Results 111 to 120 of about 145,415 (266)
Neural Network Assisted Estimation for the Structural Nested Accelerated Failure Time Models. [PDF]
Stat MedABSTRACT Time‐varying confounding complicates the causal survival analysis for longitudinal data. Traditional survival models that adjust for time‐dependent covariates fail to estimate the intervention causal effect unbiasedly. The Structural Nested Accelerated Failure Time Model (SNAFTM) can address this challenge effectively. This model estimates the
Chen Y, Ma T, Smith P, Saegusa T.
europepmc +2 more sources
Price competition and convex costs [PDF]
In the original model of pure price competition, due to Joseph Bertrand (1883), firms have linear cost functions. For any number of identical such price-setting firms, this results in the perfectly competitive outcome; the equilibrium price equal the ...
Weibull, Jörgen
core
An objective Bayesian method for including parameter uncertainty in ensemble model output statistics
Quarterly Journal of the Royal Meteorological Society, EarlyView.Conventional model output statistics and ensemble model output statistics methods for calibrating ensemble forecasts lead to severe underestimation of the probabilities of ensemble extremes (in blue). This is because they ignore statistical parameter uncertainty.
Stephen Jewson +4 more
wiley +1 more source
Strategic Management Journal, EarlyView.Abstract Research Summary We study how the entry of a rival platform affects the strategies of the incumbent's complementors. The latter face a trade‐off: While the entry threatens their benefits from indirect network effects, it also allows them to escape intense within‐platform competition.
Johannes Loh, Ambre Elsas‐Nicolle
wiley +1 more source
Strategic positioning and accelerating regulatory clearance for new ventures
Strategic Management Journal, EarlyView.Abstract Research Summary How do new ventures strategically position their products to accelerate regulatory clearance? We investigate this question in the medical device industry, where regulatory clearance is a prerequisite for market entry. We examine 239 new firms' 510(k) device clearances by the FDA between 2001 and 2019.
Emily Cox Pahnke +2 more
wiley +1 more source
Multi‐level fatigue reliability assessment of reinforced concrete railway bridges
Structural Concrete, EarlyView.Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento +7 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT Periodic lattice material (PLM) is an innovative material system capable of rapidly and efficiently constructing functionally graded materials (FGMs). Among various PLM structures, triply periodic minimal surfaces (TPMS) exhibit numerous advantages, making TPMS‐based lattice materials a potential candidate to electrical FGMs.
Zihao Liu +7 more
wiley +1 more source
Multiple solutions under quasi-exponential discounting [PDF]
We consider a group or committee that faces a binary decision under uncertainty. Each member holds some private information. Members agree which decision should be taken in each state of nature, had this been known, but they may attach different values ...
Jörgen Weibull, Nicolas Vieille
core
Failure Probability Evaluation of GIL Tri‐Post Insulators Under Electromechanical Stresses
High Voltage, EarlyView.ABSTRACT Based on the energy theory, this paper proposes an evaluation method for the breakdown failure probability of the tri‐post insulator in a gas‐insulated metal‐enclosed transmission line (GIL). Various internal defects, vector forces and torque forces were considered, along with the application of an AC voltage.
Jianan Dong +4 more
wiley +1 more source
A knowledge curse: how knowledge can reduce human welfare
Royal Society Open ScienceGreater knowledge is always an advantage for a rational individual. However, this article shows that for a group of rational individuals greater knowledge can backfire, leading to a worse outcome for all.
Kaushik Basu, Jörgen Weibull
doaj +1 more source