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Longitudinal MRIs are often used to capture the gradual deterioration of brain structure and function caused by aging or neurological diseases. Analyzing this data via machine learning generally requires a large number of ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Jiahong Ouyang , Qingyu Zhao , Ehsan Adeli , Edith V Sullivan , Adolf Pfefferbaum , Greg Zaharchuk , Kilian M Pohl

Recent works in self-supervised learning have advanced the state-of-the-art by relying on the contrastive learning paradigm, which learns representations by pushing positive pairs, or similar examples from the same class, closer together…

Machine Learning · Computer Science 2022-06-27 Jeff Z. HaoChen , Colin Wei , Adrien Gaidon , Tengyu Ma

Over the years, Machine Learning models have been successfully employed on neuroimaging data for accurately predicting brain age. Deviations from the healthy brain aging pattern are associated to the accelerated brain aging and brain…

Image and Video Processing · Electrical Eng. & Systems 2023-06-23 M. Tanveer , M. A. Ganaie , Iman Beheshti , Tripti Goel , Nehal Ahmad , Kuan-Ting Lai , Kaizhu Huang , Yu-Dong Zhang , Javier Del Ser , Chin-Teng Lin

Contrastive learning, along with its variations, has been a highly effective self-supervised learning method across diverse domains. Contrastive learning measures the distance between representations using cosine similarity and uses…

Machine Learning · Computer Science 2023-10-11 Daniel Rho , TaeSoo Kim , Sooill Park , Jaehyun Park , JaeHan Park

Determining if the brain is developing normally is a key component of pediatric neuroradiology and neurology. Brain magnetic resonance imaging (MRI) of infants demonstrates a specific pattern of development beyond simply myelination. While…

Image and Video Processing · Electrical Eng. & Systems 2021-12-28 Mahdieh Shabanian , Markus Wenzel , John P. DeVincenzo

Magnetic Resonance Imaging (MRI) is an important medical imaging modality, while it requires a long acquisition time. To reduce the acquisition time, various methods have been proposed. However, these methods failed to reconstruct images…

Image and Video Processing · Electrical Eng. & Systems 2021-12-01 Qiaosi Yi , Jinhao Liu , Le Hu , Faming Fang , Guixu Zhang

The age estimation task aims to use facial features to predict the age of people and is widely used in public security, marketing, identification, and other fields. However, the features are mainly concentrated in facial keypoints, and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Yiping Zhang , Yuntao Shou , Tao Meng , Wei Ai , Keqin Li

We introduce supervised contrastive active learning (SCAL) and propose efficient query strategies in active learning based on the feature similarity (featuresim) and principal component analysis based feature-reconstruction error (fre) to…

Machine Learning · Computer Science 2022-08-16 Ranganath Krishnan , Nilesh Ahuja , Alok Sinha , Mahesh Subedar , Omesh Tickoo , Ravi Iyer

Mild cognitive impairment(MCI) is a precursor of Alzheimer's disease(AD), and the detection of MCI is of great clinical significance. Analyzing the structural brain networks of patients is vital for the recognition of MCI. However, the…

Neurons and Cognition · Quantitative Biology 2022-08-19 Heng Kong , Shuqiang Wang

Recent contrastive methods show significant improvement in self-supervised learning in several domains. In particular, contrastive methods are most effective where data augmentation can be easily constructed e.g. in computer vision.…

Machine Learning · Computer Science 2021-12-09 Konstantinos Kallidromitis , Denis Gudovskiy , Kazuki Kozuka , Iku Ohama , Luca Rigazio

Learning robust representations to discriminate cell phenotypes based on microscopy images is important for drug discovery. Drug development efforts typically analyse thousands of cell images to screen for potential treatments. Early works…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Alexis Perakis , Ali Gorji , Samriddhi Jain , Krishna Chaitanya , Simone Rizza , Ender Konukoglu

Brain segmentation from neonatal MRI images is a very challenging task due to large changes in the shape of cerebral structures and variations in signal intensities reflecting the gestational process. In this context, there is a clear need…

Machine Learning · Statistics 2023-09-12 R Valabregue , F Girka , A Pron , F Rousseau , G Auzias

Brain aging involves structural and functional changes and therefore serves as a key biomarker for brain health. Combining structural magnetic resonance imaging (sMRI) and functional magnetic resonance imaging (fMRI) has the potential to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Abd Ur Rehman , Azka Rehman , Muhammad Usman , Abdullah Shahid , Sung-Min Gho , Aleum Lee , Tariq M. Khan , Imran Razzak

We propose a framework using contrastive learning as a pre-training task to perform image classification in the presence of noisy labels. Recent strategies such as pseudo-labeling, sample selection with Gaussian Mixture models, weighted…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Madalina Ciortan , Romain Dupuis , Thomas Peel

Multi-label classification, which involves assigning multiple labels to a single input, has emerged as a key area in both research and industry due to its wide-ranging applications. Designing effective loss functions is crucial for…

Machine Learning · Computer Science 2025-01-06 Alexandre Audibert , Aurélien Gauffre , Massih-Reza Amini

Accurate diagnosis of pediatric brain tumors, starting with histopathology, presents unique challenges for deep learning, including severe data scarcity, class imbalance, and fine-grained morphologic overlap across diagnostically distinct…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Joakim Nguyen , Jian Yu , Jinrui Fang , Nicholas Konz , Tianlong Chen , Sanjay Krishnan , Chandra Krishnan , Ying Ding , Hairong Wang , Ankita Shukla

Brain age prediction based on children's brain MRI is an important biomarker for brain health and brain development analysis. In this paper, we consider the 3D brain MRI volume as a sequence of 2D images and propose a new framework using…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Sheng He , Randy L. Gollub , Shawn N. Murphy , Juan David Perez , Sanjay Prabhu , Rudolph Pienaar , Richard L. Robertson , P. Ellen Grant , Yangming Ou

Electronic Health Record (EHR) data has been of tremendous utility in Artificial Intelligence (AI) for healthcare such as predicting future clinical events. These tasks, however, often come with many challenges when using classical machine…

Machine Learning · Computer Science 2021-04-08 Tingyi Wanyan , Jing Zhang , Ying Ding , Ariful Azad , Zhangyang Wang , Benjamin S Glicksberg

Age estimation is an essential challenge in computer vision. With the advances of convolutional neural networks, the performance of age estimation has been dramatically improved. Existing approaches usually treat age estimation as a…

Computer Vision and Pattern Recognition · Computer Science 2021-06-18 Yi Zhou , Heikki Huttunen , Tapio Elomaa

Contrastive Language-Image Pretraining (CLIP) models excel at understanding image-text relationships but struggle with adapting to new data without forgetting prior knowledge. To address this, models are typically fine-tuned using both new…

Machine Learning · Computer Science 2026-05-06 Ryan King , Gang Li , Bobak Mortazavi , Tianbao Yang
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