Access URL: https://pubmed.ncbi.nlm.nih.gov/40103930
https://doaj.org/article/b5d279f086254a0f998324d64b0d654b

A comparison of market risk measures from a twofold perspective: accurate and loss function

Authors: Sonia Benito Muela Carmen López-Martin Raquel Arguedas-Sanz et al.

Contributors: Sonia Benito Muela Carmen López-Martin Raquel Arguedas-Sanz et al.

Source: e-spacio. Repositorio Institucional de la UNED
Universidad Nacional de Educación a Distancia
e-spacio (DSpace). Repositorio Institucional de la UNED
instname
ACRN Journal of Finance and Risk Perspectives, Vol 11, Iss 1, Pp 79-104 (2023)

Subject Terms: APARCH model, backtesting, ddc:330, HF5601-5689, G15, skewed distributions, Expected shortfall, Backtesting, Skewed distributions, value at risk, Accounting. Bookkeeping, G1, HG1-9999, expected shortfall, C13, Value at Risk, C58, G11, aparch model, Finance

File Description: application/pdf

Access URL: https://hdl.handle.net/20.500.14468/11905
https://doaj.org/article/779c7b75b30648968da47f5ca91bd733
https://hdl.handle.net/10419/329620

Convexity of chance constraints for elliptical and skewed distributions with copula structures dependent on decision variables

Authors: Zhang, Heng Lisser, Abdel Laboratoire des signaux et systèmes (L2S) et al.

Contributors: Zhang, Heng Lisser, Abdel Laboratoire des signaux et systèmes (L2S) et al.

Source: https://hal.science/hal-05017149 ; 2025.

Subject Terms: Chance constraints Elliptical distributions Skewed distributions Generalized hyperbolic distributions Eventual convexity Normal mean-variance distributions Gumbel-Hougaard copula, Chance constraints, Elliptical distributions, Skewed distributions, Generalized hyperbolic distributions, Eventual convexity, Normal mean-variance distributions, Gumbel-Hougaard copula, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], [INFO.INFO-RO]Computer Science [cs]/Operations Research [math.OC], [MATH.MATH-PR]Mathematics [math]/Probability [math.PR]

Availability: https://hal.science/hal-05017149
https://hal.science/hal-05017149v1/document
https://hal.science/hal-05017149v1/file/sn-article.pdf
https://hal.science/hal-05017149v1/file/Fig_r%3D-1_2D.pdf
https://hal.science/hal-05017149v1/file/Fig_result_of_second_part_20231220_22_figure1.pdf
https://hal.science/hal-05017149v1/file/Fig_result_of_second_part_20231220_22_figure2.pdf
https://hal.science/hal-05017149v1/file/Fig_r_greater_-1_2D.pdf
https://hal.science/hal-05017149v1/file/Fig_r_less_-1_non-tangent_2D.pdf
https://hal.science/hal-05017149v1/file/Fig_The_graph_of_sqrt_theta_with_b_greater_0_and_r_less_-1.pdf

Population Median Estimation Using Auxiliary Variables: A Simulation Study with Real Data Across Sample Sizes and Parameters

Authors: Umer Daraz Fatimah A. Almulhim Mohammed Ahmed Alomair et al.

Source: Mathematics, Vol 13, Iss 10, p 1660 (2025)

Subject Terms: auxiliary information, population median, robust and non-conventional measures, sample sizes, skewed distributions, simulation study, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2227-7390/13/10/1660; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/d3dca02478e543448046272659a89abd

ESTIMATION OF POPULATION PROCESS CAPABILITY INDEX WITH CONFIDENCE

Authors: B.M. Golam Kibria Shipra Banik

Source: Proceedings on Engineering Sciences, Vol 5, Iss 1, Pp 15-30 (2023)

Subject Terms: average width, coverage probability, symmetric distribution, skewed distributions, modified intervals, TA1-2040, Engineering (General). Civil engineering (General), process capability index

Access URL: https://doaj.org/article/dbb63b67de9d4875816d44f97d78439f

Model-based clustering via skewed matrix-variate cluster-weighted models

Authors: Gallaugher M. P. B. Tomarchio S. D. McNicholas P. D. et al.

Source: Journal of Statistical Computation and Simulation. 92:2645-2666

Subject Terms: FOS: Computer and information sciences, Matrix-variate, cluster-weighted models, skewed distributions, 02 engineering and technology, Statistics - Applications, 01 natural sciences, Methodology (stat.ME), 0202 electrical engineering, electronic engineering, information engineering, Applications (stat.AP), mixture models, 0101 mathematics, Statistics - Methodology, clustering

File Description: application/pdf

Access URL: http://arxiv.org/abs/2111.14952
https://hdl.handle.net/20.500.11769/535438
https://doi.org/10.1080/00949655.2022.2084093

Computing and Estimating Distortion Risk Measures: How to Handle Analytically Intractable Cases?

Authors: Sahadeb Upretee Vytaras Brazauskas

Source: North American Actuarial Journal. 27:689-709

Subject Terms: Distribution Tails, Applied Statistics, 0502 economics and business, 05 social sciences, Skewed Distributions, Loss Severity, 0101 mathematics, Risk Measures, Numerical Analysis and Scientific Computing, 01 natural sciences, Mathematics

Robust Classification via Finite Mixtures of Matrix Variate Skew-t Distributions

Authors: Abbas Mahdavi Narayanaswamy Balakrishnan Ahad Jamalizadeh

Source: Mathematics, Vol 12, Iss 20, p 3260 (2024)

Subject Terms: ECME algorithm, image segmentation, mixture models, matrix variate distributions, skewed distributions, truncated normal distribution, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2227-7390/12/20/3260; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/8e5f764d407b4ec592946b6a909030ed

Comment on ‘Self-thinning forest understoreys reduce wildfire risk, even in a warming climate’

Authors: Miller, Ben Fontaine, Joseph Tangney, Ryan et al.

Subject Terms: Climate change, Environmental research, Environmental risk, Errors, Fires, Forest management, Forests, Global warming, Mapping, Size distribution, Skewed distributions, Wildfires

File Description: pdf

Relation: ispartof: Environmental research letters issue 6 vol 19; WOS:001219454200001; 991005664666107891; https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12162443870007891/13162443860007891; alma:61MUN_INST/bibs/991005664666107891

Availability: https://doi.org/10.1088/1748-9326/ad41ee
https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Comment-on-Self-thinning-forest-understoreys-reduce/991005664666107891
https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12162443870007891/13162443860007891

Analytic Challenges in Clinical Trials of Early Alzheimer’s Disease

Authors: Craig H. Mallinckrodt Ilya Lipkovich Suzanne B. Hendrix et al.

Source: Journal of Dementia and Alzheimer's Disease ; Volume 1 ; Issue 2 ; Pages: 98-108

Subject Terms: clinical trials, Alzheimer’s disease, skewed distributions

File Description: application/pdf

Relation: https://dx.doi.org/10.3390/jdad1020007

Availability: https://doi.org/10.3390/jdad1020007

Multivariate cluster weighted models using skewed distributions

Authors: Gallaugher M. P. B. Tomarchio S. D. McNicholas P. D. et al.

Source: Advances in Data Analysis and Classification. 16:93-124

Subject Terms: Methodology (stat.ME), FOS: Computer and information sciences, Cluster weighted models, Mixture models, Skewed distributions, Clustering, Statistics - Methodology

File Description: application/pdf

Access URL: http://arxiv.org/pdf/2103.09792
http://arxiv.org/abs/2103.09792
https://link.springer.com/content/pdf/10.1007/s11634-021-00480-5.pdf

Simulation approach for assessing the performance of the γEWMA control chart

Authors: Carmen Patino-Rodriguez Diana M. Pérez Olga Usuga Manco

Source: BIRD: BCAM's Institutional Repository Data
instname
BIRD. BCAM's Institutional Repository Data

Subject Terms: Simulation study, Autorregresive processes, EWMA control chart, 0101 mathematics, Average run lenght, Skewed distributions, 01 natural sciences

File Description: application/pdf

Access URL: https://bird.bcamath.org/bitstream/20.500.11824/1320/3/Patino_et_al_2021_woJournalFormat.pdf
http://hdl.handle.net/20.500.11824/1320
https://www.emerald.com/insight/content/doi/10.1108/IJQRM-04-2020-0109/full/html

Prediction and data mining of burned areas of forest fires: Optimized data matching and mining algorithm provides valuable insight

Authors: David A. Wood

Source: Artificial Intelligence in Agriculture, Vol 5, Iss, Pp 24-42 (2021)

Subject Terms: Data-matched prediction accuracy, Non-regression machine learning, Cumulative absolute error differentials, 13. Climate action, Wildfire feature selection, Agriculture, 15. Life on land, 01 natural sciences, Predicting highly skewed distributions, 0105 earth and related environmental sciences

Access URL: https://doaj.org/article/e79805410e334342a79fc476e36b26eb
https://www.sciencedirect.com/science/article/pii/S2589721721000118
http://www.sciencedirect.com/science/article/pii/S2589721721000118

Skewed non-Gaussian GARCH models for cryptocurrencies volatility modelling

Authors: Massimiliano Giacalone Roy Cerqueti Raffaele Mattera

Source: Information Sciences. 527:1-26

Subject Terms: Statistical Finance (q-fin.ST), 05 social sciences, Quantitative Finance - Statistical Finance, GARCH models, Volatility forecasting, 02 engineering and technology, Skewed distributions, FOS: Economics and business, Generalized error distribution, Generalized error distribution, GARCH models, Skewed distributions, Volatility forecasting, Non linear GARCH, 0502 economics and business, Non linear GARCH, 0202 electrical engineering, electronic engineering, information engineering

File Description: application/pdf

Access URL: http://arxiv.org/pdf/2004.11674
http://arxiv.org/abs/2004.11674
http://hdl.handle.net/11588/803035
https://dblp.uni-trier.de/db/journals/isci/isci527.html#CerquetiGM20
https://www.sciencedirect.com/science/article/pii/S0020025520302541
https://openresearch.lsbu.ac.uk/item/896vq
https://hdl.handle.net/11573/1410632

Estimating reliability: A comparison of Cronbach's α, McDonald's ωt and the greatest lower bound

Authors: Camila Paola Malkewitz Philipp Schwall Christian Meesters et al.

Source: Social Sciences and Humanities Open, Vol 7, Iss 1, Pp 100368- (2023)

Subject Terms: Non-tau-equivalent items, Skewed distributions, Missing data, Small samples, Heterogenous underlying constructs, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), H1-99

File Description: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S259029112200122X; https://doaj.org/toc/2590-2911

Access URL: https://doaj.org/article/6a1d60dbc902479d82279fec15483b97

Spatial modeling of precipitation based on data-driven warping of Gaussian processes

Authors: Αγου Βασιλικη(http://users.isc.tuc.gr/~vagou) Agou Vasiliki(http://users.isc.tuc.gr/~vagou) Παυλιδης Ανδρεας(http://users.isc.tuc.gr/~apavlidis) et al.

Subject Terms: Non-Gaussian data, Skewed distributions, Gaussian anamorphosis, Reanalysis data, Kriging, Warped Gaussian processes

File Description: application/pdf

Relation: info:eu-repo/grantAgreement/EC/FP7/246686; http://purl.tuc.gr/dl/dias/8D690926-FF07-44DB-A6B3-4F2A674563DF

Availability: http://purl.tuc.gr/dl/dias/8D690926-FF07-44DB-A6B3-4F2A674563DF

On optimal tests for circular reflective symmetry about an unknown central direction

Authors: Jose Ameijeiras-Alonso Christophe Ley Arthur Pewsey et al.

Source: Statistical papers

Subject Terms: Sine-skewed distributions, FOS: Computer and information sciences, Semi-parametric tests, 05 social sciences, Méthodes mathématiques et quantitatives, Probabilités, 01 natural sciences, Methodology (stat.ME), Le Cam asymptotic theory, 0502 economics and business, Statistique mathématique, 0101 mathematics, Circular statistics, Statistics - Methodology

File Description: 1 full-text file(s): application/pdf

Access URL: http://arxiv.org/pdf/1707.09272
http://arxiv.org/abs/1707.09272
https://arxiv.org/abs/1707.09272
https://ui.adsabs.harvard.edu/abs/2017arXiv170709272A/abstract
https://arxiv.org/pdf/1707.09272v1
https://difusion.ulb.ac.be/vufind/Record/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/298673/Holdings
https://biblio.ugent.be/publication/8696210
https://ideas.repec.org/a/spr/stpapr/v62y2021i4d10.1007_s00362-019-01150-7.html
https://EconPapers.repec.org/RePEc:spr:stpapr:v:62:y:2021:i:4:d:10.1007_s00362-019-01150-7
https://link.springer.com/article/10.1007/s00362-019-01150-7
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/298673