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In order to solve the problems such as difficult to extract effective features and low accuracy of sales volume prediction caused by complex relationships such as market sales volume in time series prediction, we proposed a time series…

信号处理 · 电气工程与系统科学 2024-06-06 Jianyu Liu , Wei Chen , Yong Zhang , Zhenfeng Chen , Bin Wan , Jinwei Hu

The empirical mode decomposition (EMD) method and its variants have been extensively employed in the load and renewable forecasting literature. Using this multiresolution decomposition, time series (TS) related to the historical load and…

系统与控制 · 电气工程与系统科学 2020-11-24 Nima Safari , George Price , Chi Yung Chung

We introduce a novel ensemble approach for feature selection based on hierarchical stacking for non-stationarity and/or a limited number of samples with a large number of features. Our approach exploits the co-dependency between features…

机器学习 · 计算机科学 2024-10-08 Aysin Tumay , Mustafa E. Aydin , Ali T. Koc , Suleyman S. Kozat

Selecting techniques is a crucial element of the business analysis approach planning in IT projects. Particular attention is paid to the choice of techniques for requirements elicitation. One of the promising methods for selecting…

软件工程 · 计算机科学 2023-08-22 Denys Gobov , Olga Solovei

The emergence of abundant electricity time series (ETS) data provides ample opportunities for various applications in the power systems, including demand-side management, grid stability, and consumer behavior analysis. Deep learning models…

机器学习 · 计算机科学 2024-10-04 Shihao Tu , Yupeng Zhang , Jing Zhang , Zhendong Fu , Yin Zhang , Yang Yang

Early Time Series Classification (ETSC) is critical in time-sensitive medical applications such as sepsis, yet it presents an inherent trade-off between accuracy and earliness. This trade-off arises from two core challenges: 1) models…

机器学习 · 计算机科学 2025-11-06 Tao Xie , Zexi Tan , Haoyi Xiao , Binbin Sun , Yiqun Zhang

Massively multilingual sentence representation models, e.g., LASER, SBERT-distill, and LaBSE, help significantly improve cross-lingual downstream tasks. However, the use of a large amount of data or inefficient model architectures results…

计算与语言 · 计算机科学 2024-05-31 Zhuoyuan Mao , Chenhui Chu , Sadao Kurohashi

The decomposition of time series into components is an important task that helps to understand time series and can enable better forecasting. Nowadays, with high sampling rates leading to high-frequency data (such as daily, hourly, or…

应用统计 · 统计学 2021-07-29 Kasun Bandara , Rob J Hyndman , Christoph Bergmeir

Thompson sampling (TS) is a popular heuristic for action selection, but it requires sampling from a posterior distribution. Unfortunately, this can become computationally intractable in complex environments, such as those modeled using…

Time series forecasting models are increasingly scaled through large Transformer backbones, yet most existing approaches process all series through a shared dense computation path despite substantial heterogeneity in temporal structure.…

机器学习 · 计算机科学 2026-05-26 Rui Wang , Renhao Xue , Ray Razi , Huan Song , Hannah R. Marlowe

One of the most urgent problems is the overcrowding in emergency departments (EDs), caused by an aging population and rising healthcare costs. Patient dispositions have become more complex as a result of the strain on hospital…

机器学习 · 计算机科学 2024-12-23 Nafisa Binte Feroz , Chandrima Sarker , Tanzima Ahsan , K M Arefeen Sultan , Raqeebir Rab

In this paper, we develop an {\em epsilon admissible subsets} (EAS) model selection approach for performing group variable selection in the high-dimensional multivariate regression setting. This EAS strategy is designed to estimate a…

统计方法学 · 统计学 2024-01-17 Salil Koner , Jonathan P Williams

Exponential smoothing is a time series forecasting method that presents the forecast based on trend and seasonality components. In this work, we study the behavior of two time series that describe the level of the water reservoirs of the…

数据分析、统计与概率 · 物理学 2023-06-09 Lydiane F. Souza

Model performance evaluation is a critical and expensive task in machine learning and computer vision. Without clear guidelines, practitioners often estimate model accuracy using a one-time completely random selection of the data. However,…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Riccardo Fogliato , Pratik Patil , Mathew Monfort , Pietro Perona

This paper proposes a novel Extended Particle Swarm Optimization model (EPSO) that potentially enhances the search process of PSO for optimization problem. Evidently, gene expression profiles are significantly important measurement factor…

神经与进化计算 · 计算机科学 2020-08-11 Ali Hakem Alsaeedi , Adil L. Albukhnefis , Dhiah Al-Shammary , Muntasir Al-Asfoor

Feature selection has been recently used in the area of software engineering for improving the accuracy and robustness of software cost models. The idea behind selecting the most informative subset of features from a pool of available cost…

软件工程 · 计算机科学 2023-12-21 Efi Papatheocharous , Harris Papadopoulos , Andreas S. Andreou

Decision support systems like computer-aided energy system analysis (ESA) are considered one of the main pillars for developing sustainable and reliable energy transformation strategies. Although today's diverse tools can already support…

In the era of big data, analysts usually explore various statistical models or machine learning methods for observed data in order to facilitate scientific discoveries or gain predictive power. Whatever data and fitting procedures are…

机器学习 · 统计学 2018-10-24 Jie Ding , Vahid Tarokh , Yuhong Yang

Edge-preserving smoothing (EPS) can be formulated as minimizing an objective function that consists of data and prior terms. This global EPS approach shows better smoothing performance than a local one that typically has a form of weighted…

计算机视觉与模式识别 · 计算机科学 2016-04-27 Youngjung Kim , Dongbo Min , Bumsub Ham , Kwanghoon Sohn

Feature selection has emerged as a crucial technique in refining recommender systems. Recent advancements leveraging Automated Machine Learning (AutoML) has drawn significant attention, particularly in two main categories: early feature…

信息检索 · 计算机科学 2025-09-16 Fan Hu , Gaofeng Lu , Jun Chen , Chaonan Guo , Yuekui Yang , Xirong Li