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相关论文: Filling the Missings: Spatiotemporal Data Imputati…

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The generation of synthetic financial data is a critical technology in the financial domain, addressing challenges posed by limited data availability. Traditionally, statistical models have been employed to generate synthetic data. However,…

计算金融 · 定量金融 2025-03-07 Yuki Tanaka , Ryuji Hashimoto , Takehiro Takayanagi , Zhe Piao , Yuri Murayama , Kiyoshi Izumi

With global urbanization, the focus on sustainable cities has largely grown, driving research into equity, resilience, and urban planning, which often relies on mobility data. The rise of web-based apps and mobile devices has provided…

机器学习 · 计算机科学 2025-02-14 Yuheng Zhang , Yuan Yuan , Jingtao Ding , Jian Yuan , Yong Li

Missing value imputation in machine learning is the task of estimating the missing values in the dataset accurately using available information. In this task, several deep generative modeling methods have been proposed and demonstrated…

机器学习 · 计算机科学 2023-03-14 Shuhan Zheng , Nontawat Charoenphakdee

Geographical, physical, or economic constraints often result in missing traces within seismic data, making the reconstruction of complete seismic data a crucial step in seismic data processing. Traditional methods for seismic data…

机器学习 · 计算机科学 2024-09-20 Shuang Wang , Fei Deng , Peifan Jiang , Zishan Gong , Xiaolin Wei , Yuqing Wang

Air pollution is a great concern because of its impact on human health and on the environment. Statistical models play an important role in improving knowledge of this complex spatio-temporal phenomenon and in supporting public agencies and…

应用统计 · 统计学 2015-03-17 Michela Cameletti , Rosaria Ignaccolo , Stefano Bande

In this paper, we point out that suboptimal noise-data mapping leads to slow training of diffusion models. During diffusion training, current methods diffuse each image across the entire noise space, resulting in a mixture of all images at…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Yiheng Li , Heyang Jiang , Akio Kodaira , Masayoshi Tomizuka , Kurt Keutzer , Chenfeng Xu

Learning physical dynamics from data is a fundamental challenge in machine learning and scientific modeling. Real-world observational data are inherently incomplete and irregularly sampled, posing significant challenges for existing…

机器学习 · 计算机科学 2026-05-04 Zihan Zhou , Chenguang Wang , Hongyi Ye , Yongtao Guan , Tianshu Yu

Data imputation is crucial for addressing challenges posed by missing values in multivariate time series data across various fields, such as healthcare, traffic, and economics, and has garnered significant attention. Among various methods,…

机器学习 · 计算机科学 2025-01-14 Chunjing Xiao , Xue Jiang , Xianghe Du , Wei Yang , Wei Lu , Xiaomin Wang , Kevin Chetty

Dealing with missing values and incomplete time series is a labor-intensive, tedious, inevitable task when handling data coming from real-world applications. Effective spatio-temporal representations would allow imputation methods to…

机器学习 · 计算机科学 2022-02-11 Andrea Cini , Ivan Marisca , Cesare Alippi

Multimodal Federated Learning (MMFL) enables privacy-preserving collaborative training, but real-world clinical applications often suffer from within-modality missingness caused by sensor intermittency or irregular sampling. Existing…

机器学习 · 计算机科学 2026-04-28 Wugeng Zheng , Ziwen Kan , Katie Wang , Chen Chen , Song Wang

Diffusion models have recently shown promise in time series forecasting, particularly for probabilistic predictions. However, they often fail to achieve state-of-the-art point estimation performance compared to regression-based methods.…

人工智能 · 计算机科学 2025-11-25 Hang Ding , Xue Wang , Tian Zhou , Tao Yao

Missing covariate data commonly occur in epidemiological and clinical research, and are often dealt with using multiple imputation (MI). Imputation of partially observed covariates is complicated if the substantive model is non-linear (e.g.…

统计方法学 · 统计学 2014-02-17 Jonathan W. Bartlett , Shaun R. Seaman , Ian R. White , James R. Carpenter

The air quality inference problem aims to utilize historical data from a limited number of observation sites to infer the air quality index at an unknown location. Considering the sparsity of data due to the high maintenance cost of the…

机器学习 · 计算机科学 2024-06-07 Yutong Feng , Qiongyan Wang , Yutong Xia , Junlin Huang , Siru Zhong , Yuxuan Liang

Most recent network failure diagnosis systems focused on data center networks where complex measurement systems can be deployed to derive routing information and ensure network coverage in order to achieve accurate and fast fault…

网络与互联网体系结构 · 计算机科学 2022-07-06 Yufeng Xin , Shih-Wen Fu , Anirban Mandal , Ryan Tanaka , Mats Rynge , Karan Vahi , Ewa Deelman

Researchers have been persistently working to address the issue of missing values in time series data. Numerous models have been proposed, striving to estimate the distribution of the data. The Radial Basis Functions Neural Network (RBFNN)…

机器学习 · 计算机科学 2024-08-01 Chanyoung Jung , Yun Jang

Conformal prediction provides a distribution-free framework for uncertainty quantification. This study explores the application of conformal prediction in scenarios where covariates are missing, which introduces significant challenges for…

统计方法学 · 统计学 2025-09-09 Jingsen Kong , YIming Liu , Guangren Yang

Modelling the transmission dynamics of an infectious disease is a complex task. Not only it is difficult to accurately model the inherent non-stationarity and heterogeneity of transmission, but it is nearly impossible to describe,…

统计计算 · 统计学 2023-07-19 Sanmitra Ghosh , Paul J. Birrell , Daniela De Angelis

Explosive growth in spatio-temporal data and its wide range of applications have attracted increasing interests of researchers in the statistical and machine learning fields. The spatio-temporal regression problem is of paramount importance…

机器学习 · 计算机科学 2020-09-15 Aniruddha Rajendra Rao , Qiyao Wang , Haiyan Wang , Hamed Khorasgani , Chetan Gupta

Earth system forecasting has traditionally relied on complex physical models that are computationally expensive and require significant domain expertise. In the past decade, the unprecedented increase in spatiotemporal Earth observation…

机器学习 · 计算机科学 2023-12-29 Zhihan Gao , Xingjian Shi , Boran Han , Hao Wang , Xiaoyong Jin , Danielle Maddix , Yi Zhu , Mu Li , Yuyang Wang

As the role played by statistical and computational sciences in climate and environmental modelling and prediction becomes more important, Machine Learning researchers are becoming more aware of the relevance of their work to help tackle…

机器学习 · 统计学 2020-12-23 Federico Amato , Fabian Guignard , Sylvain Robert , Mikhail Kanevski