Linear combination methods to improve diagnostic/prognostic accuracy on future observations

the effects of error correction methods on pronunciation accuracy

هدف از انجام این تحقیق مشخص کردن موثرترین متد اصلاح خطا بر روی دقت آهنگ و تاکید تلفظ کلمه در زبان انگلیسی بود. این تحقیق با پیاده کردن چهار متد ارائه اصلاح خطا در چهار گروه، سه گروه آزمایشی و یک گروه تحت کنترل، انجام شد که گروه های فوق الذکر شامل دانشجویان سطح بالای متوسط کتاب اول passages بودند. گروه اول شامل 15، دوم 14، سوم 15 و آخرین 16 دانشجو بودند. دوره مربوطه به مدت 10 هفته ادامه یافت و د...

A min-max combination of biomarkers to improve diagnostic accuracy.

Diagnostic accuracy can be improved considerably by combining multiple biomarkers. Although the likelihood ratio provides optimal solution to combination of biomarkers, the method is sensitive to distributional assumptions which are often difficult to justify. Alternatively simple linear combinations can be considered whose empirical solution may encounter intensive computation when the number ...

Flexible combination of multiple diagnostic biomarkers to improve diagnostic accuracy

BACKGROUND In medical research, it is common to collect information of multiple continuous biomarkers to improve the accuracy of diagnostic tests. Combining the measurements of these biomarkers into one single score is a popular practice to integrate the collected information, where the accuracy of the resultant diagnostic test is usually improved. To measure the accuracy of a diagnostic test, ...

Gesture Recognition Using the Linear Combination of Membership Degrees of Observations

Shrinkage and Penalized Likelihood as Methods to Improve Predictive Accuracy

Hans C. van Houwelingen Saskia le Cessie Department of Medical Statistics, Leiden, The Netherlands P.O.Box 9604 2300 RC Leiden, The Netherlands email: [email protected] Abstract A review is given of shrinkage and penalization as tools to improve predictive accuracy of regression models. The James-Stein estimator is taken as starting point. Procedures covered are the Pre-test Estimation, ...