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To have a superior generalization, a deep learning neural network often involves a large size of training sample. With increase of hidden layers in order to increase learning ability, neural network has potential degradation in accuracy.…

机器学习 · 计算机科学 2019-01-01 Lianfa Li , Ying Fang , Jun Wu , Jinfeng Wang

Text-to-image synthesis has witnessed remarkable advancements in recent years. Many attempts have been made to adopt text-to-image models to support multiple tasks. However, existing approaches typically require resource-intensive…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Ruchika Chavhan , Abhinav Mehrotra , Malcolm Chadwick , Alberto Gil Ramos , Luca Morreale , Mehdi Noroozi , Sourav Bhattacharya

Hyperspectral unmixing is the process of determining the presence of individual materials and their respective abundances from an observed pixel spectrum. Unmixing is a fundamental process in hyperspectral image analysis, and is growing in…

图像与视频处理 · 电气工程与系统科学 2024-08-15 Jade Preston , William Basener

Mixture models are widely used in modeling heterogeneous data populations. A standard approach of mixture modeling assumes that the mixture component takes a parametric kernel form. In many applications, making parametric assumptions on the…

统计方法学 · 统计学 2026-03-06 Yilei Zhang , Yun Wei , Aritra Guha , XuanLong Nguyen

In spite of finite dimension ReLU neural networks being a consistent factor behind recent deep learning successes, a theory of feature learning in these models remains elusive. Currently, insightful theories still rely on assumptions…

机器学习 · 计算机科学 2025-04-01 Devon Jarvis , Richard Klein , Benjamin Rosman , Andrew M. Saxe

The objective of pansharpening and hypersharpening is to accurately combine a high-resolution panchromatic (PAN) image with a low-resolution multispectral (MS) or hyperspectral (HS) image, respectively. Unfolding fusion methods integrate…

图像与视频处理 · 电气工程与系统科学 2024-09-05 Ivan Pereira-Sánchez , Eloi Sans , Julia Navarro , Joan Duran

In hyperspectral imaging, spectral unmixing aims at decomposing the image into a set of reference spectral signatures corresponding to the materials present in the observed scene and their relative proportions in every pixel. While a linear…

图像与视频处理 · 电气工程与系统科学 2020-12-02 Lucas Drumetz , Jocelyn Chanussot , Christian Jutten

Applying convolutional neural networks to large images is computationally expensive because the amount of computation scales linearly with the number of image pixels. We present a novel recurrent neural network model that is capable of…

机器学习 · 计算机科学 2014-06-25 Volodymyr Mnih , Nicolas Heess , Alex Graves , Koray Kavukcuoglu

The hyperspectral pixel unmixing aims to find the underlying materials (endmembers) and their proportions (abundances) in pixels of a hyperspectral image. This work extends the Latent Dirichlet Variational Autoencoder (LDVAE) pixel unmixing…

计算机视觉与模式识别 · 计算机科学 2024-05-27 Soham Chitnis , Kiran Mantripragada , Faisal Z. Qureshi

We present neural mixture distributional regression (NMDR), a holistic framework to estimate complex finite mixtures of distributional regressions defined by flexible additive predictors. Our framework is able to handle a large number of…

统计计算 · 统计学 2020-10-15 David Rügamer , Florian Pfisterer , Bernd Bischl

Hyper-spectral data can be analyzed to recover physical properties at large planetary scales. This involves resolving inverse problems which can be addressed within machine learning, with the advantage that, once a relationship between…

应用统计 · 统计学 2015-12-31 Antoine Deleforge , Florence Forbes , Sileye Ba , Radu Horaud

Data-driven modeling of human motions is ubiquitous in computer graphics and computer vision applications, such as synthesizing realistic motions or recognizing actions. Recent research has shown that such problems can be approached by…

图形学 · 计算机科学 2019-08-21 He Wang , Edmond S. L. Ho , Hubert P. H. Shum , Zhanxing Zhu

In this paper, we develop a Bayesian multiscale approach based on a multiscale finite element method. Because of scale disparity in many multiscale applications, computational models can not resolve all scales. Various subgrid models are…

数值分析 · 数学 2017-02-13 Y. Efendiev , W. T. Leung , S. W. Cheung , N. Guha , V. H. Hoang , B. Mallick

Understanding and predicting microstructure evolution is fundamental to materials science, as it governs the resulting properties and performance of materials. Traditional simulation methods, such as phase-field models, offer high-fidelity…

机器学习 · 计算机科学 2026-02-24 Michael Trimboli , Mohammed Alsubaie , Sirani M. Perera , Ke-Gang Wang , Xianqi Li

Hyperspectral remote sensing is a prominent research topic in data processing. Most of the spectral unmixing algorithms are developed by adopting the linear mixing models. Nonnegative matrix factorization (NMF) and its developments are used…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Sara Khoshsokhan , Roozbeh Rajabi , Hadi Zayyani

The hyperspectral image (HSI) unmixing task is essentially an inverse problem, which is commonly solved by optimization algorithms under a predefined (non-)linear mixture model. Although these optimization algorithms show impressive…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Chao Zhou

Multivariate time series data provide a robust framework for future predictions by leveraging information across multiple dimensions, ensuring broad applicability in practical scenarios. However, their high dimensionality and mixing…

机器学习 · 计算机科学 2024-11-28 Xuanbing Zhu , Dunbin Shen , Zhongwen Rao , Huiyi Ma , Yingguang Hao , Hongyu Wang

Recurrent neural networks and Transformers have recently dominated most applications in hyperspectral (HS) imaging, owing to their capability to capture long-range dependencies from spectrum sequences. However, despite the success of these…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Jing Yao , Danfeng Hong , Chenyu Li , Jocelyn Chanussot

Recent approaches build on implicit neural representations (INRs) to propose generative models over function spaces. However, they are computationally costly when dealing with inference tasks, such as missing data imputation, or directly…

机器学习 · 计算机科学 2023-07-21 Batuhan Koyuncu , Pablo Sanchez-Martin , Ignacio Peis , Pablo M. Olmos , Isabel Valera

Hierarchical data with multiple observations per group is ubiquitous in empirical sciences and is often analyzed using mixed-effects regression. In such models, Bayesian inference gives an estimate of uncertainty but is analytically…

机器学习 · 计算机科学 2026-02-05 Alex Kipnis , Marcel Binz , Eric Schulz