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Seismic data reconstruction is an effective tool for compensating nonuniform and incomplete seismic geometry. Compared with methods for 2D seismic data, 3D reconstruction methods could consider more spatial structure correlation in seismic…

地球物理 · 物理学 2024-06-21 Xinyang Wang , Qianyu Ge , Xintong Dong , Shiqi Dong , Tie Zhong

Video Shadow Detection (VSD) aims to detect the shadow masks with frame sequence. Existing works suffer from inefficient temporal learning. Moreover, few works address the VSD problem by considering the characteristic (i.e., boundary) of…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Haipeng Zhou , Honqiu Wang , Tian Ye , Zhaohu Xing , Jun Ma , Ping Li , Qiong Wang , Lei Zhu

Inertial measurement units (IMUs) are fundamental sensing components in multi-source integrated navigation systems, and their performance directly determines the accuracy and reliability of solutions. However, the precision of low-cost IMUs…

信号处理 · 电气工程与系统科学 2026-05-19 Jiarui Lv , Feng Zhu , Xiaohong Zhang

Data-driven weather prediction models exhibit promising performance and advance continuously. In particular, diffusion models represent fine-scale details without spatial smoothing, which is crucial for mesoscale predictions, such as heavy…

机器学习 · 计算机科学 2025-03-26 Yuta Hirabayashi , Daisuke Matsuoka

Missing data is a ubiquitous problem. It is especially challenging in medical settings because many streams of measurements are collected at different - and often irregular - times. Accurate estimation of those missing measurements is…

机器学习 · 计算机科学 2017-11-27 Jinsung Yoon , William R. Zame , Mihaela van der Schaar

Optimizing high-dimensional and complex black-box functions is crucial in numerous scientific applications. While Bayesian optimization (BO) is a powerful method for sample-efficient optimization, it struggles with the curse of…

机器学习 · 计算机科学 2025-07-08 Taeyoung Yun , Kiyoung Om , Jaewoo Lee , Sujin Yun , Jinkyoo Park

Healthcare time series data is vital for monitoring patient activity but often contains noise and missing values due to various reasons such as sensor errors or data interruptions. Imputation, i.e., filling in the missing values, is a…

机器学习 · 计算机科学 2024-12-17 Lien P. Le , Xuan-Hien Nguyen Thi , Thu Nguyen , Michael A. Riegler , Pål Halvorsen , Binh T. Nguyen

This survey delves into the application of diffusion models in time-series forecasting. Diffusion models are demonstrating state-of-the-art results in various fields of generative AI. The paper includes comprehensive background information…

机器学习 · 计算机科学 2024-01-18 Caspar Meijer , Lydia Y. Chen

Imputation of missing attribute values in medical datasets for extracting hidden knowledge from medical datasets is an interesting research topic of interest which is very challenging. One cannot eliminate missing values in medical records.…

数据库 · 计算机科学 2016-03-11 Yelipe UshaRani , P. Sammulal

Processed data are insightful, and crude data are obtuse. A serious threat to data reliability is missing values. Such data leads to inaccurate analysis and wrong predictions. We propose an efficient technique to impute the missing value in…

机器学习 · 计算机科学 2021-07-02 Prateek Mishra , Kumar Divya Mani , Prashant Johri , Dikhsa Arya

Diffusion-based algorithms have emerged as promising techniques for weight generation. However, existing solutions are limited by two challenges: generalizability and local target assignment. The former arises from the inherent lack of…

机器学习 · 计算机科学 2025-05-20 Yunchuan Guan , Yu Liu , Ke Zhou , Zhiqi Shen , Jenq-Neng Hwang , Lei Li

The challenge of handling missing data in time series is critical for maintaining the accuracy and reliability of machine learning (ML) models in applications like fifth generation mobile communication (5G) network management. Traditional…

机器学习 · 计算机科学 2025-03-11 Rania Farjallah , Bassant Selim , Brigitte Jaumard , Samr Ali , Georges Kaddoum

Despite the remarkable success of diffusion models in text-to-image generation, their effectiveness in grounded visual editing and compositional control remains challenging. Motivated by advances in self-supervised learning and in-context…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Shreya Kadambi , Risheek Garrepalli , Shubhankar Borse , Munawar Hyatt , Fatih Porikli

Diffusion models have become a leading paradigm in generative AI, with score estimation via denoising score matching as a central component. While recent theory provides strong statistical guarantees, it typically relies on…

机器学习 · 计算机科学 2026-04-21 Yinbin Han , Meisam Razaviyayn , Renyuan Xu

The generation of high-quality, long-sequenced time-series data is essential due to its wide range of applications. In the past, standalone Recurrent and Convolutional Neural Network-based Generative Adversarial Networks (GAN) were used to…

机器学习 · 计算机科学 2024-04-25 Md Fahim Sikder , Resmi Ramachandranpillai , Fredrik Heintz

The introduction of new generation hyperspectral satellite sensors, combined with advancements in deep learning methodologies, has significantly enhanced the ability to discriminate detailed land-cover classes at medium-large scales.…

计算机视觉与模式识别 · 计算机科学 2025-10-10 Mattia Ferrari , Lorenzo Bruzzone

Missing data is a significant problem impacting all domains. State-of-the-art framework for minimizing missing data bias is multiple imputation, for which the choice of an imputation model remains nontrivial. We propose a multiple…

机器学习 · 计算机科学 2018-02-20 Lovedeep Gondara , Ke Wang

Unsupervised fault detection in multivariate time series plays a vital role in ensuring the stable operation of complex systems. Traditional methods often assume that normal data follow a single Gaussian distribution and identify anomalies…

机器学习 · 计算机科学 2025-07-01 Hong Liu , Xiuxiu Qiu , Yiming Shi , Miao Xu , Zelin Zang , Zhen Lei

Missing data in time series is a pervasive problem that puts obstacles in the way of advanced analysis. A popular solution is imputation, where the fundamental challenge is to determine what values should be filled in. This paper proposes…

机器学习 · 计算机科学 2023-07-06 Wenjie Du , David Cote , Yan Liu

In industrial equipment monitoring, fault diagnosis is critical for ensuring system reliability and enabling predictive maintenance. However, the scarcity of fault data, due to the rarity of fault events and the high cost of data…

机器学习 · 计算机科学 2025-11-20 Yi Xu , Zhigang Chen , Rui Wang , Yangfan Li , Fengxiao Tang , Ming Zhao , Jiaqi Liu