Showing 1 - 10 of 40
problem, we proposed balanced gradient boosting (BalaBoost) which reformulates gradient boosting to avoid the overfitting to … outperformed the representative supervised learning algorithms, i.e., gradient boosting, Random Forests and Support Vector Machine …
Persistent link: https://www.econbiz.de/10005046618
-of-the-art classification methods. Moreover, a boosting algorithm is applied to this classification method. In addition, a simple procedure to …
Persistent link: https://www.econbiz.de/10005046627
-of-the-art classification methods. Moreover, a boosting algorithm is applied to this classification method. In addition, a simple procedure to …
Persistent link: https://www.econbiz.de/10005246497
The problem of finding periodically expressed genes from time course microarray experiments is at the center of numerous efforts to identify the molecular components of biological clocks. We present a new approach to this problem based on the cyclohedron test, which is a rank test inspired by...
Persistent link: https://www.econbiz.de/10005459176
The present article proposes general single-step multiple testing procedures for controlling Type I error rates defined as arbitrary parameters of the distribution of the number of Type I errors, such as the generalized family-wise error rate. A key feature of our approach is the test statistics...
Persistent link: https://www.econbiz.de/10005046568
The present article proposes two step-down multiple testing procedures for asymptotic control of the family-wise error rate (FWER): the first procedure is based on maxima of test statistics (step-down maxT), while the second relies on minima of unadjusted p-values (step-down minP). A key feature...
Persistent link: https://www.econbiz.de/10005046575
Dose-response studies are commonly used in experiments in pharmaceutical research in order to investigate the dependence of the response on dose, i.e., a trend of the response level toxicity with respect to dose. In this paper we focus on dose-response experiments within a microarray setting in...
Persistent link: https://www.econbiz.de/10005046576
Simultaneously testing a collection of null hypotheses about a data generating distribution based on a sample of independent and identically distributed observations is a fundamental and important statistical problem involving many applications. Methods based on marginal null distributions...
Persistent link: https://www.econbiz.de/10005046579
Simultaneously testing a collection of null hypotheses about a data generating distribution based on a sample of independent and identically distributed observations is a fundamental and important statistical problem involving many applications. In this article we propose a new re-sampling based...
Persistent link: https://www.econbiz.de/10005046583
This article shows that any single-step or stepwise multiple testing procedure (asymptotically) controlling the family-wise error rate (FWER) can be augmented into procedures that (asymptotically) control tail probabilities for the number of false positives and the proportion of false positives...
Persistent link: https://www.econbiz.de/10005046596