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Manifold learning is a fundamental task at the core of data analysis and visualisation. It aims to capture the simple underlying structure of complex high-dimensional data by preserving pairwise dissimilarities in low-dimensional…

机器学习 · 计算机科学 2026-03-13 Thomas Dagès , Simon Weber , Daniel Cremers , Ron Kimmel

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

The knowledge that data lies close to a particular submanifold of the ambient Euclidean space may be useful in a number of ways. For instance, one may want to automatically mark any point far away from the submanifold as an outlier or to…

Riemannian manifolds have been widely employed for video representations in visual classification tasks including video-based face recognition. The success mainly derives from learning a discriminant Riemannian metric which encodes the…

计算机视觉与模式识别 · 计算机科学 2017-01-10 Zhiwu Huang , Ruiping Wang , Shiguang Shan , Luc Van Gool , Xilin Chen

The optical properties of particulate-matter aerosols, within the context of exoplanet and brown dwarf atmospheres, are compared using three different models: Mie theory, Modified Mean Field (MMF) Theory, and Discrete Dipole Approximation…

地球与行星天体物理 · 物理学 2023-12-06 Matt G. Lodge , Hannah R. Wakeford , Zoe M. Leinhardt

Urban region function recognition plays a vital character in monitoring and managing the limited urban areas. Since urban functions are complex and full of social-economic properties, simply using remote sensing~(RS) images equipped with…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Wenjia Xu , Jiuniu Wang , Yirong Wu

Recent research into buffet in the transonic flow regime has been focused on a limited number of proprietary airfoil geometries and has mainly considered parametric variations in Mach number and angle of attack. In contrast, relatively…

Deep neural networks have become the main work horse for many tasks involving learning from data in a variety of applications in Science and Engineering. Traditionally, the input to these networks lie in a vector space and the operations…

计算机视觉与模式识别 · 计算机科学 2018-09-24 Rudrasis Chakraborty , Jose Bouza , Jonathan Manton , Baba C. Vemuri

Matching objectives underpin the success of modern generative models and rely on constructing conditional paths that transform a source distribution into a target distribution. Despite being a fundamental building block, conditional paths…

In several problems involving fluid flows, Computational Fluid Dynamics (CFD) provides detailed quantitative information, and often allows the designer to successfully optimize the system, by minimizing a cost function. Sometimes, however,…

流体动力学 · 物理学 2023-12-19 Andrea Schillaci , Kazuto Hasegawa , Carlotta Pipolo , Giacomo Boracchi , Maurizio Quadrio

Unsigned distance fields (UDFs) are widely used in 3D deep learning due to their ability to represent shapes with arbitrary topology. While prior work has largely focused on learning UDFs from point clouds or multi-view images, extracting…

计算机视觉与模式识别 · 计算机科学 2025-11-07 Xuhui Chen , Fei Hou , Wencheng Wang , Hong Qin , Ying He

This paper describes an interdisciplinary approach to geometry modeling of geospatial boundaries. The objective is to extract surfaces from irregular spatial patterns using differential geometry and obtain coherent directional predictions…

计算工程、金融与科学 · 计算机科学 2020-06-09 Raymond Leung

This paper proposes a novel paradigm for machine learning that moves beyond traditional parameter optimization. Unlike conventional approaches that search for optimal parameters within a fixed geometric space, our core idea is to treat the…

机器学习 · 计算机科学 2025-10-31 Di Zhang

Manifold learning techniques have become increasingly valuable as data continues to grow in size. By discovering a lower-dimensional representation (embedding) of the structure of a dataset, manifold learning algorithms can substantially…

神经与进化计算 · 计算机科学 2020-01-31 Andrew Lensen , Mengjie Zhang , Bing Xue

Although Deep Learning (DL) has achieved success in complex Artificial Intelligence (AI) tasks, it suffers from various notorious problems (e.g., feature redundancy, and vanishing or exploding gradients), since updating parameters in…

机器学习 · 计算机科学 2023-02-17 Yanhong Fei , Xian Wei , Yingjie Liu , Zhengyu Li , Mingsong Chen

Recent advances in diffusion models have demonstrated their remarkable ability to capture complex image distributions, but the geometric properties of the learned data manifold remain poorly understood. We address this gap by introducing a…

机器学习 · 计算机科学 2025-10-13 Simone Azeglio , Arianna Di Bernardo

Wind speed at sea surface is a key quantity for a variety of scientific applications and human activities. Due to the non-linearity of the phenomenon, a complete description of such variable is made infeasible on both the small scale and…

机器学习 · 计算机科学 2024-10-28 Matteo Zambra , Nicolas Farrugia , Dorian Cazau , Alexandre Gensse , Ronan Fablet

Accurate machine-learning models for aerodynamic prediction are essential for accelerating shape optimization, yet remain challenging to develop for complex three-dimensional configurations due to the high cost of generating training data.…

机器学习 · 计算机科学 2026-04-21 Yunjia Yang , Babak Gholami , Caglar Gurbuz , Mohammad Rashed , Nils Thuerey

Airborne acquisition and on-road mobile mapping provide complementary 3D information of an urban landscape: the former acquires roof structures, ground, and vegetation at a large scale, but lacks the facade and street-side details, while…

计算机视觉与模式识别 · 计算机科学 2016-09-07 András Bódis-Szomorú , Hayko Riemenschneider , Luc Van Gool

For manifold learning, it is assumed that high-dimensional sample/data points are embedded on a low-dimensional manifold. Usually, distances among samples are computed to capture an underlying data structure. Here we propose a metric…

机器学习 · 计算机科学 2019-09-20 Fenglei Fan , Ziyu Su , Yueyang Teng , Ge Wang