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相关论文: A Copula-Guided Temporal Dependency Method for Mul…

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Hyperspectral image classification presents challenges due to spectral redundancy and complex spatial-spectral dependencies. This paper proposes a novel framework, DCT-Mamba3D, for hyperspectral image classification. DCT-Mamba3D…

计算机视觉与模式识别 · 计算机科学 2025-02-05 Weijia Cao , Xiaofei Yang , Yicong Zhou , Zheng Zhang

Statistical independence and conditional independence are two fundamental concepts in statistics and machine learning. Copula Entropy is a mathematical concept defined by Ma and Sun for multivariate statistical independence measuring and…

统计计算 · 统计学 2021-03-30 Jian Ma

The abundant sequential documents such as online archival, social media and news feeds are streamingly updated, where each chunk of documents is incorporated with smoothly evolving yet dependent topics. Such digital texts have attracted…

信息检索 · 计算机科学 2021-06-28 Jinjin Guo , Longbing Cao , Zhiguo Gong

Remote sensing images are frequently obscured by cloud cover, posing significant challenges to data integrity and reliability. Effective cloud detection requires addressing both short-range spatial redundancies and long-range atmospheric…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Tianxiang Xue , Jiayi Zhao , Jingsheng Li , Changlu Chen , Kun Zhan

MRI synthesis promises to mitigate the challenge of missing MRI modality in clinical practice. Diffusion model has emerged as an effective technique for image synthesis by modelling complex and variable data distributions. However, most…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Lan Jiang , Ye Mao , Xi Chen , Xiangfeng Wang , Chao Li

In this paper, we present XST-GCNN (eXplainable Spatio-Temporal Graph Convolutional Neural Network), a novel architecture for processing heterogeneous and irregular Multivariate Time Series (MTS) data. Our approach captures temporal and…

机器学习 · 计算机科学 2024-11-05 Óscar Escudero-Arnanz , Cristina Soguero-Ruiz , Antonio G. Marques

We introduce CopFITi, a copula model for probabilistic forecasting of irregular multivariate time series (IMTS). Our model combines the expressivity of normalizing flows for univariate marginals with the consistency and flexibility of a…

机器学习 · 计算机科学 2026-05-25 Christian Klötergens , Tom Hanika , Lars Schmidt-Thieme , Vijaya Krishna Yalavarthi

Spatiotemporal learning has become a pivotal technique to enable urban intelligence. Traditional spatiotemporal models mostly focus on a specific task by assuming a same distribution between training and testing sets. However, given that…

机器学习 · 计算机科学 2025-01-16 Zhongchao Yi , Zhengyang Zhou , Qihe Huang , Yanjiang Chen , Liheng Yu , Xu Wang , Yang Wang

We establish time-resolved high harmonic generation (tr-HHG) as a powerful spectroscopy for photoinduced dynamics in strongly correlated materials through a detailed investigation of the insulator-to-metal transitions in vanadium dioxide.…

We propose and demonstrate a joint model of anatomical shapes, image features and clinical indicators for statistical shape modeling and medical image analysis. The key idea is to employ a copula model to separate the joint dependency…

图像与视频处理 · 电气工程与系统科学 2019-09-10 Bernhard Egger , Markus D. Schirmer , Florian Dubost , Marco J. Nardin , Natalia S. Rost , Polina Golland

Providing quantitative interpretation of coherent nonlinear microscopy images, such as third-harmonic generation (THG), is generally hampered by the complex phase-matching conditions, especially in the presence of sample linear…

光学 · 物理学 2026-03-09 Mohammad Reza Farhadinia , Nicolas Olivier

Monocular video human mesh recovery faces fundamental challenges in maintaining metric consistency and temporal stability due to inherent depth ambiguities and scale uncertainties. While existing methods rely primarily on RGB features and…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Jiaxin Cen , Xudong Mao , Guanghui Yue , Wei Zhou , Ruomei Wang , Fan Zhou , Baoquan Zhao

Text-to-video diffusion models are notoriously limited in their ability to model temporal aspects such as motion, physics, and dynamic interactions. Existing approaches address this limitation by retraining the model or introducing external…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Ariel Shaulov , Itay Hazan , Lior Wolf , Hila Chefer

The anomaly detection method presented by this paper has a special feature: it does not only indicate whether an observation is anomalous or not but also tells what exactly makes an anomalous observation unusual. Hence, it provides support…

机器学习 · 计算机科学 2019-12-05 Gábor Horváth , Edith Kovács , Roland Molontay , Szabolcs Nováczki

A finite-difference time-domain (FDTD) modelling of finite-size zero thickness space-time modulated Huygens' metasurfaces based on Generalized Sheet Transition Conditions (GSTCs), is proposed and numerically demonstrated. A typical…

光学 · 物理学 2017-01-06 Scott A. Stewart , Tom J. Smy , Shulabh Gupta

Generative models are widely utilized to model the distribution of fused images in the field of infrared and visible image fusion. However, current generative models based fusion methods often suffer from unstable training and slow…

计算机视觉与模式识别 · 计算机科学 2024-06-13 Zhiming Meng , Hui Li , Zeyang Zhang , Zhongwei Shen , Yunlong Yu , Xiaoning Song , Xiaojun Wu

We present a method for the joint analysis of a panel of possibly nonstationary time series. The approach is Bayesian and uses a covariate-dependent infinite mixture model to incorporate multiple time series, with mixture components…

统计方法学 · 统计学 2020-06-05 Michael Bertolacci , Ori Rosen , Edward Cripps , Sally Cripps

Visual Odometry (VO) is fundamental to autonomous navigation, robotics, and augmented reality, with unsupervised approaches eliminating the need for expensive ground-truth labels. However, these methods struggle when dynamic objects violate…

计算机视觉与模式识别 · 计算机科学 2025-08-04 Jingchao Xie , Oussema Dhaouadi , Weirong Chen , Johannes Meier , Jacques Kaiser , Daniel Cremers

Multi-modal image fusion integrates complementary information from different modalities into a unified representation. Current methods predominantly optimize statistical correlations between modalities, often capturing dataset-induced…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Xue Wang , Zheng Guan , Wenhua Qian , Chengchao Wang , Runzhuo Ma

The modeling of complicated time-evolving physical dynamics from partial observations is a long-standing challenge. Particularly, observations can be sparsely distributed in a seemingly random or unstructured manner, making it difficult to…

计算机视觉与模式识别 · 计算机科学 2025-10-23 Fan Xu , Hao Wu , Nan Wang , Lilan Peng , Kun Wang , Wei Gong , Xibin Zhao