Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 47 for “"ROC-analysis"”.
-
Advances in estimation and inference around a biomarker’s true and false classification rates under trichotomous settings
… configurations (trichotomous setting), the usual ROC analysis needs to be considered in a 3-dimensional framework. In this thesis, under the framework of the 3-dimensional ROC analysis, I propose new parametric, semi-parametric, and non-parametric approaches that can improve the assessment of …
-
Evaluation eines hepatischen Perfusionsindex zur Früherkennung von Tumorrezidiven nach RFA und Erkennung von Leber-Malignomen bei Leberzirrhose
… with receiver-operating characteristic (ROC) analysis. Wilcoxon test was used to check quantitative AEF differences between diseased and normal liver. The mean AEF of segments that developed metastases was significantly higher (62±23%) when compared to the mean of segments that did not …
-
Methylation analysis and diagnostics of Beckwith-Wiedemann syndrome
… diagnosis. In particular, methylation status analysis at two 11p15.5 imprinting control centres (IC1 and IC2) detects up to 80% of BWS cases. However, this is not without its limitations, especially in the detection of low-level mosaicism.<br/><br/>In order to evaluate the relationship between …
-
Does the Preparticipation Examination Aid in Identifying Future Risk of Concussion?
… sport, and concussion history, a frequency analysis of the four ImPACT composites, total BESS score, total SAC score, gender, sport, and injury history, a series of one-way ANOVAs, a ROC analysis, and a discriminant function analysis.</p> <p><strong>Results: </strong>The frequency analysis …
-
The effect of lineup size on eyewitness identification accuracy
Eyewitness identification via lineup procedures is an important and widely used source of evidence in criminal cases. However, the current scientific literature provides inconsistent guidance on a very basic question of lineup procedure: lineup size. Some of the ambiguity in the field may be due to …
-
Transformation-invariance properties of Grad-CAM in Convolutional Neural Networks
… like the Euclidean (L2) difference and AUC-ROC analysis. Through extensive experiments, we demonstrate that Grad-CAM heatmaps exhibit varying degrees of inconsistency under transformations. To mitigate this variability, we propose and validate heatmap averaging methods, producing robust, …
-
Automated mammographic mass shape classification using wavelets and neural networks
… studied using receiver operating characteristic (ROC) analysis. (Abstract shortened by UMI.).
-
Screening for HIV-associated neurocognitive disorders in perinatally infected youth: Validation of the CAT-rapid version 2 screening tool
… Rapid v2 tool in screening for all forms of neurocognitive impairment in a sample of youth living with HIV in Cape Town, South Africa. Design: We analysed the existing dataset of the neuro sub-study which was nested within the larger CTAAC study (Cape Town Adolescent Antiretroviral Cohort). The …
-
Integration of Multidimensional Signal Detection Theory with Fuzzy Signal Detection Theory
… Two receiver operating characteristic (ROC) studies were performed, one simulated and one empirical. The results from both ROC analysis indicated that for perceptually separable and perceptually integral complex stimuli that MFDST is a viable methodological approach to analyzing …
-
The Effects of Obstructive Sleep Apnea Syndrome on Cardiovascular Function with Exercise Testing in Young Adult Males
… linear regression and receiver operator curve (ROC) analysis was utilized. Results: Ventilation (VE), the ventilatory equivalents for oxygen (VE/VO₂) and carbon dioxide (VE/VCO₂) were greater in the OSAS subjects vs. the overweight subjects without OSAS (P = 0.05, P < 0.05 and P < 0.005, …
-
Early prediction of pregnancy disorders with machine learning guided Raman spectroscopy, and metabolomics.
… while partial least squares-discriminant analysis (PLS-DA) was also applied to GDM data to explore potential for predictive modeling. AUC-Roc analysis successfully classified the PTL group with an AUC = 0.831 and a 95% confidence interval of 0.515-1, while GDM had an AUC = 0.99 and a 95% …
-
Adaptive Behavior Deficits in Adults with Autism Spectrum Disorder- Cutoff Scores for the ASD-D-A according to DSM-5 Criteria.
… computed using measures of central tendency and ROC analysis, and presented with corresponding considerations. A MANOVA was conducted to examine differences in adaptive behavior between the new ASD vs. non-ASD group, and the DSM-5, DSM-IV, and non-ASD groups using the VABS-II. Differences in …
-
An immunoproteomic approach to identifying cancer-associated autoantibody biomarkers
… and diagnosis can be performed through medical procedures, which are highly invasive, requiring an intensive infrastructure. It is therefore important to create cost-effective, non-invasive cancer diagnostic tools that also gives an indication of disease prognosis. With this in mind, the …
-
Psychometric properties of the intolerance of uncertainty : believability scale
… worriers. Receiver-Operating Characteristic (ROC) analysis showed the IUS-B to be effective in identifying high worriers and may possible be a convenient measure of change in cognition through therapy. Keywords: Intolerance of uncertainty scale, believability Scale, generalized anxiety …
-
Cut-off values and thresholds of allergic reaction during oral food challenge: a retrospective study
… population are lacking. Methods: A retrospective analysis of all the OFCs carried out at the Red Cross War Memorial Children's Hospital, University of Cape Town, from 2015 to 2023 was performed. Data on the type of food used, OFC outcome, the cumulative amount of protein taken, and data from the …
-
The use of HbA1c in predicting excessive fetal growth in women at risk of gestational diabetes
… those without GDM (4.22 vs 3.12 p<0.01). Using ROC analysis, a VAD of 3.98cm achieved a sensitivity of 73.1% and specificity of 72.2% for the later diagnosis of GDM. Women exceeding this threshold were at seven-fold greater odds of GDM. Conclusions These results demonstrate that accelerated …
-
Relationships Among Early Literacy Curriculum Based Measurement and Reading State Criterion Tests Over Time
… 3. This study presents findings of statistical analysis examining the relationship between early literacy benchmark data in kindergarten and Grade 1 and statewide high-stakes achievement tests taken two to seven years later. One hundred thirty kindergarten students, ages five to six in 2002, …
-
Development and Implementation of a New National Warning System for Potato Late Blight in Great Britain
… Smith Period was examined using a back-testing analysis with a historical national-scale, longitudinal outbreak dataset and corresponding weather data. ROC analysis revealed significant regional variation in the ability of the Smith Period to forecast outbreaks. A series of controlled …
-
Characterization of pregnancy-associated glycoproteins and progesterone as a predictor of twins and conceptus loss in high-risk pregnancy Holstein cows
… at 37, 44, and 51 post-AI. Statistical analysis was performed using ANOVA, logistic regression and receiver operation characteristics (ROC) with JMP. Pregnancy loss at day 51 post-AI was greater (P < 0.01) in HR than CON and TW (CON=1.5%; HR=87.5%; TW=12.2%). Concentration of PAG at day …
Page 1 of 3