Results 51 to 60 of about 302,402 (283)

ROC curves and the X2 test [PDF]

Pattern Recognition Letters, 1996
In this paper we review the Receiver Operating Characteristic (ROC) curve, and the X^2 test statistic, in relation to the analysis of a confusion matrix. We then show how these two methods are related, and propose an extension to the ROC curve so that it shows contours of X^2 values.
openaire   +3 more sources

Fixel‐Based Analysis of Diffusion Imaging as a Quantitative Marker of Disease State in Spinocerebellar Ataxia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxias (SCAs) are a group of genetically heterogeneous neurodegenerative diseases causing progressive deterioration and reduced quality of life. Therapeutic advances have been limited by a lack of sensitive anatomic, functional, or diffusion imaging‐based biomarkers.
David J. Arpin, S. H. Subramony, the READISCA Consortium, David E. Vaillancourt, Tetsuo Ashizawa, Alexandra Durr, Thomas Mareci, Thomas Klockgether, Jennifer Faber, Henry L. Paulson, Gülin Öz, Matthew R. Burns   +11 more
wiley   +1 more source

Novel Tools for Single Comparative and Unified Evaluation of Qualitative and Quantitative Bioassays: SS/PV–ROC and SS-J/PV-PSI Index–ROC Curves with Integrated Concentration Distributions, and SS-J/PV-PSI Index Cut-Off Diagrams

Diagnostics
Background: This investigation is both a study of potential non-invasive diagnostic approaches for the bladder cancer biomarker UBC® Rapid test and a study including novel comparative methods for bioassay evaluation and comparison that uses bladder ...
Peter Oehr
doaj   +1 more source

Association of the ICH Score With Withdrawal of Life‐Sustaining Treatment Over a 10‐Year Period

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The intracerebral hemorrhage (ICH) score was developed to enhance provider communication and facilitate early severity assessment. We examined the association of the ICH score with mortality and withdrawal of life‐sustaining treatment (WLST) in a large, multicenter stroke registry, and evaluated temporal trends in these associations.
Nina Massad, Lili Zhou, Brian Manolovitz, Negar Asdaghi, Hannah Gardener, Hao Ying, Carolina M. Gutierrez, Angus Jameson, David Rose, Mohan Kottapally, Amedeo Merenda, Kristine O'Phelan, Sebastian Koch, Jose G. Romano, Tatjana Rundek, Ayham Alkhachroum   +15 more
wiley   +1 more source

A boosting method for maximizing the partial area under the ROC curve

BMC Bioinformatics, 2010
Background The receiver operating characteristic (ROC) curve is a fundamental tool to assess the discriminant performance for not only a single marker but also a score function combining multiple markers.
Eguchi Shinto, Komori Osamu
doaj   +1 more source

Quantitative Shape Irregularity and Density Heterogeneity Predict Hematoma Expansion in Patients With Intracerebral Hemorrhage

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose This study aimed to explore the association between quantitative shape irregularity and density heterogeneity of hematomas and hematoma expansion (HE) for intracerebral hemorrhage (ICH) patients. Methods This cohort study included patients arriving within 24 h of symptom onset between August 2021 and July 2022 as the derivation cohort ...
Zeqiang Ji, Yunyi Hao, Bin Gao, Xiaojing Zhang, Yani Zhang, Jiaokun Jia, Xue Xia, Yuhao Guo, Sijia Li, Jianwei Wu, Kaijiang Kang, Xingquan Zhao   +11 more
wiley   +1 more source

COMPARING DIAGNOSTIC TESTS FROM ROC CURVE COMPARACIÓN DE PRUEBAS DIAGNÓSTICAS DESDE LA CURVA ROC

Revista Colombiana de Estadística, 2007
We study the problem of comparing the power of classification of different methods from the ROC Curve. On one hand, we propose a method based on the supremum measure and, on the other hand, we study the problem of comparing two or more ROC curves from ...
Martínez-Camblor Pablo
doaj  

Treating lupus nephritis patients to lupus low disease activity reduces renal relapse and preserves long‐term kidney function

Arthritis Care &Research, Accepted Article.
Objective Lupus low disease activity state (LLDAS) is a validated treatment target in systemic lupus erythematosus (SLE) but limited studies have explored the role of LLDAS in lupus nephritis (LN). This study aims to investigate the frequency and predictors of LLDAS attainment, and its benefit on LN relapse and renal function preservation in patients ...
Chak Kwan Cheung, Desmond YH Yap, KL Lee, Philip H Li, Iris YK Tang, Chak Sing Lau, Shirley CW Chan   +6 more
wiley   +1 more source

Comparación de pruebas diagnósticas desde la curva ROC Comparing Diagnostic Tests from ROC Curve

Revista Colombiana de Estadística, 2007
Se aborda el problema de comparar el poder de clasificación de métodos diferentes a partir de la curva ROC. Por un lado, se propone un método de comparación basado en la medida del supremo y, por otro, una solución al problema de comparar más de dos ...
PABLO MARTÍNEZ-CAMBLOR
doaj  

Confidence Bands for ROC Curves [PDF]

, 2003
Abstract : We address the problem of comparing the performance of classifiers. In this paper we study techniques for generating and evaluating confidence bands on ROC curves. Historically this has been done using one-dimensional confidence intervals by freezing one variable-the false-positive rate, or threshold on the classification scoring function ...
Macskassy, Sofus A., Provost, Foster, Littman, Michael L.   +2 more
openaire   +2 more sources