Showing 1 - 10 of 176,600
van der Laan and Dudoit (2003) provide a road map for estimation and performance assessment where a parameter of … interest is defined as the risk minimizer for a suitable loss function and candidate estimators are generated using a loss … minimizing, over subsets of variables (e.g., basis functions), the empirical risk of subset-specific estimators of the parameter …
Persistent link: https://www.econbiz.de/10005585079
methodology, which provides a road map for estimation and performance assessment. Given a parameter of interest which can be …-validation for estimator selection and minimizing over subsets of basis functions the empirical risk of the subset-specific estimator …/substitution/addition algorithm for minimizing over subsets of variables (e.g., basis functions) the empirical risk of subset-specific estimators of …
Persistent link: https://www.econbiz.de/10005751450
separately in the statistical literature, including multivariate outcome prediction and density estimation based on either …Current statistical inference problems in genomic data analysis involve parameter estimation for high …, selection, and performance assessment with cross-validation. In this approach, the parameter of interest is defined as the risk …
Persistent link: https://www.econbiz.de/10005459073
negative log-density loss function in density estimation. Minimizing the empirical risk (i.e., the empirical mean of the loss …-validated epsilon-net estimation methodology that covers a broad class of estimation problems, including multivariate outcome prediction … interest (i.e., the risk minimizer for the true data generating distribution). In this article, we propose a cross …
Persistent link: https://www.econbiz.de/10005459075
This paper addresses a methodological technique of leave-many-out cross-validation for choosing cutoff values in stepwise regression methods for simplifying the final regression model. A practical approach to choose cutoff values through cross-validation is to compute the minimum Predicted...
Persistent link: https://www.econbiz.de/10005046666
Persistent link: https://www.econbiz.de/10011417204
For the problem of model selection, full cross-validation has been proposed as alternative criterion to the traditional cross-validation, particularly in cases where the latter one is not well defined. To justify the use of the new proposal we show that under some conditions, both criteria share...
Persistent link: https://www.econbiz.de/10010310761
For the problem of model selection, full cross-validation has been proposed as alternative criterion to the traditional cross-validation, particularly in cases where the latter one is not well defined. To justify the use of the new proposal we show that under some conditions, both criteria share...
Persistent link: https://www.econbiz.de/10010956413
Persistent link: https://www.econbiz.de/10014342089
An important problem in epidemiology and medical research is the estimation of a causal effect of a treatment action at … adaptive loss-based estimation (as in machine learning) methodology, involving cross-validation to data adaptively select model … addition, we provide an application involving the estimation of the effect of lung function on survival in an elderly …
Persistent link: https://www.econbiz.de/10005751448