Výsledky vyhľadávania - "Numerical methods in probability and statistics"

Robust smoothing of gridded data in one and higher dimensions with missing values Autor Garcia, Damien

“…A fully automated smoothing procedure for uniformly sampled datasets is described. The algorithm, based on a penalized least squares method, allows fast…”
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ANDERSON ACCELERATION FOR FIXED-POINT ITERATIONS Autor WALKER, HOMER F., NI, PENG

“…This paper concerns an acceleration method for fixed-point iterations that originated in work of D. G. Anderson [J. Assoc. Comput. Mach., 12 (1965), pp…”
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Estimating classification error rate: Repeated cross-validation, repeated hold-out and bootstrap Autor Kim, Ji-Hyun

“…We consider the accuracy estimation of a classifier constructed on a given training sample. The naive resubstitution estimate is known to have a downward bias…”
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How Big is a Big Odds Ratio? Interpreting the Magnitudes of Odds Ratios in Epidemiological Studies Autor Chen, Henian, Cohen, Patricia, Chen, Sophie

“…The odds ratio (OR) is probably the most widely used index of effect size in epidemiological studies. The difficulty of interpreting the OR has troubled many…”
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Practical variable selection for generalized additive models Autor Marra, Giampiero, Wood, Simon N.

“…The problem of variable selection within the class of generalized additive models, when there are many covariates to choose from but the number of predictors…”
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Using the Standardized Difference to Compare the Prevalence of a Binary Variable Between Two Groups in Observational Research Autor Austin, Peter C.

“…Researchers are increasingly using the standardized difference to compare the distribution of baseline covariates between treatment groups in observational…”
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Optimal combination forecasts for hierarchical time series Autor Hyndman, Rob J., Ahmed, Roman A., Athanasopoulos, George, Shang, Han Lin

“…In many applications, there are multiple time series that are hierarchically organized and can be aggregated at several different levels in groups based on…”
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An adjusted boxplot for skewed distributions Autor Hubert, M., Vandervieren, E.

“…The boxplot is a very popular graphical tool for visualizing the distribution of continuous unimodal data. It shows information about the location, spread,…”
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Empirical characterization of random forest variable importance measures Autor Archer, Kellie J., Kimes, Ryan V.

“…Microarray studies yield data sets consisting of a large number of candidate predictors (genes) on a small number of observations (samples). When interest lies…”
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Multi-level Monte Carlo Finite Element method for elliptic PDEs with stochastic coefficients Autor Barth, Andrea, Schwab, Christoph, Zollinger, Nathaniel

“…In Monte Carlo methods quadrupling the sample size halves the error. In simulations of stochastic partial differential equations (SPDEs), the total work is the…”
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Search via Quantum Walk Autor Magniez, Frédéric, Nayak, Ashwin, Roland, Jérémie, Santha, Miklos

“…We propose a new method for designing quantum search algorithms for finding a "marked" element in the state space of a classical Markov chain. The algorithm is…”
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Statistical inverse problems: Discretization, model reduction and inverse crimes Autor Kaipio, Jari, Somersalo, Erkki

“…The article discusses the discretization of linear inverse problems. When an inverse problem is formulated in terms of infinite-dimensional function spaces and…”
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Large panels with common factors and spatial correlation Autor Pesaran, M. Hashem, Tosetti, Elisa

“…This paper considers methods for estimating the slope coefficients in large panel data models that are robust to the presence of various forms of error…”
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Sufficient and necessary conditions of stochastic permanence and extinction for stochastic logistic populations under regime switching Autor Li, Xiaoyue, Gray, Alison, Jiang, Daqing, Mao, Xuerong

“…In this paper, we prove that a stochastic logistic population under regime switching controlled by a Markov chain is either stochastically permanent or…”
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A Novel Hybrid Sequential Design Strategy for Global Surrogate Modeling of Computer Experiments Autor Crombecq, Karel, Gorissen, Dirk, Deschrijver, Dirk, Dhaene, Tom

“…Many complex real-world systems can be accurately modeled by simulations. However, high-fidelity simulations may take hours or even days to compute. Because…”
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An improved approximation to the precision of fixed effects from restricted maximum likelihood Autor Kenward, Michael G., Roger, James H.

“…An approximate small sample variance estimator for fixed effects from the multivariate normal linear model, together with appropriate inference tools based on…”
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Conditional Choice Probability Estimation of Dynamic Discrete Choice Models With Unobserved Heterogeneity Autor Arcidiacono, Peter, Miller, Robert A.

“…We adapt the expectation-maximization algorithm to incorporate unobserved heterogeneity into conditional choice probability (CCP) estimators of dynamic…”
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Dynamic model of worms with vertical transmission in computer network Autor Mishra, Bimal Kumar, Pandey, Samir Kumar

“…An e-epidemic SEIRS model for the transmission of worms in computer network through vertical transmission is formulated. It has been observed that if the basic…”
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An Adaptive Time-Stepping Strategy for the Molecular Beam Epitaxy Models Autor Qiao, Zhonghua, Zhang, Zhengru, Tang, Tao

“…This paper is concerned with the numerical simulations for the dynamics of the molecular beam epitaxy (MBE) model. The numerical simulations of the MBE models…”
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Regularization and variable selection via the elastic net Autor Zou, Hui, Hastie, Trevor

“…We propose the elastic net, a new regularization and variable selection method. Real world data and a simulation study show that the elastic net often…”
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