نتایج جستجو برای: lrt

تعداد نتایج: 756  

Journal: :EURASIP J. Adv. Sig. Proc. 2005
Bessem Sayadi Sylvie Marcos

This paper develops a newmultiuser detector based on a network of kalman filters (NKF) dealing withmultiple-access interference (MAI), intersymbol interference (ISI), and an impulsive observation noise. The two proposed schemes are based on the modeling of the DS-CDMA system by a discrete-time linear system that has non-Gaussian state and measurement noises. By approximating the non-Gaussian de...

2017
Iris Amitay-Laish Uma Sundram Richard T. Hoppe Emmilia Hodak Bruno C. Medeiros Youn H. Kim

ALL: acute lymphoblastic leukemia BPDCN: blastic plasmacytoid dendritic cell neoplasm CVAD: cyclophosphamide, vincristine, doxorubicin, dexamethasone CVAD A1B: cyclophosphamide, vincristine, doxorubicin, dexamethasone alternating with methotrexate and cytarabine HSCT: hematopoietic stem cell transplantation LRT: localized radiotherapy LS-BPDCN: localized skin-limited blastic plasmacytoid dendri...

2005
John R. Hipp Daniel J. Bauer Kenneth A. Bollen

This article describes a SAS macro to assess model fit of structural equation models by employing a test of the model-implied vanishing tetrads. Use of this test has been limited in the past, in part due to the lack of software that fully automates the test in a user-friendly way. The current SAS macro provides a straightforward method for researchers touse thevanishing tetrads impliedbymodels ...

2010
Chia-Ling Yen Jyh-Jen Horng Shiau HORNG SHIAU

For signalling alarms sooner when the dispersion of a multivariate process is “increased”, a multivariate control chart for Phase II process monitoring is proposed as a supplementary tool to the usual monitoring schemes designed for detecting general changes in the covariance matrix. The proposed chart is constructed based on the one-sided likelihood ratio test (LRT) for testing the hypothesis ...

2006
Cong Liu Zhijie Yan Yu Hu Renhua Wang

Two categories of Confidence Measure (CM) approaches for Mandarin command word recognition, i.e., Likelihood Ratio Testing (LRT) based CM and Word Posterior Probability (WPP) based CM, are investigated in this paper. Both Equal Error Rate (EER) and Confidence Error Rate (CER) performances of these approaches are evaluated on two databases: A Mandarin telephone command word database for which a ...

2012
MUSTAFA ÖZUYSAL

Passenger flow estimation of transit systems is essential for new decisions about additional facilities and feeder lines. For increasing the efficiency of an existing transit line, stations which are insufficient for trip production and attraction should be examined first. Such investigation supports decisions for feeder line projects which may seem necessary or futile according to the findings...

Journal: :Computational Statistics & Data Analysis 2010
Jörn Dannemann Hajo Holzmann

We consider switching regression models with independent or Markov-dependent regime. Based on the modified likelihood ratio test (LRT) statistic by Chen, Chen and Kalbfleisch (2004, JRSSB) we propose a test for two against more states of the underlying regime, and derive its asymptotic distribution in case when there is a single switching parameter. We show that its asymptotic distribution is r...

Journal: :Computational Statistics & Data Analysis 2005
Shagufta Aslam David M. Rocke

In classical statistics the likelihood ratio statistic used in testing hypotheses about covariance matrices does not have a closed form distribution, but asymptotically under strong normality assumptions is a function of the 2-distribution. This distributional approximation totally fails if the normality assumption is not completely met. In this paper we will present multivariate robust testing...

Background: High-Dose Insulin Euglycemic Therapy (HIET) and Lipid Rescue Therapy (LRT) are new alternative treatments for acute poisoning with calcium channel blockers. In this report a severely poisoned patient with verapamil and furosemide who was successfully treated with these two treatments is presented. Case report: A 27-year-old woman was brought to “Mother Theresa” Clinical Center in Sk...

2005
J. M. Górriz C. G. Puntonet

Introduction: Voice activity detection (VAD) remains a challenging problem in speech processing and affects a number of applications including noise reduction for digital hearing aid devices, speech recognition systems and speech coding for discontinuous speech transmission (DTX) in mobile and IP networks. During the last decade, researchers have paid attention to the study of discriminative fe...

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