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Feature selection is a critical step in the analysis of high-dimensional data, where the number of features often vastly exceeds the number of samples. Effective feature selection not only improves model performance and interpretability but…

机器学习 · 计算机科学 2025-01-27 Raquel Espinosa , Gracia Sánchez , José Palma , Fernando Jiménez

In this article we present a method by which we can reduce a time series into a single point in $\mathbb{R}^{13}$. We have chosen 13 dimensions so as to prevent too many points from being labeled as "noise." When using a Euclidean (or…

数据分析、统计与概率 · 物理学 2018-05-07 Clark Alexander , Luke Shi , Sofya Akhmametyeva

A novel machine learning optimization process coined Restrictive Federated Model Selection (RFMS) is proposed under the scenario, for example, when data from healthcare units can not leave the site it is situated on and it is forbidden to…

机器学习 · 计算机科学 2019-08-12 Xudong Sun , Andrea Bommert , Florian Pfisterer , Jörg Rahnenführer , Michel Lang , Bernd Bischl

Feature selection is a crucial preprocessing step in data analytics and machine learning. Classical feature selection algorithms select features based on the correlations between predictive features and the class variable and do not attempt…

机器学习 · 计算机科学 2019-11-19 Kui Yu , Xianjie Guo , Lin Liu , Jiuyong Li , Hao Wang , Zhaolong Ling , Xindong Wu

In this paper, we develop a quantile functional regression modeling framework that models the distribution of a set of common repeated observations from a subject through the quantile function, which is regressed on a set of covariates to…

统计方法学 · 统计学 2017-11-02 Hojin Yang , Veerabhadran Baladandayuthapani , Jeffrey S. Morris

The all-relevant problem of feature selection is the identification of all strongly and weakly relevant attributes. This problem is especially hard to solve for time series classification and regression in industrial applications such as…

机器学习 · 计算机科学 2017-05-23 Maximilian Christ , Andreas W. Kempa-Liehr , Michael Feindt

Functional time series (FTS) data have become increasingly available in real-world applications. Research on such data typically focuses on two objectives: curve reconstruction and forecasting, both of which require efficient dimension…

统计方法学 · 统计学 2025-06-23 Zerui Guo , Jianbin Tan , Hui Huang

In this paper, we present a new method for few-sample supervised feature selection (FS). Our method first learns the manifold of the feature space of each class using kernels capturing multi-feature associations. Then, based on Riemannian…

机器学习 · 统计学 2022-07-19 David Cohen , Tal Shnitzer , Yuval Kluger , Ronen Talmon

Approximate Bayesian computation is an established and popular method for likelihood-free inference with applications in many disciplines. The effectiveness of the method depends critically on the availability of well performing summary…

机器学习 · 统计学 2018-05-23 Prashant Singh , Andreas Hellander

Dimensionality reduction has always been one of the most significant and challenging problems in the analysis of high-dimensional data. In the context of time series analysis, our focus is on the estimation and inference of conditional mean…

统计方法学 · 统计学 2023-12-05 S. Yaser Samadi , Tharindu P. De Alwis

Feature selection is frequently used as a pre-processing step to machine learning. It is a process of choosing a subset of original features so that the feature space is optimally reduced according to a certain evaluation criterion. The…

计算机视觉与模式识别 · 计算机科学 2014-01-07 Vijendra Singh , Shivani Pathak

Bayesian inference is a widely used technique for real-time characterization of quantum systems. It excels in experimental characterization in the low data regime, and when the measurements have degrees of freedom. A decisive factor for its…

量子物理 · 物理学 2025-07-10 Alexandra Ramôa , Raffaele Santagati , Nathan Wiebe

This paper introduces a novel graph-based filter method for automatic feature selection (abbreviated as GB-AFS) for multi-class classification tasks. The method determines the minimum combination of features required to sustain prediction…

机器学习 · 计算机科学 2023-09-06 David Levin , Gonen Singer

Dimensionality reduction is the fundamental problem for machine learning and pattern recognition. During data preprocessing, the feature selection is often demanded to reduce the computational complexity. The problem of feature selection is…

量子物理 · 物理学 2019-09-20 Kapil K. Sharma

Feature selection is a widely used dimension reduction technique to select feature subsets because of its interpretability. Many methods have been proposed and achieved good results, in which the relationships between adjacent data points…

机器学习 · 计算机科学 2020-06-01 Yan Min , Mao Ye , Liang Tian , Yulin Jian , Ce Zhu , Shangming Yang

Along with the flourish of the information age, massive amounts of data are generated day by day. Due to the large-scale and high-dimensional characteristics of these data, it is often difficult to achieve better decision-making in…

机器学习 · 计算机科学 2023-04-04 Peican Zhu , Xin Hou , Keke Tang , Zhen Wang , Feiping Nie

Coreset selection seeks to choose a subset of crucial training samples for efficient learning. It has gained traction in deep learning, particularly with the surge in training dataset sizes. Sample selection hinges on two main aspects: a…

机器学习 · 计算机科学 2024-03-05 Zhijing Wan , Zhixiang Wang , Yuran Wang , Zheng Wang , Hongyuan Zhu , Shin'ichi Satoh

Gradient Boosted Decision Trees (GBDTs) are widely used for building ranking and relevance models in search and recommendation. Considerations such as latency and interpretability dictate the use of as few features as possible to train…

机器学习 · 统计学 2021-09-07 Cuize Han , Nikhil Rao , Daria Sorokina , Karthik Subbian

Very large time series are increasingly available from an ever wider range of IoT-enabled sensors deployed in different environments. Significant insights can be gained by mining temporal patterns from these time series. Unlike traditional…

数据库 · 计算机科学 2021-11-18 Van Long Ho , Nguyen Ho , Torben Bach Pedersen

We study the problem of classifying interval-based temporal sequences (IBTSs). Since common classification algorithms cannot be directly applied to IBTSs, the main challenge is to define a set of features that effectively represents the…

机器学习 · 计算机科学 2020-09-18 S. Mohammad Mirbagheri , Howard J. Hamilton