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Time series prediction typically consists of a data reconstruction phase where the time series is broken into overlapping windows known as the timespan. The size of the timespan can be seen as a way of determining the extent of past…

神经与进化计算 · 计算机科学 2018-06-14 Rohitash Chandra , Yew-Soon Ong , Chi-Keong Goh

We propose an energy amplification technique to address the issue that existing models easily overlook low-energy components in time series forecasting. This technique comprises an energy amplification block and an energy restoration block.…

机器学习 · 计算机科学 2025-02-25 Jingru Fei , Kun Yi , Wei Fan , Qi Zhang , Zhendong Niu

Short-term load forecasting is of paramount importance in the efficient operation and planning of power systems, given its inherent non-linear and dynamic nature. Recent strides in deep learning have shown promise in addressing this…

机器学习 · 计算机科学 2023-09-20 Paapa Kwesi Quansah , Edwin Kwesi Ansah Tenkorang

Time series forecasting has received wide interest from existing research due to its broad applications and inherent challenging. The research challenge lies in identifying effective patterns in historical series and applying them to future…

机器学习 · 计算机科学 2023-07-14 Tianlong Zhao , Xiang Ma , Xuemei Li , Caiming Zhang

While numerous forecasters have been proposed using different network architectures, the Transformer-based models have state-of-the-art performance in time series forecasting. However, forecasters based on Transformers are still suffering…

机器学习 · 计算机科学 2024-11-06 Kun Yi , Jingru Fei , Qi Zhang , Hui He , Shufeng Hao , Defu Lian , Wei Fan

In the era of information explosion, spatio-temporal data mining serves as a critical part of urban management. Considering the various fields demanding attention, e.g., traffic state, human activity, and social event, predicting multiple…

人工智能 · 计算机科学 2023-09-19 Zijian Zhang , Xiangyu Zhao , Qidong Liu , Chunxu Zhang , Qian Ma , Wanyu Wang , Hongwei Zhao , Yiqi Wang , Zitao Liu

Transformer-based time series foundation models face a fundamental trade-off in choice of tokenization: point-wise embeddings preserve temporal fidelity but scale poorly with sequence length, whereas fixed-length patching improves…

Persistent monitoring of a spatiotemporal fluid process requires data sampling and predictive modeling of the process being monitored. In this paper we present PASST algorithm: Predictive-model based Adaptive Sampling of a Spatio-Temporal…

机器人学 · 计算机科学 2023-04-04 Sandeep Manjanna , Tom Z. Jiahao , M. Ani Hsieh

In this paper, we introduce TimeGPT, the first foundation model for time series, capable of generating accurate predictions for diverse datasets not seen during training. We evaluate our pre-trained model against established statistical,…

机器学习 · 计算机科学 2024-05-29 Azul Garza , Cristian Challu , Max Mergenthaler-Canseco

While Internet of Things (IoT) devices and sensors create continuous streams of information, Big Data infrastructures are deemed to handle the influx of data in real-time. One type of such a continuous stream of information is time series…

统计方法学 · 统计学 2020-05-05 Elyas Sabeti , Peter X. K. Song , Alfred O. Hero

Driven by the transition towards a climate-neutral energy system, accurate energy time series forecasting is critical for planning and operation. Yet, it remains largely a dataset-specific task, requiring comprehensive training data,…

机器学习 · 计算机科学 2026-04-27 Marco Obermeier , Marco Pruckner , Florian Haselbeck , Andreas Zeiselmair

Time series forecasting is an important yet challenging task. Though deep learning methods have recently been developed to give superior forecasting results, it is crucial to improve the interpretability of time series models. Previous…

机器学习 · 计算机科学 2020-12-18 Qingyi Pan , Wenbo Hu , Jun Zhu

Urban spatio-temporal prediction is crucial for informed decision-making, such as traffic management, resource optimization, and emergence response. Despite remarkable breakthroughs in pretrained natural language models that enable one…

机器学习 · 计算机科学 2024-07-02 Yuan Yuan , Jingtao Ding , Jie Feng , Depeng Jin , Yong Li

The main objective of this study is to propose an enhanced wind power forecasting (EWPF) transformer model for handling power grid operations and boosting power market competition. It helps reliable large-scale integration of wind power…

系统与控制 · 电气工程与系统科学 2023-04-24 Md Rasel Sarkar , Sreenatha G. Anavatti , Tanmoy Dam , Mahardhika Pratama , Berlian Al Kindhi

A new efficient ensemble prediction strategy is developed for a general turbulent model framework with emphasis on the nonlinear interactions between large and small scale variables. The high computational cost in running large ensemble…

流体动力学 · 物理学 2023-02-22 Di Qi , Jian-Guo Liu

Power demand forecasting is a critical task for achieving efficiency and reliability in power grid operation. Accurate forecasting allows grid operators to better maintain the balance of supply and demand as well as to optimize operational…

其他计算机科学 · 计算机科学 2019-04-30 Yao Cheng , Chang Xu , Daisuke Mashima , Vrizlynn L. L. Thing , Yongdong Wu

Various deep learning models, especially some latest Transformer-based approaches, have greatly improved the state-of-art performance for long-term time series forecasting.However, those transformer-based models suffer a severe…

机器学习 · 计算机科学 2022-06-27 Tian Zhou , Jianqing Zhu , Xue Wang , Ziqing Ma , Qingsong Wen , Liang Sun , Rong Jin

Recurrent and convolutional neural networks are the most common architectures used for time series forecasting in deep learning literature. These networks use parameter sharing by repeating a set of fixed architectures with fixed parameters…

机器学习 · 计算机科学 2020-11-30 Joel Janek Dabrowski , YiFan Zhang , Ashfaqur Rahman

Atmospheric models used for weather and climate prediction are traditionally formulated in a deterministic manner. In other words, given a particular state of the resolved scale variables, the most likely forcing from the sub-grid scale…

机器学习 · 计算机科学 2024-02-16 Hannah M. Christensen , Salah Kouhen , Greta Miller , Raghul Parthipan

The increasing penetration level of energy generation from renewable sources is demanding for more accurate and reliable forecasting tools to support classic power grid operations (e.g., unit commitment, electricity market clearing or…

机器学习 · 计算机科学 2020-07-17 Michela Moschella , Mauro Tucci , Emanuele Crisostomi , Alessandro Betti