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The receiver operating characteristic (ROC) curve is an important graphic tool for evaluating a test in a wide range of disciplines. While useful, an ROC curve can cross the chance line, either by having an S-shape or a hook at the extreme…

Methodology · Statistics 2024-07-02 Soutik Ghosal , Zhen Chen

In diagnostic studies, researchers frequently encounter imperfect reference standards with some misclassified labels. Treating these as gold standards can bias receiver operating characteristic (ROC) curve analysis. To address this issue,…

Methodology · Statistics 2025-02-13 Yifan Sun , Peijun Sang , Qinglong Tian , Pengfei Li

Accurately discriminating progressive stages of Alzheimer's Disease (AD) is crucial for early diagnosis and prevention. It often involves multiple imaging modalities to understand the complex pathology of AD, however, acquiring a complete…

Image and Video Processing · Electrical Eng. & Systems 2025-03-06 Seunghun Baek , Jaeyoon Sim , Guorong Wu , Won Hwa Kim

The area under the ROC curve (AUC) is the standard measure of a biomarker's discriminatory accuracy; however, naive AUC estimates can be misleading when validation cohorts differ from the intended target population. Such covariate shifts…

Methodology · Statistics 2025-11-20 Jiajun Liu , Guangcai Mao , Xiaofei Wang

Retinal optical coherence tomography (OCT) images are the biomarkers for neurodegenerative diseases, which are rising in prevalence. Early detection of Alzheimer's disease using retinal OCT is a primary challenging task. This work utilizes…

Image and Video Processing · Electrical Eng. & Systems 2025-08-19 Siva Manohar Reddy Kesu , Neelam Sinha , Hariharan Ramasangu , Thomas Gregor Issac

The Receiver Operating Characteristic (ROC) surface is a generalization of ROC curve and is widely used for assessment of the accuracy of diagnostic tests on three categories. A complication called the verification bias, meaning that not…

Applications · Statistics 2018-03-20 Rui Zhu , Subhashis Ghosal

Introduction- This paper mainly describes a way to detect with high accuracy patients with early-stage Alzheimer's disease (ES-AD) versus healthy control (HC) subjects, from datasets built with handwriting and drawing task records. Method-…

Machine Learning · Computer Science 2021-03-19 Alain Petrowski

The current methods for diagnosing Alzheimer Disease using Magnetic Resonance Imaging (MRI) have significant limitations. Many previous studies used 2D Transformers to analyze individual brain slices independently, potentially losing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Juan A. Castro-Silva , Maria N. Moreno Garcia , Diego H. Peluffo-Ordoñez

Alterations in retinal layer thickness, measurable using Optical Coherence Tomography (OCT), have been associated with neurodegenerative diseases such as Alzheimer's disease (AD). While previous studies have mainly focused on segmented…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Yasemin Turkan , F. Boray Tek , M. Serdar Nazlı , Öykü Eren

Alzheimer's is a brain disease that gets worse over time and affects memory, thinking, and behavior. Alzheimer's disease (AD) can be treated and managed if it is diagnosed early, which can slow the progression of symptoms and improve…

Image and Video Processing · Electrical Eng. & Systems 2024-01-09 Taymaz Akan , Sait Alp , Mohammad A. N Bhuiyanb

Ordinal learning (OL) is a type of machine learning models with broad utility in health care applications such as diagnosis of different grades of a disease (e.g., mild, modest, severe) and prediction of the speed of disease progression…

Machine Learning · Computer Science 2023-12-18 Lujia Wang , Hairong Wang , Yi Su , Fleming Lure , Jing Li

Object detection (OD) in computer vision has made significant progress in recent years, transitioning from closed-set labels to open-vocabulary detection (OVD) based on large-scale vision-language pre-training (VLP). However, current…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Yiyang Yao , Peng Liu , Tiancheng Zhao , Qianqian Zhang , Jiajia Liao , Chunxin Fang , Kyusong Lee , Qing Wang

When sufficient labeled data are available, classical criteria based on Receiver Operating Characteristic (ROC) or Precision-Recall (PR) curves can be used to compare the performance of un-supervised anomaly detection algorithms. However ,…

Machine Learning · Statistics 2016-07-06 Nicolas Goix

Receiver operating characteristic (ROC) curve is an informative tool in binary classification and Area Under ROC Curve (AUC) is a popular metric for reporting performance of binary classifiers. In this paper, first we present a…

Machine Learning · Computer Science 2021-09-14 Khashayar Namdar , Masoom A. Haider , Farzad Khalvati

Early detection of Alzheimer's disease's precursor stages is imperative for significantly enhancing patient outcomes and quality of life. This challenge is tackled through a semi-supervised multi-modal diagnosis framework. In particular, we…

Machine Learning · Computer Science 2024-03-20 Angelica I. Aviles-Rivero , Chun-Wun Cheng , Zhongying Deng , Zoe Kourtzi , Carola-Bibiane Schönlieb

While the area under the ROC curve is perhaps the most common measure that is used to rank the relative performance of different binary classifiers, longstanding field folklore has noted that it can be a measure that ill-captures the…

Machine Learning · Computer Science 2024-12-19 Christopher Ratigan , Lenore Cowen

The ROC-SVM, originally proposed by Rakotomamonjy, directly maximizes the area under the ROC curve (AUC) and has become an attractive alternative of the conventional binary classification under the presence of class imbalance. However, its…

Machine Learning · Computer Science 2025-11-26 Gimun Bae , Seung Jun Shin

To assess the classification accuracy of a continuous diagnostic result, the receiver operating characteristic (ROC) curve is commonly used in applications. The partial area under the ROC curve (pAUC) is one of widely accepted summary…

Applications · Statistics 2011-03-11 Hung Hung , Chin-Tsang Chiang

Throughout science and technology, receiver operating characteristic (ROC) curves and associated area under the curve (AUC) measures constitute powerful tools for assessing the predictive abilities of features, markers and tests in binary…

Machine Learning · Statistics 2021-06-25 Tilmann Gneiting , Eva-Maria Walz

Confirming Alzheimer's disease (AD) typically relies on positron emission tomography (PET), which remains costly and invasive, motivating the use of structural MRI-based prescreening. Deep learning on non-Euclidean manifolds, particularly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Geonwoo Baek , Ikbeom Jang