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相关论文: FRANS: Automatic Feature Extraction for Time Serie…

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Dynamic feature selection (DFS) is a machine learning framework in which features are acquired sequentially for individual samples under budget constraints. The exponential growth in the number of possible feature acquisition paths forces a…

机器学习 · 计算机科学 2026-05-13 Javier Fumanal-Idocin , Raquel Fernandez-Peralta , Javier Andreu-Perez

The intricate nature of time series data analysis benefits greatly from the distinct advantages offered by time and frequency domain representations. While the time domain is superior in representing local dependencies, particularly in…

机器学习 · 计算机科学 2024-04-09 Hengyu Ye , Jiadong Chen , Shijin Gong , Fuxin Jiang , Tieying Zhang , Jianjun Chen , Xiaofeng Gao

In order to allow machine learning algorithms to extract knowledge from raw data, these data must first be cleaned, transformed, and put into machine-appropriate form. These often very time-consuming phase is referred to as preprocessing.…

机器学习 · 计算机科学 2021-11-19 David Cemernek

This paper introduces FANTF (Fuzzy Attention Network-Based Transformers), a novel approach that integrates fuzzy logic with existing transformer architectures to advance time series forecasting, classification, and anomaly detection tasks.…

机器学习 · 计算机科学 2025-04-02 Sanjay Chakraborty , Fredrik Heintz

Atmospheric processes involve both space and time. This is why human analysis of atmospheric imagery can often extract more information from animated loops of image sequences than from individual images. Automating such an analysis requires…

计算机视觉与模式识别 · 计算机科学 2022-10-26 Akansha Singh Bansal , Yoonjin Lee , Kyle Hilburn , Imme Ebert-Uphoff

Meta-forecasting is a newly emerging field which combines meta-learning and time series forecasting. The goal of meta-forecasting is to train over a collection of source time series and generalize to new time series one-at-a-time. Previous…

机器学习 · 计算机科学 2023-02-07 Mike Van Ness , Huibin Shen , Hao Wang , Xiaoyong Jin , Danielle C. Maddix , Karthick Gopalswamy

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

Time series forecasting is a challenging task with applications in a wide range of domains. Auto-regression is one of the most common approaches to address these problems. Accordingly, observations are modelled by multiple regression using…

机器学习 · 统计学 2020-10-15 Vitor Cerqueira , Nuno Moniz , Carlos Soares

Fine-grained action detection is an important task with numerous applications in robotics and human-computer interaction. Existing methods typically utilize a two-stage approach including extraction of local spatio-temporal features…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Khoi-Nguyen C. Mac , Dhiraj Joshi , Raymond A. Yeh , Jinjun Xiong , Rogerio S. Feris , Minh N. Do

Feature selection (FS) is a fundamental challenge in machine learning, particularly for high-dimensional tabular data, where interpretability and computational efficiency are critical. Existing FS methods often cannot automatically detect…

机器学习 · 计算机科学 2026-04-22 Witold Wydmański , Marek Śmieja

Condition monitoring is one of the routine tasks in all major process industries. The mechanical parts such as a motor, gear, bearings are the major components of a process industry and any fault in them may cause a total shutdown of the…

机器学习 · 计算机科学 2018-10-23 Mohendra Roy , Sumon Kumar Bose , Bapi Kar , Pradeep Kumar Gopalakrishnan , Arindam Basu

Sentiment Analysis refers to the study of systematically extracting the meaning of subjective text . When analysing sentiments from the subjective text using Machine Learning techniques,feature extraction becomes a significant part. We…

计算与语言 · 计算机科学 2019-06-05 Avinash Madasu , Sivasankar E

Feature extraction is a critical technology to realize the automatic transmission of feature information throughout product life cycles. As CAD models primarily capture the 3D geometry of products, feature extraction heavily relies on…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Peng Xu , Qi Gao , Ying-Jie Wu

We present a case study of solar flare forecasting by means of metadata feature time series, by treating it as a prominent class-imbalance and temporally coherent problem. Taking full advantage of pre-flare time series in solar active…

太阳与恒星天体物理 · 物理学 2021-05-26 Azim Ahmadzadeh , Berkay Aydin , Manolis K. Georgoulis , Dustin J. Kempton , Sushant S. Mahajan , Rafal A. Angryk

Deep neural networks are a powerful tool for feature learning and extraction given their ability to model high-level abstractions in highly complex data. One area worth exploring in feature learning and extraction using deep neural networks…

机器学习 · 计算机科学 2015-12-15 Mohammad Javad Shafiee , Parthipan Siva , Paul Fieguth , Alexander Wong

Time series analysis is a fundamental task in various application domains, and deep learning approaches have demonstrated remarkable performance in this area. However, many real-world time series data exhibit significant periodic or…

机器学习 · 计算机科学 2023-09-06 Chunwei Yang , Xiaoxu Chen , Lijun Sun , Hongyu Yang , Yuankai Wu

Predictable Feature Analysis (PFA) (Richthofer, Wiskott, ICMLA 2015) is an algorithm that performs dimensionality reduction on high dimensional input signal. It extracts those subsignals that are most predictable according to a certain…

机器学习 · 计算机科学 2017-12-05 Stefan Richthofer , Laurenz Wiskott

Despite the success of Transformer-based models in the time-series prediction (TSP) tasks, the existing Transformer architecture still face limitations and the literature lacks comprehensive explorations into alternative architectures. To…

机器学习 · 计算机科学 2025-02-20 Juyuan Zhang , Wei Zhu , Jiechao Gao

Fast Function Extraction (FFX) is a deterministic algorithm for solving symbolic regression problems. We improve the accuracy of FFX by adding parameters to the arguments of nonlinear functions. Instead of only optimizing linear parameters,…

机器学习 · 计算机科学 2023-03-10 Lukas Kammerer , Gabriel Kronberger , Michael Kommenda

Diffusion models have achieved state-of-the-art performance in generative modeling tasks across various domains. Prior works on time series diffusion models have primarily focused on developing conditional models tailored to specific…