Results 31 to 40 of about 1,455 (190)

Predicting rare events using training data from stratified sampling designs, with application to human‐caused wildfire prediction

open access: yesCanadian Journal of Statistics, Volume 53, Issue 3, September 2025.
Abstract Response‐based sampling is often used in modelling rare events from large, imbalanced data for efficiency. When modelling the event with logistic regression, the sampling design may be adjusted for using sampling weights or an offset. We propose a stratified sampling design for modelling rare events with large data which improves on previous ...
Johanna de Haan‐Ward   +2 more
wiley   +1 more source

Modelling the distribution of plant‐associated microbes with species distribution models

open access: yesJournal of Ecology, Volume 113, Issue 6, Page 1434-1450, June 2025.
There are numerous challenges and open questions related to modelling the distribution of plant‐associated microbes. In this article, we present a conceptual framework for predictive modelling of the distribution of plant‐associated microbiota and apply this framework to a case study demonstrating how incorporating host information can improve the ...
Zihui Wang   +4 more
wiley   +1 more source

Beitragssatz, Kassenwettbewerb und Gesundheitsreform: Eine empirische Analyse [PDF]

open access: yes, 2007
The premium rates paid for statutory health insurance in Germany play a key role in the competition among health care funds. With the most recent health care reform (GKV-Wettbewerbsstärkungsgesetz GKV-WSG), a range of new products have been introduced ...
Andersen, Hanfried H.   +2 more
core  

“We Are the Sons of Our Own Deeds”: Comparing Skeletal Health and Frailty Indices in Deceased Individuals Across 2000 Years of Milanese History

open access: yesAmerican Journal of Biological Anthropology, Volume 186, Issue 3, March 2025.
ABSTRACT Objectives In bioarchaeology, the concepts of resilience and frailty, and their quantification through indices, have gathered significant attention. This study is the first to apply, evaluate, and compare skeletal frailty indices and aims to trace frailty over time while identifying methodological challenges in their use on a sample ...
Petrosino   +7 more
wiley   +1 more source

Joint analysis of longitudinal count and binary response data in the presence of outliers

open access: yesCanadian Journal of Statistics, Volume 53, Issue 1, March 2025.
Abstract In this article, we develop an innovative, robust method for jointly analyzing longitudinal count and binary responses. The method is useful for bounding the influence of potential outliers in the data when estimating the model parameters. We use a log‐linear model for the count response and a logistic regression model for the binary response,
Sanjoy Sinha
wiley   +1 more source

Das Nachfrageverhalten bei regionalen Spezialitäten : Das Beispiel Apfelwein in Hessen [PDF]

open access: yes, 2007
Apfelwein ist eine regionale Spezialität aus Hessen, welche auch über die Landesgrenzen hinaus typischerweise mit Hessen assoziiert wird. Hessischer Apfelwein erfüllt somit wesentliche Eigenschaften eines Erzeugnisses, das für eine Registrierung als ...
Kubitzki, Sabine, Schulz, Wiebke
core   +1 more source

Variable selection in modelling clustered data via within‐cluster resampling

open access: yesCanadian Journal of Statistics, Volume 53, Issue 1, March 2025.
Abstract In many biomedical applications, there is a need to build risk‐adjustment models based on clustered data. However, methods for variable selection that are applicable to clustered discrete data settings with a large number of candidate variables and potentially large cluster sizes are lacking.
Shangyuan Ye   +5 more
wiley   +1 more source

Flughafen- und Zugangsverkehrsmittelwahl in Deutschland - Ein verallgemeinerter Nested Logit-Ansatz [PDF]

open access: yes
The purpose of this paper is to present an airport and access mode choice model based on discrete choice theory. In particular, a nested logit-model approach is employed and alternatives are based on so-called "airport categories", which were formed from
Gelhausen, Marc Christopher
core   +1 more source

A new copula regression model for hierarchical data

open access: yesCanadian Journal of Statistics, Volume 53, Issue 1, March 2025.
Abstract This article proposes multivariate copula models for hierarchical data. They account for two types of correlation: one is between variables measured on the same unit, and the other is a correlation between units in the same cluster. This model is used to carry out copula regression for hierarchical data that gives cluster‐specific prediction ...
Talagbe Gabin Akpo, Louis‐Paul Rivest
wiley   +1 more source

Do Social Interaction Mechanisms Affect University Reputation? Evidence from the UK Higher Education Sector

open access: yesAbacus, Volume 61, Issue 1, Page 53-92, March 2025.
We investigate the influence of skilful utilization of social interaction dynamics on creating reputations for UK Higher Education Institutions (HEIs) during public funding cuts and scrutiny. The paper employs a content analysis method and follows an empirical design with a unique sample of 148 UK HEIs.
Rasha Ashraf Abdelbadie   +2 more
wiley   +1 more source

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