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Simulation-based inference (SBI) methods typically require fully observed data to infer parameters of models with intractable likelihood functions. However, datasets often contain missing values due to incomplete observations, data…

机器学习 · 计算机科学 2025-03-04 Yogesh Verma , Ayush Bharti , Vikas Garg

To overcome the performance limitations in modern computing, such as the power wall, emerging computing paradigms are gaining increasing importance. Approximate computing offers a promising solution by substantially enhancing energy…

新兴技术 · 计算机科学 2024-12-23 Melanie Qiu , Caoyueshan Fan , Gulafshan , Salar Shakibhamedan , Fabian Seiler , Nima TaheriNejad

Accurate state estimation is a crucial requirement for the reliable operation and control of electric power systems. Here, we construct a data-driven, numerical method to infer missing power load values in large-scale power grids. Given…

系统与控制 · 电气工程与系统科学 2026-02-23 Philippe Jacquod , Laurent Pagnier , Daniel J. Gauthier

Missing value is a very common and unavoidable problem in sensors, and researchers have made numerous attempts for missing value imputation, particularly in deep learning models. However, for real sensor data, the specific data distribution…

机器学习 · 计算机科学 2022-09-27 JinSheng Yang , YuanHai Shao , ChunNa Li , Wensi Wang

Data imputation is a critical step in data pre-processing, particularly for datasets with missing or unreliable values. This study introduces a novel quantum-inspired imputation framework evaluated on the UCI Diabetes dataset, which…

量子物理 · 物理学 2025-05-13 Nishikanta Mohanty , Bikash K. Behera , Badshah Mukherjee , Christopher Ferrie

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

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

We present PPI++: a computationally lightweight methodology for estimation and inference based on a small labeled dataset and a typically much larger dataset of machine-learning predictions. The methods automatically adapt to the quality of…

机器学习 · 统计学 2024-03-27 Anastasios N. Angelopoulos , John C. Duchi , Tijana Zrnic

Spatiotemporal data mining plays an important role in air quality monitoring, crowd flow modeling, and climate forecasting. However, the originally collected spatiotemporal data in real-world scenarios is usually incomplete due to sensor…

机器学习 · 计算机科学 2023-02-21 Mingzhe Liu , Han Huang , Hao Feng , Leilei Sun , Bowen Du , Yanjie Fu

Missing data arises when certain values are not recorded or observed for variables of interest. However, most of the statistical theory assume complete data availability. To address incomplete databases, one approach is to fill the gaps…

统计方法学 · 统计学 2023-08-15 Luis Alejandro Masmela-Caita , Thais Paiva Galletti , Marcos Oliveira Prates

With the increasing integration of smart meters in electrical grids worldwide, detecting energy theft has become a critical and ongoing challenge. Artificial intelligence (AI)-based models have demonstrated strong performance in identifying…

机器学习 · 计算机科学 2025-07-08 Caylum Collier , Krishnendu Guha

We present a comprehensive analysis of deep learning approaches for Electronic Health Record (EHR) time-series imputation, examining how architectural and framework biases combine to influence model performance. Our investigation reveals…

机器学习 · 计算机科学 2025-02-05 Linglong Qian , Tao Wang , Jun Wang , Hugh Logan Ellis , Robin Mitra , Richard Dobson , Zina Ibrahim

Missing data is a commonly occurring problem in practice. Many imputation methods have been developed to fill in the missing entries. However, not all of them can scale to high-dimensional data, especially the multiple imputation…

机器学习 · 计算机科学 2023-03-21 Thu Nguyen , Hoang Thien Ly , Michael Alexander Riegler , Pål Halvorsen , Hugo L. Hammer

The problem of missing values in multivariable time series is a key challenge in many applications such as clinical data mining. Although many imputation methods show their effectiveness in many applications, few of them are designed to…

机器学习 · 计算机科学 2020-03-04 Ye Xue , Diego Klabjan , Yuan Luo

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

Missing time-series data is a prevalent practical problem. Imputation methods in time-series data often are applied to the full panel data with the purpose of training a model for a downstream out-of-sample task. For example, in finance,…

机器学习 · 统计学 2023-04-13 Jose Blanchet , Fernando Hernandez , Viet Anh Nguyen , Markus Pelger , Xuhui Zhang

Missing values are largely inevitable in gene expression microarray studies. Data sets often have significant omissions due to individuals dropping out of experiments, errors in data collection, image corruptions, and so on. Missing data…

定量方法 · 定量生物学 2018-09-18 Marie Li

Correlation Plenoptic Imaging (CPI) is a novel technological imaging modality enabling to overcome drawbacks of standard plenoptic devices, while preserving their advantages. However, a major challenge in view of real-time application of…

Conformal prediction is a framework for predictive inference with a distribution-free, finite-sample guarantee. However, it tends to provide uninformative prediction sets when calibration data are scarce. This paper introduces…

机器学习 · 计算机科学 2025-06-17 Meshi Bashari , Roy Maor Lotan , Yonghoon Lee , Edgar Dobriban , Yaniv Romano

Smart meters are increasingly used worldwide. Smart meters are the advanced meters capable of measuring energy consumption at a fine-grained time interval, e.g., every 15 minutes. Smart meter data are typically bundled with social economic…

数据库 · 计算机科学 2016-06-21 Xiufeng Liu , Per Sieverts Nielsen