Results 121 to 130 of about 97,649 (287)

An observation‐driven state‐space model for claims size modelling

Canadian Journal of Statistics, EarlyView.
Abstract State‐space models are popular in econometrics. Recently, these models have gained some popularity in the actuarial literature. The best known state‐space models are of the Kalman‐filter type. These are called parameter‐driven because the observations do not impact the state‐space dynamics.
Jae Youn Ahn, Himchan Jeong, Mario V. Wüthrich   +2 more
wiley   +1 more source

A goodness‐of‐fit test for regression models with discrete outcomes

Canadian Journal of Statistics, EarlyView.
Abstract Regression models are often used to analyze discrete outcomes, but classical goodness‐of‐fit tests such as those based on the deviance or Pearson's statistic can be misleading or have little power in this context. To address this issue, we propose a new test, inspired by the work of Czado et al.
Lu Yang, Christian Genest, Johanna G. Nešlehová   +2 more
wiley   +1 more source

Iranian Stomach Cancer Registry Data Analysed through Multivariate Adaptive Geographically Weighted Generalized Poisson Regression Spline

Archives of Advances in Biosciences
Introduction: In 2022, gastric and breast cancer had a mortality rate of 6.8 cases, ranking fourth despite intervention efforts. A 2020 study by the International Agency for Research on Cancer found global variations in incidence rates.
Zahra Nasseriakbar, Maryam Khayamzadeh, Amir Kavousi   +2 more
doaj   +1 more source

Emulating Six Cardiovascular Outcome Trials of Antidiabetic Drugs in Individuals with Type 2 Diabetes: Analyses Based on Real‐World Databases from Korea and Taiwan

Clinical Pharmacology &Therapeutics, EarlyView.
With the increasing volume of clinical evidence derived from large‐scale Asian real‐world data (RWD) and the growing interest in its use in regulatory decision‐making, it is important to conduct benchmarking exercises that evaluate whether studies using Asian RWD can generate similar conclusions as randomized controlled trials (RCTs).
Hwa Yeon Ko, Philip C. M. Au, Michael Chun‐Yuan Cheng, Ching‐Lung Cheung, Ahhyung Choi, Miyuki Hsing‐Chun Hsieh, Han Eol Jeong, Edward Chia‐Cheng Lai, Brian Meng‐Hsun Li, Kenneth K. C. Man, Jeremy A. Rassen, Daniel Hsiang‐Te Tsai, Shirley V. Wang, Ian C. K. Wong, Ju‐Young Shin, Sohee Park   +15 more
wiley   +1 more source

Statistical framework for condensation frosting incipience on smooth and nanostructured surfaces

Droplet, EarlyView.
A statistical framework for frost incipience that considers the effect of surface wettability and captures the stochastic nature of both nucleation dynamics for condensation and droplet growth during the subsequent freezing process. Abstract Frost and ice formation on a solid surface is governed by nanoscale liquid‒solid intermolecular interactions ...
Jiazheng Liu, Parsa Faghihi, Wenhao Yang, Siyan Yang, Vishwanath Ganesan, Omkar Gandhi, Jiayi Zhang, Wentao Yang, Nenad Miljkovic   +8 more
wiley   +1 more source

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

Deep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon, Qian Yin, Mikhail Guzev, Mikhail Turbakov, Evgenii Kozhevnikov, Nadezhda Riabokon, Ivan Panteleev   +6 more
wiley   +1 more source

Modelling the disability severity score in motor insurance claims: an application to the Spanish case [PDF]

Bodily injury claims have the greatest impact on the claim costs of motor insurance companies. The disability severity of motor claims is assessed in numerous European countries by means of score systems. In this paper a zero inflated generalized Poisson
Jean-Philippe Boucher, Miguel Santolino
core  

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source