Results 61 to 70 of about 212 (165)

Regularized reduced rank regression for mixed predictor and response variables

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract In this paper, we introduce the Generalized Mixed Regularized Reduced Rank Regression model (GMR4), an extension of the GMR3 model designed to improve performance in high‐dimensional settings. GMR3 is a regression method for a mix of numeric, binary and ordinal response variables, while also allowing for mixed‐type predictors through optimal ...
Lorenza Cotugno, Mark de Rooij, Roberta Siciliano   +2 more
wiley   +1 more source

Degenerate 2D bivariate Appell polynomials: properties and applications

Applied Mathematics in Science and Engineering, 2023
The development of certain aspects of hybrid special polynomials after incorporating monomiality principle, operational rules, and other properties and their aspects is obvious and indisputable.
Shahid Ahmad Wani, Arundhati Warke, Javid Gani Dar   +2 more
doaj   +1 more source

A Horse Race of Machine‐Learning Methods to Predict Banking Crises

International Finance, EarlyView.
ABSTRACT To examine if one machine‐learning model can consistently elucidate financial vulnerabilities, both over time and across levels of development, this paper applies 13 machine‐learning algorithms to evaluate comparative forecasting performance across several banking crises.
Emile du Plessis
wiley   +1 more source

On λ-linear functionals arising from p-adic integrals on Z p $\mathbb{Z}_{p}$

Advances in Difference Equations, 2021
The aim of this paper is to determine the λ-linear functionals sending any given polynomial p ( x ) $p(x)$ with coefficients in C p $\mathbb{C}_{p}$ to the p-adic invariant integral of P ( x ) $P(x)$ on Z p $\mathbb{Z}_{p}$ and also to that of P ( x 1 + ⋯
Dae San Kim, Taekyun Kim, Jongkyum Kwon, Si-Hyeon Lee, Seongho Park   +4 more
doaj   +1 more source

Representations by probabilistic Bernoulli and degenerate Bernoulli polynomials

We investigate the representation of arbitrary polynomials using probabilistic Bernoulli and degenerate Bernoulli polynomials associated with a random variable $Y$, whose moment generating function exists in a neighborhood of the origin. In addition, this paper explores the problem of representing arbitrary polynomials in terms of their higher-order ...
Kim, Dae san, Kim, Taekyun
openaire   +2 more sources

Sheffer type degenerate Euler and Bernoulli polynomials

Filomat, 2019
In this paper, we study some special polynomials which are related to Sheffer sequence. In addition, we give some new identities for these numbers and polynomials.
Kim, Taekyun, Ryoo, Cheon Seoung
openaire   +3 more sources

A joint model of cost and churn for the insurance industry

Journal of Risk and Insurance, EarlyView.
Abstract In insurance markets, claim costs are highly variable, heavy‐tailed, and difficult to predict. At the same time, policyholder retention and lapse behavior (customer churn) are critical determinants of long‐term profitability and solvency. Most existing models in the literature treat claim costs and lapses as independent, overlooking potential ...
Yumo Dong, Edward W. (Jed) Frees, Fei Huang, Francis K. C. Hui, Harald J. van Heerde   +4 more
wiley   +1 more source

Evaluation of cauchy polynomials via degenerate r-Stirling numbers

Mathematical and Computer Modelling of Dynamical Systems
In this paper, within the framework of unsigned degenerate [Formula: see text]-Stirling numbers, we establish connections among Cauchy polynomials, degenerate Bernoulli polynomials, and degenerate hyperharmonic numbers.
Zhuoyu Chen, Yuankui Ma, Taekyun Kim, Dae San Kim, Yanan Hei   +4 more
doaj   +1 more source

Some applications of degenerate poly-Bernoulli numbers and polynomials [PDF]

Georgian Mathematical Journal, 2017
Abstract In this paper, we consider degenerate poly-Bernoulli numbers and polynomials associated with a polylogarithmic function and a p-adic invariant integral on ℤ p
Kim, Dae San, Kim, Taekyun
openaire   +2 more sources

Anticipatory, Chronic, and Imminent: A Typology of Insecurities Underlying Protracted Conflict Displacement and Its Implications

Population and Development Review, EarlyView.
Abstract Protracted armed conflicts increasingly drive long‐term displacement, yet demographic frameworks often treat forced migration from conflict settings as a response to acute, singular events. This study introduces a typology of displacement grounded in the tempo and form of conflict‐related insecurities—anticipatory, chronic, and imminent—and ...
Stephanie M. Koning, Goleen Samari, Abigail Weitzman   +2 more
wiley   +1 more source