Results 61 to 70 of about 2,003,362 (204)

Stable-1/2 Bridges and Insurance [PDF]

, 2014
We develop a class of non-life reserving models using a stable-1/2 random bridge to simulate the accumulation of paid claims, allowing for an essentially arbitrary choice of a priori distribution for the ultimate loss.
Hoyle, Edward, Hughston, Lane P., Macrina, Andrea   +2 more
core   +3 more sources

Change Point Analysis for Functional Data Using Empirical Characteristic Functionals

Journal of Time Series Analysis, EarlyView.
ABSTRACT We develop a new method to detect change points in the distribution of functional data based on integrated CUSUM processes of empirical characteristic functionals. Asymptotic results are presented under conditions allowing for low‐order moments and serial dependence in the data establishing the limiting null‐distribution of the proposed test ...
Lajos Horváth, Gregory Rice, Jeremy VanderDoes   +2 more
wiley   +1 more source

Advancements in seasonal rainfall forecasting: A seasonal auto-regressive integrated moving average model with outlier adjustments for Ghana's Western Region

Scientific African
Accurate rainfall forecasting is essential for agricultural planning, water resource management, and disaster preparedness, particularly in regions with variable weather patterns, such as Ghana's Western Region.
Francis Ayiah-Mensah, Senyefia Bosson-Amedenu, Emmanuel Mensah Baah, John Awuah Addor   +3 more
doaj   +1 more source

Robust Bernoulli Mixture Models for Credit Portfolio Risk

Mathematical Finance, EarlyView.
ABSTRACT This paper presents comparison results and establishes risk bounds for credit portfolios within classes of Bernoulli mixture models, assuming conditionally independent defaults that are stochastically increasing in a common risk factor. We provide simple and interpretable conditions on conditional default probabilities that imply a comparison ...
Jonathan Ansari, Eva Lütkebohmert
wiley   +1 more source

Evaluating machine learning models for neonatal mortality prediction in data-scarce settings: a case study of Ghana

Journal of Electrical Systems and Information Technology
Neonatal mortality is a persistent challenge in low-resource countries, including Ghana, where achieving the Sustainable Development Goal (SDG) 3.2.2 target by 2030 requires effective forecasting strategies.
Francis Ayiah-Mensah, Govinda Das Yankah, Senyefia Bosson-Amedenu, Emmanuel Ayitey, Issaka Sulemana   +4 more
doaj   +1 more source

Special Issue “Interplay Between Financial and Actuarial Mathematics II”

Risks
Dear Reader, [...]
Corina Constantinescu, Julia Eisenberg
doaj   +1 more source

Insight into the dynamics of non-Newtonian Casson fluid over a rotating non-uniform surface subject to Coriolis force

Nonlinear Engineering, 2020
Casson fluid model is the most accurate mathematical expression for investigating the dynamics of fluids with non-zero plastic dynamic viscosity like that of blood. Despite huge number of published articles on the transport phenomenon, there is no report
Oke Abayomi S., Mutuku Winifred N., Kimathi Mark, Animasaun Isaac L.   +3 more
doaj   +1 more source

Hackathons in Statistics and Data Science Education and Experiences from ASA DataFest

Teaching Statistics, EarlyView.
Abstract Data hackathons provide a platform for students to work with real and challenging data, allowing them to practice both technical and transferable skills, such as data wrangling, visualization, modeling, effective communication, and teamwork. This level of active learning is difficult to achieve in a typical classroom setting.
Serveh Sharifi Far, Vanda Inácio, Ozan Evkaya, Amanda Lenzi   +3 more
wiley   +1 more source

Assessing cognitive growth in mathematics using multinomial logistic regression within Bloom’s taxonomy in higher education

Discover Education
Background Understanding how students transition through cognitive levels in mathematics remains central to curriculum design and quality learning assessment.
Senyefia Bosson-Amedenu, Emmanuel Mensah Baah, John Awuah Addor, Francis Ayiah-Mensah, Anthony Joe Turkson, Theodore Oduro-Okyireh   +5 more
doaj   +1 more source

Changing Patterns of Gender Representation in Canada's Technology Sector and the Care Economy: Two Differing Tales

Canadian Review of Sociology/Revue canadienne de sociologie, Volume 63, Issue 2, May 2026.
ABSTRACT Gender segregation is a persistent form of labour market inequality, though patterns differ across time and economic sectors. Focusing on the care economy and the technology sector, we examine longitudinal trends in gender distributions for educational credentials and occupational participation.
Neil Guppy, Maya Balzarini, Kamila Kolpashnikova, Katherine Lyon   +3 more
wiley   +1 more source