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Estimating a representative and discriminative brain network atlas (BNA) is a nascent research field in mapping a population of brain networks in health and disease. Although limited, existing BNA estimation methods have several…

机器学习 · 计算机科学 2020-09-24 Islem Mhiri , Mohamed Ali Mahjoub , Islem Rekik

With huge amounts of training data, deep learning has made great breakthroughs in many artificial intelligence (AI) applications. However, such large-scale data sets present computational challenges, requiring training to be distributed on…

分布式、并行与集群计算 · 计算机科学 2018-11-01 Shaohuai Shi , Qiang Wang , Xiaowen Chu , Bo Li

In the field of multimedia, single image deraining is a basic pre-processing work, which can greatly improve the visual effect of subsequent high-level tasks in rainy conditions. In this paper, we propose an effective algorithm, called…

计算机视觉与模式识别 · 计算机科学 2020-08-07 Cong Wang , Yutong Wu , Zhixun Su , Junyang Chen

Self-attention mechanisms are commonly included in a convolutional neural networks to achieve an improved efficiency performance balance. However, adding self-attention mechanisms adds additional hyperparameters to tune for the application…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Andre Hryniowski , Alexander Wong

Non-linear dimensionality reduction can be performed by \textit{manifold learning} approaches, such as Stochastic Neighbour Embedding (SNE), Locally Linear Embedding (LLE) and Isometric Feature Mapping (ISOMAP). These methods aim to produce…

机器学习 · 统计学 2021-12-09 Theodoulos Rodosthenous , Vahid Shahrezaei , Marina Evangelou

Unsupervised dimensionality reduction is one of the commonly used techniques in the field of high dimensional data recognition problems. The deep autoencoder network which constrains the weights to be non-negative, can learn a low…

计算机视觉与模式识别 · 计算机科学 2020-09-18 Anyong Qin , Zhaowei Shang , Zhuolin Tan , Taiping Zhang , Yuan Yan Tang

Unsupervised image representations have significantly reduced the gap with supervised pretraining, notably with the recent achievements of contrastive learning methods. These contrastive methods typically work online and rely on a large…

计算机视觉与模式识别 · 计算机科学 2021-01-11 Mathilde Caron , Ishan Misra , Julien Mairal , Priya Goyal , Piotr Bojanowski , Armand Joulin

Learning unknown stochastic differential equations (SDEs) from observed data is a significant and challenging task with applications in various fields. Current approaches often use neural networks to represent drift and diffusion functions,…

机器学习 · 计算机科学 2024-06-21 Aiqing Zhu , Qianxiao Li

We consider the use of deep learning for covariance estimation. We propose to globally learn a neural network that will then be applied locally at inference time. Leveraging recent advancements in self-supervised foundational models, we…

信号处理 · 电气工程与系统科学 2024-03-14 Tzvi Diskin , Ami Wiesel

We design deep neural networks (DNNs) and corresponding networks' splittings to distribute DNNs' workload to camera sensors and a centralized aggregator on head mounted devices to meet system performance targets in inference accuracy and…

机器学习 · 计算机科学 2022-04-12 Xin Dong , Barbara De Salvo , Meng Li , Chiao Liu , Zhongnan Qu , H. T. Kung , Ziyun Li

Diffusion models are gaining widespread use in cutting-edge image, video, and audio generation. Score-based diffusion models stand out among these methods, necessitating the estimation of score function of the input data distribution. In…

机器学习 · 计算机科学 2024-05-24 Fangzhao Zhang , Mert Pilanci

Sudden Unexpected Death in Epilepsy (SUDEP) and acute ischemic stroke are life-threatening conditions involving complex interactions across cortical, brainstem, and autonomic systems. We present a unified geometric-stochastic multimodal…

机器学习 · 计算机科学 2025-12-10 Preksha Girish , Rachana Mysore , Mahanthesha U , Shrey Kumar , Misbah Fatimah Annigeri , Tanish Jain

Time series forecasting is an extensively studied subject in statistics, economics, and computer science. Exploration of the correlation and causation among the variables in a multivariate time series shows promise in enhancing the…

机器学习 · 计算机科学 2021-04-22 Chao Shang , Jie Chen , Jinbo Bi

Motivated by performance optimization of large-scale graph processing systems that distribute the graph across multiple machines, we consider the balanced graph partitioning problem. Compared to the previous work, we study the…

数据结构与算法 · 计算机科学 2019-02-19 Dmitrii Avdiukhin , Sergey Pupyrev , Grigory Yaroslavtsev

We introduce a framework for joint grounded scene graph - image generation, a challenging task involving high-dimensional, multi-modal structured data. To effectively model this complex joint distribution, we adopt a factorized approach:…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Bicheng Xu , Qi Yan , Renjie Liao , Lele Wang , Leonid Sigal

To alleviate the cost of collecting and annotating large-scale point cloud datasets, we propose an unsupervised learning approach to learn features from unlabeled point cloud "3D object" dataset by using part contrasting and object…

计算机视觉与模式识别 · 计算机科学 2019-08-14 Ling Zhang , Zhigang Zhu

In recent years, Graph Neural Network (GNN) based models have shown promising results in simulating physics of complex systems. However, training dedicated graph network based physics simulators can be costly, as most models are confined to…

机器学习 · 计算机科学 2025-02-12 Siqi Shen , Yu Liu , Daniel Biggs , Omar Hafez , Jiandong Yu , Wentao Zhang , Bin Cui , Jiulong Shan

Training deep reinforcement learning agents on environments with multiple levels / scenes from the same task, has become essential for many applications aiming to achieve generalization and domain transfer from simulation to the real world.…

机器学习 · 计算机科学 2021-02-16 Jaskirat Singh , Liang Zheng

In this paper we analyze the behaviour of the stochastic gradient descent (SGD), a widely used method in supervised learning for optimizing neural network weights via a minimization of non-convex loss functions. Since the pioneering work of…

机器学习 · 计算机科学 2025-05-13 Davide Barbieri , Matteo Bonforte , Peio Ibarrondo

We develop a neural network architecture which, trained in an unsupervised manner as a denoising diffusion model, simultaneously learns to both generate and segment images. Learning is driven entirely by the denoising diffusion objective,…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Xin Yuan , Michael Maire