Results 31 to 40 of about 2,957,243 (305)

Rao and Wald Tests in Nonzero-Mean Non–Gaussian Sea Clutter

Remote Sensing
The non-Gaussian nature of radar-observed clutter echoes induces performance degradation in the context of remote sensing target detection when using conventional Gaussian detectors. To enhance target detection performance, this study addresses the issue
Haoqi Wu, Hongzhi Guo, Zhihang Wang, Zishu He   +3 more
doaj   +1 more source

Un approccio robusto alla verifica d'ipotesi basato sulla funzione di verosomiglianza pesata

Statistica, 2007
Weighted version of the Likelihood Ratio, Wald and score tests are proposed for parametric inference. If the parametric model is correct, the Weighted Likelihood tests are asymptotically equivalent to the corresponding Likelihood tests.
Claudio Agostinelli
doaj   +1 more source

Power comparison among tests for fractional unit roots [PDF]

, 2008
This article compares the asymptotic power properties of the Wald, the Lagrange Multiplier and the Likelihood Ratio test for fractional unit roots. The paper shows that there is an asymptotic inequality between the three tests that holds under fixed ...
Velasco Gómez, Carlos, Lobato, Ignacio N., Velasco, Carlos   +2 more
core   +1 more source

Validating attribute hierarchies in cognitive diagnosis models

Frontiers in Psychology
Cognitive diagnosis models (CDMs) are restricted latent class models that are widely used in educational and psychological fields. Attribute hierarchy, as an important structural feature of the CDM, can provide critical information for inferring ...
Xueqin Zhang, Yu Jiang, Tao Xin, Yanlou Liu   +3 more
doaj   +1 more source

Applying Wald's Variance Component Test

The Annals of Statistics, 1983
In this note a generalization of a variance component test that was first suggested by Wald is examined. Necessary and sufficient conditions are given for the test to be applicable in a mixed linear model. A uniqueness property of the test in terms of degrees of freedom is also obtained.
Seely, Justus F., El-Bassiouni, Yahia
openaire   +2 more sources

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

Molecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas, Barbara Karakyriakou, Patricia C. Muskus, Alyssa M. Roberts, Justin Rendleman, Alexa Warren, Hanxu Lu, Kimberly A. Birmingham, Malone K. Friedman, Abigail E. Goen, Huijuan Yang, Owen M. Wilkins, Fred W. Kolling, Eugene Demidenko, Julie M. Jorns, Brock C. Christensen, Todd W. Miller   +16 more
wiley   +1 more source

One statistical test is sufficient for assessing new predictive markers

BMC Medical Research Methodology, 2011
Background We have observed that the area under the receiver operating characteristic curve (AUC) is increasingly being used to evaluate whether a novel predictor should be incorporated in a multivariable model to predict risk of disease.
Begg Colin B, Cronin Angel M, Vickers Andrew J   +2 more
doaj   +1 more source

PSYNDEX Tests Review für TAUS - TESTS ZUR AUDITIVEN SPRACHWAHRNEHMUNG

, 1988
This is a PSYNDEX Tests Review of TAUS - TESTS ZUR AUDITIVEN SPRACHWAHRNEHMUNG. PSYNDEX Tests Reviews are written in German and describe and evaluate psychological and educational tests used in the German-speaking countries.
Kroiss, Josef
core   +1 more source

Profiling neoadjuvant therapy response in rectal cancer using meta‐analysis of publicly available transcriptomic RNA‐seq datasets

Molecular Oncology, EarlyView.
This study integrates publicly available transcriptomic datasets to identify molecular signatures associated with response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer. By analyzing a combination of multiple cohorts with bioinformatics approaches, we reveal biological pathways and immune‐related features that may improve ...
Aleksandra Stanojevic, Rafael Stroggilos, Mladen Marinkovic, Ana Djuric, Suzana Stojanovic‐Rundic, Radmila Jankovic, Sergi Castellvi‐Bel, Remond J.A. Fijneman, Antonia Vlahou, Jerome Zoidakis, Milena Cavic   +10 more
wiley   +1 more source

Rao and Wald Tests for Moving Target Detection in Forward Scatter Radar

Remote Sensing
This paper deals with adaptive moving target detection for a forward scatter radar in complex Gaussian noise. The echoes received by the forward scatter radar include not only the noise and the possible target signals but also the direct signals.
Zeyu Wang, Hongmeng Chen, Yachao Li, Dewu Wang   +3 more
doaj   +1 more source