Results 11 to 20 of about 4,430,595 (297)
Mathematics, 2022 The article focuses on mortality models with a random effect applied in order to evaluate human mortality more precisely. Such models are called frailty or Cox models. The main assertion of the paper shows that each positive random effect transforms the initial hazard rate (or density function) to a new absolutely continuous survival function.
Jonas Šiaulys, Rokas Puišys
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CoRR, 2021 This paper studies regret minimization in a multi-armed bandit. It is well known that side information, such as the prior distribution of arm means in Thompson sampling, can improve the statistical efficiency of the bandit algorithm. While the prior is a blessing when correctly specified, it is a curse when misspecified.
Rong Zhu, Branislav Kveton
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Effective randomness for continuous measures [PDF]
Journal of the American Mathematical Society, 2021 We investigate which infinite binary sequences (reals) are effectively random with respect to some continuous (i.e., non-atomic) probability measure. We prove that for every n n , all but countably many reals are n n -random for such a measure, where n n indicates the arithmetical complexity of the ...
Reimann, Jan, Slaman, Theodore A.
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Filtering random layering effects in imaging [PDF]
, 2010 Objects that are buried deep in heterogeneous media produce faint echoes which are difficult to distinguish from the backscattered field. Sensor array imaging in such media cannot work unless we filter out the backscattered echoes and enhance the ...
Borcea, Liliana +3 more
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Effective multipoles in random media [PDF]
Communications in Partial Differential Equations, 2020 60 ...
Bella, P., Giunti, A., Otto, F.
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TMB: Automatic Differentiation and Laplace Approximation
Journal of Statistical Software, 2016 TMB is an open source R package that enables quick implementation of complex nonlinear random effects (latent variable) models in a manner similar to the established AD Model Builder package (ADMB, http://admb-project.org/; Fournier et al. 2011).
Kasper Kristensen +4 more
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A single-level random-effects cross-lagged panel model for longitudinal mediation analysis [PDF]
, 2017 Cross-lagged panel models (CLPMs) are widely used to test mediation with longitudinal panel data. One major limitation of the CLPMs is that the model effects are assumed to be fixed across individuals.
Carroll, Ian A., Chen, Po-Yi, Wu, Wei
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On the Construction of Effective Random Sets
Journal of Symbolic Logic, 2002 Abstract.We present a comparatively simple way to construct Martin-Löf random and rec-random sets with certain additional properties, which works by diagonalizing against appropriate martingales. Reviewing the result of Gács and Kučera, for any given set X we construct a Martin-Löf random set from which X can be decoded effectively.By a variant of the ...
Merkle, Wolfgang, Mihailović, Nenad
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Mathematics, 2022 This article presents the results of the implementation of a forecasting model, to predict the relief materials needed for assisting in decisions prior to natural disasters, thus filling a gap in the exploration of Generalized Linear Mixed Models (GLMM ...
Camila Pareja Yale +2 more
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On random-effects meta-analysis [PDF]
Biometrika, 2015 Meta-analysis is widely used to compare and combine the results of multiple independent studies. To account for between-study heterogeneity, investigators often employ random-effects models, under which the effect sizes of interest are assumed to follow a normal distribution.
D. Zeng, D. Y. Lin
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