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Theoretical computation of cosmological observables is an intensive process, restricting the speed at which cosmological data can be analysed and cosmological models constrained, and therefore limiting research access to those with high…

宇宙学与河外天体物理 · 物理学 2026-03-11 Charlie MacMahon-Gellér , C. Danielle Leonard , Philip Bull , Markus Michael Rau

The development of machine learning models has led to an abundance of datasets containing quantum mechanical (QM) calculations for molecular and material systems. However, traditional training methods for machine learning models are unable…

Deep Neural Networks, particularly Convolutional Neural Networks (ConvNets), have achieved incredible success in many vision tasks, but they usually require millions of parameters for good accuracy performance. With increasing applications…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Yuhuang Hu , Shih-Chii Liu

Deep learning (DL) reconstruction particularly of MRI has led to improvements in image fidelity and reduction of acquisition time. In neuroimaging, DL methods can reconstruct high-quality images from undersampled data. However, it is…

图像与视频处理 · 电气工程与系统科学 2023-09-27 Yuning Du , Yuyang Xue , Rohan Dharmakumar , Sotirios A. Tsaftaris

The main focus of this work is a novel framework for the joint reconstruction and segmentation of parallel MRI (PMRI) brain data. We introduce an image domain deep network for calibrationless recovery of undersampled PMRI data. The proposed…

图像与视频处理 · 电气工程与系统科学 2021-02-03 Aniket Pramanik , Mathews Jacob

Neural networks require a large amount of annotated data to learn. Meta-learning algorithms propose a way to decrease the number of training samples to only a few. One of the most prominent optimization-based meta-learning algorithms is…

机器学习 · 计算机科学 2022-06-14 Kostiantyn Khabarlak

Current deep neural networks (DNNs) can easily overfit to biased training data with corrupted labels or class imbalance. Sample re-weighting strategy is commonly used to alleviate this issue by designing a weighting function mapping from…

机器学习 · 计算机科学 2019-09-30 Jun Shu , Qi Xie , Lixuan Yi , Qian Zhao , Sanping Zhou , Zongben Xu , Deyu Meng

Many concepts have been proposed for meta learning with neural networks (NNs), e.g., NNs that learn to reprogram fast weights, Hebbian plasticity, learned learning rules, and meta recurrent NNs. Our Variable Shared Meta Learning (VSML)…

机器学习 · 计算机科学 2022-03-15 Louis Kirsch , Jürgen Schmidhuber

Purpose: To develop a deep-learning-based image reconstruction framework for reproducible research in MRI. Methods: The BART toolbox offers a rich set of implementations of calibration and reconstruction algorithms for parallel imaging and…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Moritz Blumenthal , Guanxiong Luo , Martin Schilling , H. Christian M. Holme , Martin Uecker

Magnetic resonance imaging (MRI) reconstruction is an active inverse problem which can be addressed by conventional compressed sensing (CS) MRI algorithms that exploit the sparse nature of MRI in an iterative optimization-based manner.…

计算机视觉与模式识别 · 计算机科学 2019-06-13 Yuxiang Dai , Peixian Zhuang

Deep neural networks have been extensively studied for undersampled MRI reconstruction. While achieving state-of-the-art performance, they are trained and deployed specifically for one anatomy with limited generalization ability to another…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Xinwen Liu , Jing Wang , Feng Liu , S. Kevin Zhou

Recently, deep neural networks have greatly advanced undersampled Magnetic Resonance Image (MRI) reconstruction, wherein most studies follow the one-anatomy-one-network fashion, i.e., each expert network is trained and evaluated for a…

图像与视频处理 · 电气工程与系统科学 2022-06-17 Jiangpeng Yan , Chenghui Yu , Hanbo Chen , Zhe Xu , Junzhou Huang , Xiu Li , Jianhua Yao

Recent progress in Machine Unlearning (MU) has introduced solutions for the selective removal of private or sensitive information encoded within deep neural networks. Nonetheless, MU for Multimodal Large Language Models (MLLMs) remains in…

计算与语言 · 计算机科学 2025-05-28 Jiahao Huo , Yibo Yan , Xu Zheng , Yuanhuiyi Lyu , Xin Zou , Zhihua Wei , Xuming Hu

The reconstruction of a high resolution image given a low resolution observation is an ill-posed inverse problem in imaging. Deep learning methods rely on training data to learn an end-to-end mapping from a low-resolution input to a…

图像与视频处理 · 电气工程与系统科学 2023-07-19 Iman Marivani , Evaggelia Tsiligianni , Bruno Cornelis , Nikos Deligiannis

In clinical practice, multi-modal magnetic resonance imaging (MRI) with different contrasts is usually acquired in a single study to assess different properties of the same region of interest in the human body. The whole acquisition process…

图像与视频处理 · 电气工程与系统科学 2022-04-05 Kai Xuan , Lei Xiang , Xiaoqian Huang , Lichi Zhang , Shu Liao , Dinggang Shen , Qian Wang

Image reconstruction from undersampled k-space data has been playing an important role for fast MRI. Recently, deep learning has demonstrated tremendous success in various fields and also shown potential to significantly speed up MR…

图像与视频处理 · 电气工程与系统科学 2019-07-30 Dong Liang , Jing Cheng , Ziwen Ke , Leslie Ying

Deep Learning (DL) methods can reconstruct highly accelerated magnetic resonance imaging (MRI) scans, but they rely on application-specific large training datasets and often generalize poorly to out-of-distribution data. Self-supervised…

图像与视频处理 · 电气工程与系统科学 2026-04-24 Hongze Yu , Jeffrey A. Fessler , Yun Jiang

Magnetic resonance (MR) image re-parameterization refers to the process of generating via simulations of an MR image with a new set of MRI scanning parameters. Different parameter values generate distinct contrast between different tissues,…

图像与视频处理 · 电气工程与系统科学 2024-04-15 Abhijeet Narang , Abhigyan Raj , Mihaela Pop , Mehran Ebrahimi

Machine learning is among the most widely anticipated use cases for near-term quantum computers, however there remain significant theoretical and implementation challenges impeding its scale up. In particular, there is an emerging body of…

量子物理 · 物理学 2023-09-20 Maxwell T. West , Martin Sevior , Muhammad Usman

In recent years, machine learning (ML) based reconstruction has been widely investigated and employed in cardiac magnetic resonance (CMR) imaging. ML-based reconstructions can deliver clinically acceptable image quality under substantially…

图像与视频处理 · 电气工程与系统科学 2024-11-18 Chi Zhang , Michael Loecher , Cagan Alkan , Mahmut Yurt , Shreyas S. Vasanawala , Daniel B. Ennis