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相关论文: Uniform Manifold Approximation with Two-phase Opti…

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Unsupervised Domain Adaptation (UDA) is the task of bridging the domain gap between a labeled source domain, e.g., synthetic data, and an unlabeled target domain. We observe that current UDA methods show inferior results on fine structures…

计算机视觉与模式识别 · 计算机科学 2024-08-30 Linyan Yang , Lukas Hoyer , Mark Weber , Tobias Fischer , Dengxin Dai , Laura Leal-Taixé , Marc Pollefeys , Daniel Cremers , Luc Van Gool

We propose a novel algorithm for supervised dimensionality reduction named Manifold Partition Discriminant Analysis (MPDA). It aims to find a linear embedding space where the within-class similarity is achieved along the direction that is…

机器学习 · 计算机科学 2020-11-24 Yang Zhou , Shiliang Sun

In autonomous driving, data augmentation is commonly used for improving 3D object detection. The most basic methods include insertion of copied objects and rotation and scaling of the entire training frame. Numerous variants have been…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Jungwook Shin , Jaeill Kim , Kyungeun Lee , Hyunghun Cho , Wonjong Rhee

Feature-mapping methods for topology optimization (FMTO) facilitate direct geometry extraction by leveraging high-level geometric descriptions of the designs. However, FMTO often relies solely on Boolean unions, which can restrict the…

计算工程、金融与科学 · 计算机科学 2024-09-05 Rahul Kumar Padhy , Pramod Thombre , Krishnan Suresh , Aaditya Chandrasekhar

Deep learning has substantially advanced pansharpening, achieving impressive fusion quality. However, a prevalent limitation is that conventional deep learning models, which typically rely on training datasets, often exhibit suboptimal…

计算机视觉与模式识别 · 计算机科学 2025-05-19 Haorui Chen , Zeyu Ren , Jiaxuan Ren , Ran Ran , Jinliang Shao , Jie Huang , Liangjian Deng

Manifold learning using deep neural networks been shown to be an effective tool for building sophisticated prior image models that can be applied to noise reduction in low-dose CT. We propose a new iterative CT reconstruction algorithm,…

医学物理 · 物理学 2020-10-20 Matthew Tivnan , J. Webster Stayman

In this paper, we design a novel two-phase unsourced random access (URA) scheme in massive multiple input multiple output (MIMO). In the first phase, we collect a sequence of information bits to jointly acquire the user channel state…

信息论 · 计算机科学 2023-06-28 Jia-Cheng Jiang , Hui-Ming Wang

A robust-to-dynamics optimization (RDO) problem is an optimization problem specified by two pieces of input: (i) a mathematical program (an objective function $f:\mathbb{R}^n\rightarrow\mathbb{R}$ and a feasible set…

最优化与控制 · 数学 2023-11-27 Amir Ali Ahmadi , Oktay Gunluk

In this paper we propose a 2D deep residual Unet with 104 convolutional layers (DR-Unet104) for lesion segmentation in brain MRIs. We make multiple additions to the Unet architecture, including adding the 'bottleneck' residual block to the…

图像与视频处理 · 电气工程与系统科学 2021-05-05 Jordan Colman , Lei Zhang , Wenting Duan , Xujiong Ye

With the increasing availability of high-dimensional data, analysts often rely on exploratory data analysis to understand complex data sets. A key approach to exploring such data is dimensionality reduction, which embeds high-dimensional…

机器学习 · 计算机科学 2024-12-17 Pavlin G. Poličar , Blaž Zupan

Segmentation of ultra-high resolution (UHR) images is a critical task with numerous applications, yet it poses significant challenges due to high spatial resolution and rich fine details. Recent approaches adopt a dual-branch architecture,…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Haopeng Sun , Yingwei Zhang , Lumin Xu , Sheng Jin , Yiqiang Chen

Incremental Structure from Motion (ISfM) has been widely used for UAV image orientation. Its efficiency, however, decreases dramatically due to the sequential constraint. Although the divide-and-conquer strategy has been utilized for…

计算机视觉与模式识别 · 计算机科学 2023-02-08 San Jiang , Qingquan Li , Wanshou Jiang , Wu Chen

In recent years, many research achievements are made in the medical image fusion field. Fusion is basically extraction of best of inputs and conveying it to the output. Medical Image fusion means that several of various modality image…

计算机视觉与模式识别 · 计算机科学 2020-07-28 T. Deepika , G. Karpaga Kannan

Fitting an unknown number of hyperplanes to data is a fundamental yet challenging problem in machine learning, characterized by its non-convexity, non-differentiability, and unknown model order. Existing approaches often struggle with local…

机器学习 · 计算机科学 2026-05-28 Zhiqin Cheng , Yu Zhan , Mingjin Zhang , Lingbo Liu , Liang Lin

We explore two primary classes of approaches to dimensionality reduction (DR): Independent Dimensionality Reduction (IDR) and Simultaneous Dimensionality Reduction (SDR). In IDR methods, of which Principal Components Analysis is a…

机器学习 · 统计学 2024-10-28 Eslam Abdelaleem , Ahmed Roman , K. Michael Martini , Ilya Nemenman

Magnetic resonance imaging (MRI) motion artifacts can seriously affect clinical diagnostics, making it challenging to interpret images accurately. Existing methods for eliminating motion artifacts struggle to retain fine structural details…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Zhongyu Mai , Zewei Zhan , Hanyu Guo , Yulang Huang , Weifeng Su

The problem of identifying geometric structure in data is a cornerstone of (unsupervised) learning. As a result, Geometric Representation Learning has been widely applied across scientific and engineering domains. In this work, we…

机器学习 · 计算机科学 2025-06-03 Imran Nasim , Melanie Weber

A new dimension reduction (DR) method for data sets is proposed by autonomous deforming of data manifolds. The deformation is guided by the proposed deforming vector field, which is defined by two kinds of virtual interactions between data…

机器学习 · 计算机科学 2021-10-22 Xiaodong Zhuang

This paper tackles the challenging problem of gridless two-dimensional (2D) direction-of-arrival (DOA) estimation for a uniform circular array (UCA) from a single snapshot of data. Conventional gridless methods often fail in this scenario…

信号处理 · 电气工程与系统科学 2025-10-22 Salar Nouri

Manifold learning (ML) aims to seek low-dimensional embedding from high-dimensional data. The problem is challenging on real-world datasets, especially with under-sampling data, and we find that previous methods perform poorly in this case.…

机器学习 · 计算机科学 2022-07-27 Zelin Zang , Siyuan Li , Di Wu , Ge Wang , Lei Shang , Baigui Sun , Hao Li , Stan Z. Li