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We propose an algorithm for the non-negative factorization of an occurrence tensor built from heterogeneous networks. We use l0 norm to model sparse errors over discrete values (occurrences), and use decomposed factors to model the embedded…

计算工程、金融与科学 · 计算机科学 2016-12-19 Zheng Xu , Furong Huang , Louiqa Raschid , Tom Goldstein

Accurate state of charge estimation is critical for the success of electric vehicle battery management strategies, but it is well known that conventional estimators suffer from two fundamental shortcomings: cumulative errors that grow over…

机器学习 · 计算机科学 2026-05-14 Han Wang , Ying Wang , Bing Wang

Completing multidimensional tensor-structured data with missing entries is a fundamental task for many real-world applications involving incomplete or corrupted datasets. For data with spatial or temporal side information, low-rank…

机器学习 · 统计学 2025-02-12 Mengying Lei , Lijun Sun

Short Term Load Forecast (STLF) is necessary for effective scheduling, operation optimization trading, and decision-making for electricity consumers. Modern and efficient machine learning methods are recalled nowadays to manage complicated…

应用统计 · 统计学 2021-10-20 Junjie Hu , Brenda López Cabrera , Awdesch Melzer

One of the primal challenges faced by utility companies is ensuring efficient supply with minimal greenhouse gas emissions. The advent of smart meters and smart grids provide an unprecedented advantage in realizing an optimised supply of…

机器学习 · 计算机科学 2023-07-19 Adithya Ramachandran , Satyaki Chatterjee , Siming Bayer , Andreas Maier , Thorkil Flensmark

Traditional NMF-based signal decomposition relies on the factorization of spectral data, which is typically computed by means of short-time frequency transform. In this paper we propose to relax the choice of a pre-fixed transform and learn…

机器学习 · 计算机科学 2017-12-18 Dylan Fagot , Cédric Févotte , Herwig Wendt

District Heating Systems are essential infrastructure for delivering heat to consumers across a geographic region sustainably, yet efficient management relies on optimizing diverse energy sources, such as wood, gas, electricity, and solar,…

Water quality data can supply a substantial decision support for water resources utilization and pollution prevention. However, there are numerous missing values in water quality data due to inescapable factors like sensor failure, thereby…

机器学习 · 计算机科学 2025-03-11 Qian Liu , Lan Wang , Bing Yang , Hao Wu

In intelligent transportation systems (ITS), traffic management departments rely on sensors, cameras, and GPS devices to collect real-time traffic data. Traffic speed data is often incomplete due to sensor failures, data transmission…

机器学习 · 计算机科学 2025-04-25 Jiawen Hou , Hao Wu

Recent studies suggest utilizing generative models instead of traditional auto-regressive algorithms for time series forecasting (TSF) tasks. These non-auto-regressive approaches involving different generative methods, including GAN,…

机器学习 · 计算机科学 2025-03-19 Jiangxuan Long , Zhao Song , Chiwun Yang

A new paradigm for large-scale spectrum occupancy learning based on long short-term memory (LSTM) recurrent neural networks is proposed. Studies have shown that spectrum usage is a highly correlated time series. Moreover, there is a…

信号处理 · 电气工程与系统科学 2019-05-14 Mohsen Joneidi , Ismail Alkhouri , Nazanin Rahnavard

We propose tensor time series imputation when the missing pattern in the tensor data can be general, as long as any two data positions along a tensor fibre are both observed for enough time points. The method is based on a tensor time…

统计理论 · 数学 2024-09-17 Zetai Cen , Clifford Lam

As demand-side flexibility becomes increasingly necessary to integrate variable renewable energy, understanding electricity demand composition across different grid levels is essential. However, at regional and national scales, visibility…

Due to accessible big data collections from consumers, products, and stores, advanced sales forecasting capabilities have drawn great attention from many companies especially in the retail business because of its importance in decision…

机器学习 · 计算机科学 2020-11-09 Xuan Bi , Gediminas Adomavicius , William Li , Annie Qu

This paper presents a framework for processing EV charging load data in order to forecast future load predictions using a Recurrent Neural Network, specifically an LSTM. The framework processes a large set of raw data from multiple…

Accurately predicting the demand for ride-hailing services can result in significant benefits such as more effective surge pricing strategies, improved driver positioning, and enhanced customer service. By understanding the demand…

机器学习 · 计算机科学 2023-06-27 Sheraz Hassan , Muhammad Tahir , Momin Uppal , Zubair Khalid , Ivan Gorban , Selim Turki

The matrix factorization (MF) technique has been widely adopted for solving the rating prediction problem in recommender systems. The MF technique utilizes the latent factor model to obtain static user preferences (user latent vectors) and…

社会与信息网络 · 计算机科学 2015-10-20 Yung-Yin Lo , Wanjiun Liao , Cheng-Shang Chang

Electricity is a volatile power source that requires great planning and resource management for both short and long term. More specifically, in the short-term, accurate instant energy consumption forecasting contributes greatly to improve…

人工智能 · 计算机科学 2022-07-05 Nuno Oliveira , Norberto Sousa , Isabel Praça

Recent studies indicate that the effects of inter-annual climate-based variability in power system planning are significant and that long samples of demand & weather data (spanning multiple decades) should be considered. At the same time,…

应用统计 · 统计学 2019-05-30 Adriaan P Hilbers , David J Brayshaw , Axel Gandy

Effective power flow (PF) modeling critically affects the solution accuracy and computational complexity of large-scale grid optimization problems. Especially for grid optimization involving flexible topology to enhance resilience,…

系统与控制 · 电气工程与系统科学 2025-03-27 Young-ho Cho , Hao Zhu