Results 91 to 100 of about 16,443 (262)

Bayesian inverse ensemble forecasting for COVID‐19

Canadian Journal of Statistics, EarlyView.
Abstract Variations in strains of COVID‐19 have a significant impact on the rate of surges and on the accuracy of forecasts of the epidemic dynamics. The primary goal for this article is to quantify the effects of varying strains of COVID‐19 on ensemble forecasts of individual “surges.” By modelling the disease dynamics with an SIR model, we solve the ...
Kimberly Kroetch, Don Estep
wiley   +1 more source

Copula‐based joint modelling of emergency department visits with time‐varying dependence

Canadian Journal of Statistics, EarlyView.
Abstract Jointly modelling multiple correlated count time series is essential in health services research, where outcomes like emergency visits for mental health and substance use often evolve together. Ignoring these dependencies can obscure meaningful trends and limit the effectiveness of policy evaluation.
Guanjie Lyu, Cindy Feng, Lihui Liu
wiley   +1 more source

An Improved CH₄ Profile Retrieving Method for Ground-Based Differential Absorption Lidar

Atmosphere
Range-resolved CH4 concentration measurement is important prior data for atmospheric physical and chemical models. Ground-based differential absorption lidar (DIAL) can measure the vertical distribution of CH4 concentration in the atmosphere.
Lu Fan, Yong Wan, Yongshou Dai
doaj   +1 more source

Attention is a smoothed cubic spline

CoRR
We highlight a perhaps important but hitherto unobserved insight: The attention module in a transformer is a smoothed cubic spline. Viewed in this manner, this mysterious but critical component of a transformer becomes a natural development of an old notion deeply entrenched in classical approximation theory.
Zehua Lai, Lek-Heng Lim, Yucong Liu
openaire   +2 more sources

Vine copula knockoffs for variable selection in gene expression studies

Canadian Journal of Statistics, EarlyView.
Abstract Identifying clinical and genetic markers is essential for stratifying cancer patients by survival outcomes and guiding personalized treatment strategies. However, gene expression studies often involve high‐dimensional predictors with mixed data types and complex dependence, which complicates reliable variable selection.
José Ulises Márquez Urbina, Alejandro Román Vásquez, Graciela González Farías, Gabriel Escarela   +3 more
wiley   +1 more source

Mapping Corporate Environment, Social, and Governance Discourses: Analysis of Korean Companies' Sustainability Reports (2014–2024)

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Corporations increasingly use Environmental, Social, and Governance (ESG) reports to articulate their commitments, priorities, and performance in sustainability governance. This study examines how Korean firms have configured and reconfigured their sustainability discourses across industries and time using 634 sustainability reports (2014–2024)
Taedong Lee, Sinjae Kang, Dian Wahyu Utami, Bohae Na   +3 more
wiley   +1 more source

A Robust Computational Workflow Utilizing Generalized Least Squares (GLS) and Generalized Estimating Equations (GEE‐GLM) for Longitudinal Flow Cytometry Maturation Data Analysis

Cytometry Part A, EarlyView.
ABSTRACT Routinely used statistical hypothesis tests are often inadequate for longitudinal flow cytometry data, necessitating more sophisticated modeling approaches. Analyzing dynamic biomarker expression across hematopoietic maturation presents several analytical challenges, notably nonlinearity, serial correlation between subsequent stages, and ...
Sixuan Joanna Wang, Ruben Deneer, Tom Schoenmakers, Stefan G. C. Mestrum, Yvonne M. C. Henskens, Otto Bekers, Anton H. N. Hopman, Frans C. S. Ramaekers, Mathie P. G. Leers   +8 more
wiley   +1 more source

Curve Smoothing Using Splines

Irish Mathematical Society Bulletin, 1985
This brief review of curve smoothing by means of splines reports no new theoretical results. The following two papers are recommended to get more information: \textit{E. J. Wegman} and \textit{I. W. Wright}, J. Am. Stat. Assoc. 78, 351-365 (1983; Zbl 0534.62017), and the paper of \textit{R. L. Eubank}, see the foregoing review, Zbl 0569.62052.
openaire   +2 more sources

TAMNet: Temporal and adaptive‐frequency network with MixStyle for cross‐region oil and fluid production forecasting

Deep Underground Science and Engineering, EarlyView.
This paper presents temporal and adaptive‐frequency network with MixStyle (TAMNet), a deep time‐series modeling framework for accurate and robust multi‐well oil productivity forecasting. TAMNet integrates transformer and long short‐term memory architectures to capture both short‐ and long‐term temporal dependencies, enhanced by a temporal gate unit ...
Chunxi Yang, Leifeng Meng, Qinghu Fan, Ziang Guo, Ting Bao, Pingdong Zhong, Fulin Luo   +6 more
wiley   +1 more source

Closed-Form Quintic B-Spline Reconstruction via Higher-Order Derivative Degeneration for Trajectory Smoothing

Machines
In industrial trajectory planning and real-time motion control, quintic B-splines are widely used for corner smoothing owing to their local support and high-order continuity. However, existing evaluation methods mainly rely on basis-function recursion or
Zhenyu Yin, Song Li, Heran Wang, Huixuan Zhu, Liming Zhang, Feiyang Gao, Xiongfei Zheng   +6 more
doaj   +1 more source