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Dissertations / Theses on the topic 'ROC (receiver operating characteristic) curve'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Caswell, Benjamin C. "Receiver Operating Characteristic (ROC) Curve Analysis of Affinity Profiles." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3012.pdf.

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Zhang, Zheng. "Semiparametric least squares analysis of the receiver operating characteristic curve /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/9578.

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Dodd, Lori Elizabeth. "Regression methods for areas and partial areas under the receiver-operating characteristic curve /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9567.

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4

BORGSTROM, MARK CRAIG. "ESTIMATION OF RECEIVER OPERATING CHARACTERISTIC (ROC) CURVE PARAMETERS: SMALL SAMPLE PROPERTIES OF ESTIMATORS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184127.

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When studying detection systems, parameters associated with the Receiver Operating Characteristic (ROC) curve are often estimated to assess system performance. In some applied settings it is often not possible to test the detection system with large numbers of stimuli. The resulting small sample statistics many have undesirable properties. The characteristics of these small sample ROC estimators were examined in a Monte Carlo simulation. Three popular ROC parameters were chosen for study. One of the parameters was a single parameter index of system performance, Area under the ROC curve. The ot

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5

Peng, Hongying. "ROC Curves for Ordinal Biomarkers." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1543582492604243.

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6

池田, 充., Takeo Ishigaki, Mitsuru Ikeda, 一信山内, and Kazunobu Yamauchi. "Relationship between Brier score and area under the binormal ROC curve." Elsevier, 2002. http://hdl.handle.net/2237/5310.

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7

Liu, Hua. "ASYMPTOTIC PROPERTIES OF PARTIAL AREAS UNDER THE RECEIVER OPERATING CHARACTERISTIC CURVE WITH APPLICATIONS IN MICROARRAY EXPERIMENTS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_diss/463.

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Receiver operating characteristic (ROC) curves are widely used in medical decision making. It was recognized in the last decade that only a specific region of the ROC curve is of clinical interest, which can be summarized by the partial area under the ROC curve (partial AUC). Early statistical methods for evaluating partial AUC assume that the data are from a specified underlying distribution. Nonparametric estimators of the partial AUC emerged recently, but there are theoretical issues to be addressed. In this dissertation, we propose two new nonparametric statistics, partially integrated ROC

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8

Stacy, Catherine Ann. "Applying mixed-effects receiver operating characteristic (ROC) curve analysis to diagnostic evaluations of human learning." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3035981.

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9

Contini, Letizia. "Identificazione del danno in strutture reticolari via frequenze di vibrare e Receiver Operating Characteristic (ROC) curve." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Il seguente elaborato affronta, nella sua prima parte, gli effetti che vari disturbi esterni ed incontrollabili, possono provocare sui parametri modali della struttura durante il monitoraggio dinamico, portando ad un'errata valutazione della salute di salute dell'opera. Allo scopo di ridurre questo problema, nella seconda parte della tesi, viene analizzata una struttura reticolare in acciaio sottoposta a indice di danno, temperatura e livello di rumore variabile. Tale modello è stato utilizzato per la ricerca di una metrica robusta che, indipendentemente dai disturbi esterni applicati, riesc

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10

Sun, Fangfang. "Semi-parametric inference for the partial area under the ROC curve." unrestricted, 2008. http://etd.gsu.edu/theses/available/etd-11192008-113213/.

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Thesis (M.S.)--Georgia State University, 2008.<br>Title from file title page. Gengsheng Qin, committee chair; Yu-Sheng Hsu, Yixin Fang, Yuanhui Xiao, committee members. Description based on contents viewed July 22, 2009. Includes bibliographical references (p. 29-30).

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11

Zhao, Hui. "Discrimination of High Risk and Low Risk Populations for the Treatment of STDs." Digital Archive @ GSU, 2011. http://digitalarchive.gsu.edu/math_theses/104.

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It is an important step in clinical practice to discriminate real diseased patients from healthy persons. It would be great to get such discrimination from some common information like personal information, life style, and the contact with diseased patient. In this study, a score is calculated for each patient based on a survey through generalized linear model, and then the diseased status is decided according to previous sexually transmitted diseases (STDs) records. This study will facilitate clinics in grouping patients into real diseased or healthy, which in turn will affect the method c

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12

Young, Mimy. "Evaluation of Non-Contact Sampling and Detection of Explosives using Receiver Operating Characteristic Curves." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/994.

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The growing need for fast sampling of explosives in high throughput areas has increased the demand for improved technology for the trace detection of illicit compounds. Detection of the volatiles associated with the presence of the illicit compounds offer a different approach for sensitive trace detection of these compounds without increasing the false positive alarm rate. This study evaluated the performance of non-contact sampling and detection systems using statistical analysis through the construction of Receiver Operating Characteristic (ROC) curves in real-world scenarios for the detecti

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13

池田, 充., Mitsuru Ikeda, 茂樹伊藤, et al. "Evaluation of a neural network classifier for pancreatic masses based on CT findings." Elsevier, 1997. http://hdl.handle.net/2237/5311.

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14

Khamesipour, Alireza. "IMPROVED GENE PAIR BIOMARKERS FOR MICROARRAY DATA CLASSIFICATION." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1573.

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The Top Scoring Pair (TSP) classifier, based on the notion of relative ranking reversals in the expressions of two marker genes, has been proposed as a simple, accurate, and easily interpretable decision rule for classification and class prediction of gene expression profiles. We introduce the AUC-based TSP classifier, which is based on the Area Under the ROC (Receiver Operating Characteristic) Curve. The AUCTSP classifier works according to the same principle as TSP but differs from the latter in that the probabilities that determine the top scoring pair are computed based on the relati

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Celidoni, Martina. "Essays on vulnerability to poverty and inequality." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422143.

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According to the recent report of The Commission on the Measurement of Economic Performance and Social Progress (CMEPSP), whose members are also Joseph Stiglitz, Amartya Sen and Jean Paul Fitoussi, statistical indicators are important for designing and assessing policies aiming at advancing the progress of society (Stiglitz, Sen, and Fitoussi, 2009). The main objective of the present work is to shed light on some aspects concerning the information provided by vulnerability to poverty and inequality indexes. The first chapter compares empirically the several measures of individual vulnerabil

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Herath, Dushanthi N. "Nonparametric Estimation of Receiver Operating Characteristic Surfaces Via Bernstein Polynomials." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc177212/.

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Receiver operating characteristic (ROC) analysis is one of the most widely used methods in evaluating the accuracy of a classification method. It is used in many areas of decision making such as radiology, cardiology, machine learning as well as many other areas of medical sciences. The dissertation proposes a novel nonparametric estimation method of the ROC surface for the three-class classification problem via Bernstein polynomials. The proposed ROC surface estimator is shown to be uniformly consistent for estimating the tru

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Ren, Peng. "Off-line and On-line Affective Recognition of a Computer User through A Biosignal Processing Approach." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/838.

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Physiological signals, which are controlled by the autonomic nervous system (ANS), could be used to detect the affective state of computer users and therefore find applications in medicine and engineering. The Pupil Diameter (PD) seems to provide a strong indication of the affective state, as found by previous research, but it has not been investigated fully yet. In this study, new approaches based on monitoring and processing the PD signal for off-line and on-line affective assessment (“relaxation” vs. “stress”) are proposed. Wavelet denoising and Kalman filtering methods are first used to re

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18

Blangero, Yoann. "Méthodologie de l’évaluation des biomarqueurs prédictifs quantitatifs et de la détermination d’un seuil pour leur utilisation en médecine personnalisée." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1125/document.

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En France, la recherche contre le cancer est un enjeu majeur de santé publique. On estime notamment que le nombre de nouveaux cas de cancer a plus que doublé entre 1980 et 2012. L’hétérogénéité des caractéristiques tumorales, pour un même cancer, impose des défis complexes dans la recherche de traitements efficaces. Dans ce contexte, des espoirs importants sont placés dans la recherche de biomarqueurs prédictifs reflétant les caractéristiques des patients ainsi que de leur tumeur afin d’orienter le choix de la stratégie thérapeutique. Par exemple, pour les cancers colorectaux métastatiques, il

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19

Murnane, Owen D., Faith W. Akin, S. D. Lynn, and D. G. Cyr. "“Monothermal caloric screening test performance: A relative operating characteristic (ROC) curve analysis." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etsu-works/1893.

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20

Yu, Daoping. "Early Stopping of a Neural Network via the Receiver Operating Curve." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etd/1732.

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This thesis presents the area under the ROC (Receiver Operating Characteristics) curve, or abbreviated AUC, as an alternate measure for evaluating the predictive performance of ANNs (Artificial Neural Networks) classifiers. Conventionally, neural networks are trained to have total error converge to zero which may give rise to over-fitting problems. To ensure that they do not over fit the training data and then fail to generalize well in new data, it appears effective to stop training as early as possible once getting AUC sufficiently large via integrating ROC/AUC analysis into the training pro

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Wang, Wen-Chyi. "Regularized variable selection in proportional hazards model using area under receiver operating characteristic curve criterion." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9972.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2009.<br>Thesis research directed by: Dept. of Mathematics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Murnane, Owen D., Faith W. Akin, Susan G. Lynn, and David G. Cyr. "Monothermal Caloric Screening Test Performance: A Relative Operating Characteristic Curve Analysis." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etsu-works/1788.

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Objective: The objective of the present study was to evaluate the performance of the monothermal caloric screening test in a large sample of patients. Design: A retrospective analysis of the medical records of 1002 consecutive patients who had undergone vestibular assessment at the Mayo Clinic during the years 1989 and 1990 was conducted. Patients with incomplete alternate binaural bithermal (ABB) caloric testing, congenital or periodic alternating nystagmus, or bilateral vestibular loss were excluded from the study. Clinical decision theory analyses (relative operating characteristic curves)

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23

Erte, Idil. "Bivariate Random Effects And Hierarchical Meta-analysis Of Summary Receiver Operating Characteristic Curve On Fine Needle Aspiration Cytology." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613619/index.pdf.

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In this study, meta-analysis of diagnostic tests, Summary Receiver Operating Characteristic (SROC) curve, bivariate random effects and Hierarchical Summary Receiver Operating Characteristic (HSROC) curve theories have been discussed and accuracy in literature of Fine Needle Aspiration (FNA) biopsy that is used in the diagnosis of masses in breast cancer (malignant or benign) has been analyzed. FNA Cytological (FNAC) examination in breast tumor is, easy, effective, effortless, and does not require special training for clinicians. Because of the uncertainty related to FNAC&lsquo<br>s accurate us

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24

Brown, Connolly Nancy. "Application of receiver operating characteristic analysis to a remote monitoring model for chronic obstructive pulmonary disease to determine utility and predictive value." Thesis, Brunel University, 2013. http://bura.brunel.ac.uk/handle/2438/8057.

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This is a foundational study that applies Receiver Operating Characteristic (ROC) analysis to the evaluation of a chronic disease model that utilizes Remote Monitoring (RM) devices to identify clinical deterioration in a Chronic Obstructive Pulmonary Disease (COPD) population. Background: RM programmes in Disease Management (DM) are proliferating as one strategy to address management of chronic disease. The need to validate and quantify evidence-based value is acute. There is a need to apply new methods to better evaluate automated RM systems. ROC analysis is an engineering approach that has b

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Xu, Ping. "Evaluation of Repeated Biomarkers: Non-parametric Comparison of Areas under the Receiver Operating Curve Between Correlated Groups Using an Optimal Weighting Scheme." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4261.

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Receiver Operating Characteristic (ROC) curves are often used to evaluate the prognostic performance of a continuous biomarker. In a previous research, a non-parametric ROC approach was introduced to compare two biomarkers with repeated measurements. An asymptotically normal statistic, which contains the subject-specific weights, was developed to estimate the areas under the ROC curve of biomarkers. Although two weighting schemes were suggested to be optimal when the within subject correlation is 1 or 0 by the previous study, the universal optimal weight was not determined. We modify this asym

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26

Eissa, Salah. "Condition monitoring of pharmaceutical powder compression during tabletting using acoustic emission." Thesis, Brunel University, 2003. http://bura.brunel.ac.uk/handle/2438/5244.

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This research project aimed to develop a condition monitoring system for the final production quality of pharmaceutical tablets and detection capping and lamination during powder compression process using the acoustic emission (AE) method. Pharmaceutical tablet manufacturers obliged by regulatory bodies to test the tablet's physical properties such as hardness, dissolution and disintegration before the tablets are released to the market. Most of the existing methods and techniques for testing and monitoring these tablet's properties are performed at the tablet post-compression stage. Furthermo

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27

Jirwe, Marcus. "Online Anomaly Detection on the Edge." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299565.

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The society of today relies a lot on the industry and the automation of factory tasks is more prevalent than ever before. However, the machines taking on these tasks require maintenance to continue operating. This maintenance is typically given periodically and can be expensive while sometimes requiring expert knowledge. Thus it would be very beneficial if one could predict when a machine needs maintenance and only employ maintenance as necessary. One method to predict when maintenance is necessary is to collect sensor data from a machine and analyse it for anomalies. Anomalies are usually an

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28

Cusumano, Carl Joseph. "Assessment of Residual Nonuniformity on Hyperspectral Target Detection Performance." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1565137429596905.

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29

Mattout, Jérémie. "Approches statistiques multivariées pour la localisation de l'activation cérébrale en magnétoencéphalographie et en imagerie par résonance magnétique fonctionnelle : vers une fusion d'informations multimodales." Paris 6, 2002. http://www.theses.fr/2002PA066440.

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30

Pospíšil, Lukáš. "Analýza ROC křivek zvukových signálů a jejich srovnání." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316445.

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This thesis deals with oportunity of ROC curve usage in the description of methods that work with sound signals. Specifically, it focuses on ways of detecting of stress in speech signals. The detection itselfs is done in a range of frequencies of the sound signal. There is also a classifier designed using ROC curves that decides whether the input signal is stressed or not. The output of this thesis are findings gathered from analyses and also some recommendation based on those analyses.

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Verdi, Marcio. "Prediçao de distribuíção de espécies arbustivo-arbóreas no sul do Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/115515.

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Em vista das mudanças ambientais em nível global, disponibilizar informações ecológicas e buscar uma melhor compreensão dos fatores e processos que moldam a distribuição de espécies, é uma iniciativa importante para o planejamento de ações de conservação. Neste contexto, a importância e carência de informações sobre a distribuição geográficas das espécies nos motivaram a predizer a distribuição potencial de arbustos e árvores das famílias Lauraceae e Myrtaceae na Floresta Atlântica, no sul do Brasil. Modelos lineares generalizados (GLM) foram usados para ajustar modelos preditivos com os regis

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32

Nalavolu, Praveen Reddy. "PERFORMANCE ANALYSIS OF SRCP IMAGE BASED SOUND SOURCE DETECTION ALGORITHMS." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/50.

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Steered Response Power based algorithms are widely used for finding sound source location using microphone array systems. SRCP-PHAT is one such algorithm that has a robust performance under noisy and reverberant conditions. The algorithm creates a likelihood function over the field of view. This thesis employs image processing methods on SRCP-PHAT images, to exploit the difference in power levels and pixel patterns to discriminate between sound source and background pixels. Hough Transform based ellipse detection is used to identify the sound source locations by finding the centers of elliptic

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LETO, BARONE Maria Stefania. "Analysis of a database to predict the result of allergy testing in vivo in patients with chronic nasal symptoms and the development of the software ARSTAT." Doctoral thesis, Università degli Studi di Palermo, 2014. http://hdl.handle.net/10447/91193.

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Background. This thesis consist of parts(i)Introduction in wich we present the clinical problem of rhinitis;(ii)the methods to evaluate the diagnostic choises;(iii)the rational errors in Allergy,(iv)the experimental part of thesis with wich we developed the software ARTSTAT,wich is the application of the analysis reported.Objective: We studied the ability of the logistic regression model obtained by the evaluaqtion of a database, to detect patients with positive allergy skin prick test(SPT)and patients with negative SPT. The model developed was valitated using the data set obtained from anothe

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Holtmann, Martin, Andreas Becker, Tobias Banaschewski, Aribert Rothenberger, and Veit Rößner. "Psychometric Validity of the Strengths and Difficulties Questionnaire-Dysregulation Profile." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-134171.

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Background: In many severely mentally disordered children, the clinical presentation is complicated by comorbid affective and behavioral dysregulation. Recently, a highly heritable behavioral phenotype of simultaneous deviance on the anxious/depressed, attention problems, and aggressive behavior syndrome scales has been identified on the Child Behavior Checklist Dysregulation Profile (CBCL-DP). The aim of the present pilot study was to determine an equivalent to the CBCL-DP using the Strengths and Difficulties Questionnaire (SDQ). Sampling and Methods: We applied stepwise linear discriminant a

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Holtmann, Martin, Andreas Becker, Tobias Banaschewski, Aribert Rothenberger, and Veit Rößner. "Psychometric Validity of the Strengths and Difficulties Questionnaire-Dysregulation Profile." Karger, 2011. https://tud.qucosa.de/id/qucosa%3A27564.

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Background: In many severely mentally disordered children, the clinical presentation is complicated by comorbid affective and behavioral dysregulation. Recently, a highly heritable behavioral phenotype of simultaneous deviance on the anxious/depressed, attention problems, and aggressive behavior syndrome scales has been identified on the Child Behavior Checklist Dysregulation Profile (CBCL-DP). The aim of the present pilot study was to determine an equivalent to the CBCL-DP using the Strengths and Difficulties Questionnaire (SDQ). Sampling and Methods: We applied stepwise linear discriminant

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Duncan, Andrew Paul. "The analysis and application of artificial neural networks for early warning systems in hydrology and the environment." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/17569.

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Artificial Neural Networks (ANNs) have been comprehensively researched, both from a computer scientific perspective and with regard to their use for predictive modelling in a wide variety of applications including hydrology and the environment. Yet their adoption for live, real-time systems remains on the whole sporadic and experimental. A plausible hypothesis is that this may be at least in part due to their treatment heretofore as “black boxes” that implicitly contain something that is unknown, or even unknowable. It is understandable that many of those responsible for delivering Early Warni

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Wang, Yuan. "Heart rate variability and respiration signals as late onset sepsis diagnostic tools in neonatal intensive care units." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S106/document.

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Le sepsis tardif, défini comme une infection systémique chez les nouveaux nés âgés de plus de 3 jours, survient chez environ 7% à 10% de tous les nouveau-nés et chez plus de 25% des nouveau-nés de très faible poids de naissance qui sont hospitalisés dans les unités de soins intensifs néonatals (USIN). Les apnées et bradycardies (AB) spontanées récurrentes et graves sont parmi les principaux indicateurs précoces cliniques de l'infection systémique chez les prématurés. L'objectif de cette thèse est de déterminer si la variabilité du rythme cardiaque (VRC), la respiration et l'analyse de leurs re

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Lemos, Catarina Isabel Ferreira Miranda. "Seleção de genes diferencialmente expressos baseada em metodologia ROC (Receiver Operating Characteristic)." Master's thesis, 2017. http://hdl.handle.net/1822/56110.

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Dissertação de mestrado em Bioinformática<br>A análise da expressão genética é essencial para uma identificação da função dos genes e para a identificação destes quando relacionados com doenças. Para a realização de um estudo em larga escala de mudanças na expressão genética é necessário encontrar um método que o faça com precisão e exatidão. Desta forma, foi aqui incluída, uma análise pela tecnologia de microarrays, uma ferramenta importante no diagnóstico de doenças. A execução de um método que identificasse genes com regulação negativa e positiva e genes diferencialmente expressos sim

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He, Yaohua. "Nonparametric methods for receiver operating characteristic (ROC) curve analysis in genomic studies and diagnostic medicine /." 2006. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=442590&T=F.

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Shih, Ai-Ling, and 石艾伶. "An analysis of Receiver Operating Characteristic (ROC) curve on seismo-ionospheric precursors of the TEC in Taiwan." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/96907108150943642907.

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碩士<br>國立中央大學<br>太空科學研究所<br>104<br>Receiver Operating Characteristic curve (ROC curve) be used to study seismo-ionospheric precursor (SIP) in Taiwan. A median-based method together with the z test is detected the relationship between ionospheric F2-peak plasma frequency foF2 and 50 M≥5.5 earthquakes, local GPS TEC (Total Electron Content) and 50 M≥5.5 earthquakes 1994-1999, and GIM (Global Ionospheric Map) TEC 129 M≥5.5 earthquakes 1999-2014 in Taiwan. First, it is calculated that move 15-day median, upper quartile and lower quartile for create the reference range of upper bound and lower bound

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Lourenço, Alexandra Sofia Costa. "Early warning system aplicado ao setor financeiro português: estudo de caso envolvendo o modelo receiver operating characteristic (ROC) curve." Master's thesis, 2017. http://hdl.handle.net/10071/15199.

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JEL Classification: G01, C87, E17<br>O presente estudo é realizado com o intuito de dar um modesto contributo aos modelos Early Warning Systems (EWS), uma área em constante desenvolvimento e de crescente interesse. Em concreto, pretende-se analisar os indicadores disponíveis no sector financeiro e macroeconómico nacional, de forma a validar quais os melhores indicadores para prever uma crise financeira em Portugal. Serão analisados dados do sector financeiro e macroeconómico português, com início no 1º trimestre de 1996 e término no 4º trimestre de 2016. A seleção deste horizonte temporal tev

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Tien, Wan-Ting, and 田婉廷. "Receiver Operating Characteristic Curve Analysis for Cure Survival Data." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07218155810473806316.

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碩士<br>國立臺灣大學<br>數學研究所<br>102<br>Benefited from the advanced technology and medical science, more and more effective treatments for different kinds of incurable diseases have been invented. For instance, patients will not die of cancer if the radiation kills all cancer cells, so there are plenty of right-censored data at the end of the observation period. The Kaplan-Meier type estimator of survival curve shows a long and stable plateau in the tail. A characteristic of such survival data is that the survival function does not converge to zero as time goes to infinity. It is called "cure survival

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Araújo, Joana Margarida Rodrigues Barros de. "Avaliação do desempenho de indicadores com base na metodologia ROC (Receiver Operating Characteristic)." Master's thesis, 2015. http://hdl.handle.net/1822/38681.

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Dissertação de mestrado em Bioinformática<br>O objetivo deste estudo é avaliar e comparar o desempenho de dois indicadores de previsão de risco de mortalidade neonatal para recém-nascidos de muito baixo peso (<1500g), o CRIB (Clinical Risk Index for Babies) e o SNAPPE II (Score for Neonatal Acute Physiology-Perinatal Extension II), com recurso à metodologia ROC (Receiver Operating Characteristic). A execução prática deste estudo foi suportada com auxílio a programas estatísticos próprios para a análise da metodologia ROC, como o SPSS, ROCNPA, Comp2ROC, ROCR e caTools. Os dados que contem

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Chiu, Chih-Heng, and 邱志恆. "Statistical Inferences for the Receiver Operating Characteristic Curve Analysis of An Optimal Marker." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/36807823386788458545.

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Yu, Suizhi. "A covariate-adjusted classification model for multiple biomarkers in disease screening and diagnosis." Diss., 2019. http://hdl.handle.net/2097/39460.

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Doctor of Philosophy<br>Department of Statistics<br>Wei-Wen Hsu<br>The classification methods based on a linear combination of multiple biomarkers have been widely used to improve the accuracy in disease screening and diagnosis. However, it is seldom to include covariates such as gender and age at diagnosis into these classification procedures. It is known that biomarkers or patient outcomes are often associated with some covariates in practice, therefore the inclusion of covariates may further improve the power of prediction as well as the classification accuracy. In this study, we focus on t

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DAGO, DOUGBA Noel. "Performance assessment of different microarray designs using RNA-Seq as reference." Doctoral thesis, 2012. http://hdl.handle.net/11562/404537.

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Abstract Nell’ ultimo decennio il completamento del sequenziamento di numerosi genomi ha reso possibile lo sviluppo di potenti tecniche di analisi del trascrittoma. La tecnologia del microarray è tra le innovazioni più importanti in questo settore (analisi del trascritoma). Essa permette di quantificare contemporaneamente l’espressione di migliaia di geni di un tessuto o di une cellula di interesse tramite l’ibridazione di essi (geni) con delle sonde precedentemente immobilizzate su una piccola superficie solida (chip). La tecnologia del microarray ha fortemente contribuito ad affrontare nu

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Chang, Ya-Wen, and 張雅玟. "Comparing and correction for the method of estimating three kinds of time-dependent Area under the Receiver Operating Characteristic curve." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80189855544715340582.

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碩士<br>國立中央大學<br>統計研究所<br>104<br>In the medical diagnosis, it usually recorded the measurements for covariates of patients with returning to clinic which also called time-dependent covariates. With the property of longitudinal data, it is not suitable for using traditional area under the Receiver Operating Characteristic curve (AUC) to distinguish the biomarkers for predicting ability of diseases. According to the methods in Heagerty & Zheng (2005), van Houwelingen, Putter (2012) and Blanche, Dartigues & Jacqmin-Gadda (2013), all can estimate time-dependent AUC. Since these three kinds of metho

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Hossain, Ahmed. "Contribution to Statistical Techniques for Identifying Differentially Expressed Genes in Microarray Data." Thesis, 2011. http://hdl.handle.net/1807/29749.

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With the development of DNA microarray technology, scientists can now measure the expression levels of thousands of genes (features or genomic biomarkers) simultaneously in one single experiment. Robust and accurate gene selection methods are required to identify differentially expressed genes across different samples for disease diagnosis or prognosis. The problem of identifying significantly differentially expressed genes can be stated as follows: Given gene expression measurements from an experiment of two (or more)conditions, find a subset of all genes having significantly different expre

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Kolísko, Jiří. "Bankruptcy prediction models in the Czech economy: New specification using Bayesian model averaging and logistic regression on the latest data." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-367716.

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The main objective of our research was to develop a new bankruptcy prediction model for the Czech economy. For that purpose we used the logistic regression and 150,000 financial statements collected for the 2002-2016 period. We defined 41 explanatory variables (25 financial ratios and 16 dummy variables) and used Bayesian model averaging to select the best set of explanatory variables. The resulting model has been estimated for three prediction horizons: one, two, and three years before bankruptcy, so that we could assess the changes in the importance of explanatory variables and models' predi

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"Diagnostic Utility of the Culture-Language Interpretive Matrix for the WISC-IV Among Referred Students." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.15045.

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abstract: The Culture-Language Interpretive Matrix (C-LIM) is a new tool hypothesized to help practitioners accurately determine whether students who are administered an IQ test are culturally and linguistically different from the normative comparison group (i.e., different) or culturally and linguistically similar to the normative comparison group and possibly have Specific Learning Disabilities (SLD) or other neurocognitive disabilities (i.e., disordered). Diagnostic utility statistics were used to test the ability of the Wechsler Intelligence Scales for Children-Fourth Edition (WISC-IV) C-L

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