Results 171 to 180 of about 23,103 (324)

The Learning Rate Is Not a Constant: Sandwich-Adjusted Markov Chain Monte Carlo Simulation

Entropy
A fundamental limitation of maximum likelihood and Bayesian methods under model misspecification is that the asymptotic covariance matrix of the pseudo-true parameter vector θ* is not the inverse of the Fisher information, but rather the sandwich ...
Jasper A. Vrugt, Cees G. H. Diks
doaj   +1 more source

On testing for homogeneity with zero-inflated models through the lens of model misspecification. [PDF]

Int Stat Rev, 2022
Hsu WW, Mawella NR, Todem D.
europepmc   +1 more source

Spatial Econometrics Revisited: A Case Study of Land Values in Roanoke County [PDF]

Omitting spatial characteristics such as proximity to amenities from hedonic land value models may lead to spatial autocorrelation and biased and inefficient estimators.
McGuirk, Anya M., Bosch, Darrell J., Kaltsas, Ioannis K.   +2 more
core   +1 more source

Optimal Designs and Inspection Time Decisions for Gamma Accelerated Degradation Tests

Naval Research Logistics (NRL), EarlyView.
ABSTRACT This study analytically derives optimal designs for gamma accelerated degradation tests while incorporating inspection time as a design variable under both D‐ and V‐optimality criteria. Under D‐optimality, we prove that the optimal design allocates test units exclusively to the lowest and highest stress levels and adopts the longest inspection
Hung‐Ping Tung, I‐Chen Lee
wiley   +1 more source

Sensitivity of Fit Indices to Model Complexity and Misspecification in Exploratory Structural Equation Modeling

Psychology International
Exploratory structural equation modeling (ESEM) allows items to cross-load on nontarget factors and provides flexibility in modeling multidimensional survey data.
Xinya Liang, Chunhua Cao, Ji Li, Ejike J. Edeh, Jiaying Chen, Wen-Juo Lo   +5 more
doaj   +1 more source

Impact of model misspecification on model-based tests in PK studies with parallel design: real case and simulation studies. [PDF]

J Pharmacokinet Pharmacodyn, 2022
Guhl M, Mercier F, Hofmann C, Sharan S, Donnelly M, Feng K, Sun W, Sun G, Grosser S, Zhao L, Fang L, Mentré F, Comets E, Bertrand J.   +13 more
europepmc   +1 more source

Model misspecification analysis for bond options and Markovian hedging strategies [PDF]

, 2018
In this paper, we analyse the model misspecification risk of Markovian hedging strategies for discount bond options. We show how to decompose the Profit and Loss that results from model misspecification, and emphasize the importance of the position's ...
Gibson, Rajna, Lhabitant, Francois-Serge, Pistre, Nathalie, Bossy, Mireille, Talay, Denis   +4 more
core  

Use of the Lagrange Multiplier Test for Assessing Measurement Invariance Under Model Misspecification. [PDF]

Educ Psychol Meas, 2022
Guastadisegni L, Cagnone S, Moustaki I, Vasdekis V.   +3 more
europepmc   +1 more source

Imputation Estimators Partially Correct for Model Misspecification [PDF]

Inference problems with incomplete observations often aim at estimating population properties of unobserved quantities. One simple way to accomplish this estimation is to impute the unobserved quantities of interest at the individual level and then take ...
O'Brien John D., Seregin Arseni, Minin Vladimir N.   +2 more
core  

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source