Non-exercise-based racing time prediction of cross-country skiers using machine learning methods combined with Relief-F feature selection

IF 1.1 4区 医学 Q4 ENGINEERING, MECHANICAL
F. Abut, MF Akay, S. Daneshvar, A. Özcan, D. Heil
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引用次数: 0

Abstract

This study proposes new non-exercise models for estimating the racing time of cross-country skiers. Machine learning methods employed to build the prediction models include General Regression Neural Network (GRNN), Support Vector Machine (SVM), Multilayer Feed-Forward Artificial Neural Network (MFANN), and Radial Basis Function Neural Network (RBFNN), whereas the Relief-F algorithm combined with a ranker search has been utilized as the feature selector. The self-created data set contains samples collected from 370 cross-country skiers with inhomogeneous capabilities. Each sample in the data set contains physiological variables such as sex, age, height, weight, and body mass index (BMI) combined with an immersive set of survey data. The outcomes suggest that generally, the GRNN-based models exhibit the best prediction performance and can be used as a feasible tool for the prediction of the racing time of cross-country skiers with tolerable root mean square errors (RMSEs). It is seen that inclusion of age and assigned starting wave of cross-country skiers in models leads to much lower RMSEs, suggesting that the racing time of cross-country skiers is highly correlated to these two predictor variables. When compared with the exercise-based models, the proposed non-exercise-based models produce consistently comparable prediction performance for all evaluated machine learning methods. The non-exercise-based models have the relevant benefit of practical feasibility, as the models do not require the skiers to complete physical exercises and are also applicable to a wide range of cross-country skiers.
基于机器学习与Relief-F特征选择相结合的越野滑雪运动员非运动比赛时间预测
这项研究提出了新的非运动模型来估计越野滑雪运动员的比赛时间。用于建立预测模型的机器学习方法包括广义回归神经网络(GRNN)、支持向量机(SVM)、多层前馈人工神经网络(MFANN)和径向基函数神经网络(RBFNN),而Relief-F算法与秩搜索相结合被用作特征选择器。这个自行创建的数据集包含了从370名能力参差不齐的越野滑雪运动员身上采集的样本。数据集中的每个样本都包含生理变量,如性别、年龄、身高、体重和体重指数(BMI),并结合了一组身临其境的调查数据。结果表明,通常情况下,基于GRNN的模型表现出最佳的预测性能,可以作为一种可行的工具来预测具有可容忍均方根误差(RMSE)的越野滑雪运动员的比赛时间。可以看出,在模型中包括越野滑雪运动员的年龄和指定的起始波会导致RMSE低得多,这表明越野滑雪者的比赛时间与这两个预测变量高度相关。当与基于锻炼的模型相比时,所提出的非锻炼模型对所有评估的机器学习方法产生了一致的可比预测性能。非基于锻炼的模型具有实际可行性的相关好处,因为这些模型不需要滑雪者完成体育锻炼,也适用于各种越野滑雪者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.50
自引率
20.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: The Journal of Sports Engineering and Technology covers the development of novel sports apparel, footwear, and equipment; and the materials, instrumentation, and processes that make advances in sports possible.
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