نتایج جستجو برای: misspecification

تعداد نتایج: 1560  

Journal: :Communications in computer and information science 2023

Estimating uncertainty of machine learning models is essential to assess the quality predictions that these provide. However, there are several factors influence estimates, one which amount model misspecification. Model misspecification always exists as mere simplifications or approximations reality. The question arises whether estimated under reliable not. In this paper, we argue should receiv...

2009
William A. Branch George W. Evans

This paper studies the implications for monetary policy of heterogeneous expectations in a New Keynesian model. The assumption of rational expectations is replaced with parsimonious forecasting models where agents select between predictors that are underparameterized. In a Misspecification Equilibrium agents only select the best-performing statistical models. We demonstrate that, even when mone...

2003
Anya McGuirk Paul Driscoll Jeffrey Alwang Huilin Huang

A misspecification testing strategy designed to ensure that the statistical assumptions underlying a system of equations are appropriate is outlined. The system tests take into account information in, and interactions between, all equations in the system and can be used in a wide variety of applications where systems of equations are estimated. The system testing approach is demonstrated by mod...

2015
Raymond Kan Nikolay Gospodinov Cesare Robotti

This paper derives explicit expressions for the asymptotic variances of the maximum likelihood and continuously updated GMM estimators under potentially misspecified models. The proposed misspecification-robust variance estimators allow the researcher to conduct valid inference on the model parameters even when the model is rejected by the data. Although the results for the maximum likelihood e...

Journal: :Communications in Statistics - Simulation and Computation 2017
John de Guzman Eustaquio Erniel B. Barrios

Nonparametric hypothesis testing procedures based on the bootstrap were developed in testing for constant clustering effect in a survival model that incorporates the clustering effect into the Cox Proportional Hazards model. In a clustered survival model, bootstrap estimators of the cluster-specific parameters are consistent. Simulation studies indicate that the procedure is correctly-sized and...

2003
CHERYL BURKE JARVIS SCOTT B. MACKENZIE PHILIP M. PODSAKOFF

A review of the literature suggests that few studies use formative indicator measurement models, even though they should. Therefore, the purpose of this research is to (a) discuss the distinction between formative and reflective measurement models, (b) develop a set of conceptual criteria that can be used to determine whether a construct should be modeled as having formative or reflective indic...

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