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Due to the substantial computational cost, training state-of-the-art deep neural networks for large-scale datasets often requires distributed training using multiple computation workers. However, by nature, workers need to frequently…

机器学习 · 计算机科学 2018-02-21 Yusuke Tsuzuku , Hiroto Imachi , Takuya Akiba

The design of multitarget rendezvous missions requires a method to quickly and accurately approximate the optimal transfer between any two rendezvous targets. In this paper, a deep neural network (DNN)-based method is proposed for quickly…

最优化与控制 · 数学 2019-02-26 Yue-he Zhu , Ya-zhong Luo

Deep Unfolding Network-based methods have emerged as effective solutions for multi-source image fusion by combining model-driven iterative optimization with data-driven deep learning. However, most existing deep unfolding image fusion…

图像与视频处理 · 电气工程与系统科学 2026-05-04 Ge Luo , Jun-Jie Huang , Qi Yu , Tianrui Liu , Ke Liang , Yuming Xiang , Wentao Zhao , Xinwang Liu , Meng Wang

Massive multiple-input multiple-output (MIMO) communication systems have a huge potential both in terms of data rate and energy efficiency, although channel estimation becomes challenging for a large number of antennas. Using a physical…

信号处理 · 电气工程与系统科学 2021-12-10 Taha Yassine , Luc Le Magoarou

Incomplete point clouds captured by 3D sensors often result in the loss of both geometric and semantic information. Most existing point cloud completion methods are built on rotation-variant frameworks trained with data in canonical poses,…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Zhifan Ni , Eckehard Steinbach

The goal of this thesis is to improve our understanding of the internal mechanisms by which deep artificial neural networks create meaningful representations and are able to generalize. We focus on the challenge of characterizing the…

机器学习 · 计算机科学 2025-10-29 Diego Doimo

Recently, researchers proposed various low-precision gradient compression, for efficient communication in large-scale distributed optimization. Based on these work, we try to reduce the communication complexity from a new direction. We…

机器学习 · 计算机科学 2019-01-25 Jianqiao Wangni , Ke Li , Jianbo Shi , Jitendra Malik

Convolutional Neural Networks (CNN) offer state of the art performance in various computer vision tasks. Many of those tasks require different subtypes of affine invariances (scale, rotational, translational) to image transformations.…

计算机视觉与模式识别 · 计算机科学 2023-10-13 Facundo Manuel Quiroga , Franco Ronchetti , Laura Lanzarini , Aurelio Fernandez-Bariviera

The k Nearest Neighbor (kNN) query over moving objects on road networks is essential for location-based services. Recently, this problem has been studied under road networks with distance as the metric, overlooking fluctuating travel costs.…

数据库 · 计算机科学 2025-12-30 Mingjin Tao , Kailin Jiao , Yawen Li , Wei Liu , Ziqiang Yu

Deep learning algorithms have obtained great success in semantic segmentation of very high-resolution (VHR) images. Nevertheless, training these models generally requires a large amount of accurate pixel-wise annotations, which is very…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Yonghao Xu , Pedram Ghamisi

In this paper, the flexibility, versatility and predictive power of kernel regression are combined with now lavishly available network data to create regression models with even greater predictive performances. Building from previous work…

机器学习 · 统计学 2020-11-05 E. Pei , E. Fokoué

Principal component analysis, dictionary learning, and auto-encoders are all unsupervised methods for learning representations from a large amount of training data. In all these methods, the higher the dimensions of the input data, the…

机器学习 · 计算机科学 2019-08-27 Thomas Chang , Bahareh Tolooshams , Demba Ba

In the field of resource-constrained robots and the need for effective place recognition in multi-robotic systems, this article introduces RecNet, a novel approach that concurrently addresses both challenges. The core of RecNet's…

机器人学 · 计算机科学 2024-10-04 Nikolaos Stathoulopoulos , Mario A. V. Saucedo , Anton Koval , George Nikolakopoulos

Dense pixelwise prediction such as semantic segmentation is an up-to-date challenge for deep convolutional neural networks (CNNs). Many state-of-the-art approaches either tackle the loss of high-resolution information due to pooling in the…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Lingni Ma , Jörg Stückler , Tao Wu , Daniel Cremers

We present a novel and flexible architecture for point cloud segmentation with dual-representation iterative learning. In point cloud processing, different representations have their own pros and cons. Thus, finding suitable ways to…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Maosheng Ye , Shuangjie Xu , Tongyi Cao , Qifeng Chen

Recent work has shown that convolutional neural networks (CNNs) can be used to estimate optical flow with high quality and fast runtime. This makes them preferable for real-world applications. However, such networks require very large…

计算机视觉与模式识别 · 计算机科学 2018-08-21 Osama Makansi , Eddy Ilg , Thomas Brox

Magnetic resonance (MR) image acquisition is an inherently prolonged process, whose acceleration has long been the subject of research. This is commonly achieved by obtaining multiple undersampled images, simultaneously, through parallel…

图像与视频处理 · 电气工程与系统科学 2021-06-15 Chun-Mei Feng , Zhanyuan Yang , Huazhu Fu , Yong Xu , Jian Yang , Ling Shao

We propose in this work the gradient-enhanced deep neural networks (DNNs) approach for function approximations and uncertainty quantification. More precisely, the proposed approach adopts both the function evaluations and the associated…

机器学习 · 计算机科学 2022-11-09 Xiaodong Feng , Li Zeng

We present OctNet, a representation for deep learning with sparse 3D data. In contrast to existing models, our representation enables 3D convolutional networks which are both deep and high resolution. Towards this goal, we exploit the…

计算机视觉与模式识别 · 计算机科学 2017-04-11 Gernot Riegler , Ali Osman Ulusoy , Andreas Geiger

Knowledge distillation (KD) has become a prevalent technique for compressing large language models (LLMs). Existing KD methods are constrained by the need for identical tokenizers (i.e., vocabularies) between teacher and student models,…

计算与语言 · 计算机科学 2025-01-22 Xiao Cui , Mo Zhu , Yulei Qin , Liang Xie , Wengang Zhou , Houqiang Li