Results 41 to 50 of about 302,114 (117)

Methods of competing risks flexible parametric modeling for estimation of the risk of the first disease among HIV infected men

BMC Medical Research Methodology, 2020
Background Patients infected with the Human Immunodeficiency Virus (HIV) are susceptible to many diseases. In these patients, the occurrence of one disease alters the chance of contracting another.
Sahar Nouri, Mahmood Mahmoudi, Kazem Mohammad, Mohammad Ali Mansournia, Mahdi Yaseri, Noori Akhtar-Danesh   +5 more
doaj   +1 more source

Hospital performance evaluation models: A scoping review

Journal of Education and Health Promotion
Evaluating the performance of hospitals, the largest budget consumers of the health system, is challenging. This scoping review aimed to identify and classify hospital performance evaluation models and their dimensions.
Shirin Alsadat Hadian, Reza Rezayatmand, Saeedeh Ketabi, Nasrin Shaarbafchizadeh, Ahmad Reza Pourghaderi   +4 more
doaj   +1 more source

Expect the unexpected: Augmented mixture models for black-hole-population studies

Astronomy & Astrophysics
Context. Black-hole-population studies are currently performed either using astrophysically motivated models (informed but rigid in their functional forms) or via non-parametric methods (flexible, but not directly interpretable). Aims.
Rinaldi Stefano
doaj   +1 more source

Graduating the age-specific fertility pattern using Support Vector Machines

Demographic Research, 2009
A topic of interest in demographic literature is the graduation of the age-specific fertility pattern. A standard graduation technique extensively used by demographers is to fit parametric models that accurately reproduce it.
Anastasia Kostaki, Javier Moguerza, Alberto Olivares, Stelios Psarakis   +3 more
doaj  

Short-term forecasting of German generation-based CO2 emission factors using parametric and non-parametric time series models

Energy Informatics
This study focuses on forecasting German generation-based CO2 emission factors to develop accurate prediction models, which help to shift flexible loads in time with low emissions.
Adrian Ostermann, Arian Bajrami, Alexander Bogensperger   +2 more
doaj   +1 more source

A parametric additive hazard model for time-to-event analysis

BMC Medical Research Methodology
Background In recent years, the use of non- and semi-parametric models which estimate hazard ratios for analysing time-to-event outcomes is continuously criticized in terms of interpretation, technical implementation, and flexibility.
Dina Voeltz, Annika Hoyer, Amelie Forkel, Anke Schwandt, Oliver Kuß   +4 more
doaj   +1 more source

Mass models of galaxy clusters from a non-parametric weak-lensing reconstruction

The Open Journal of Astrophysics
We study the CLASH sample of galaxy clusters using a new deprojection method for weak gravitational lensing observations. This method is non-parametric, allowing us to infer mass profiles, or equivalently circular velocities, without having to assume a ...
Tobias Mistele, Federico Lelli, Stacy McGaugh, James Schombert, Benoit Famaey   +4 more
doaj   +1 more source

Determinants of Iranian childless divorced women’s first marriage survival: a cross-sectional analysis

Social Determinants of Health
Background: Identifying the underlying factors contributing to the marriage survivals of childless divorced women can help increase possibility of childbearing and consequently raise of fertility rates. The aim of the present study is to investigate the
Arezoo Bagheri, Mahsa Saadati
doaj   +1 more source

Balancing speed and executability in interactive text-to-CAD code generation for early-stage parametric CAD ideation

Journal of King Saud University: Computer and Information Sciences
The demand for Computer-Aided Design (CAD) in industrial product development continues to grow, motivating a shift from traditional graphical interfaces toward automated parametric modeling workflows that support rapid iteration and interactive ...
Yuhao Sun, Hao Cheng, Shang Zheng, Hualong Yu, Haitao Zou   +4 more
doaj   +1 more source

Nonparametric and Parametric Modeling of Hydrodynamics for a Fully Appended Autonomous Underwater Vehicle

Journal of Marine Science and Engineering
Hydrodynamic models underpin Autonomous Underwater Vehicle (AUV) design, motion control, and performance evaluation. Existing methods face two critical bottlenecks: (1) conventional explicit CFD requires predefined trajectories, which fails to capture ...
Yingjie Guan, Xiaoyang Deng, Yougang Bian, Xuan Zeng, Xiaojun Zhuo, Xu Liu   +5 more
doaj   +1 more source