人类运动生物力学时间序列数据的数据增强:一个范围审查
Christina Halmich1,2, Lucas Höschler3, Christoph Schranz2
1Department of Artificial Intelligence and Human Interfaces, Paris-Lodron-University Salzburg, Salzburg, Austria.
PloS one
|July 1, 2025
概括
生物力学中的数据增强对于改善机器学习模型至关重要,尽管数据有限. 目前的方法需要更好的评估,特别是关于现实的运动模拟和对模型性能的影响.
科学领域:
- 生物力学 生物力学
- 机器学习 机器学习
- 深度学习 (Deep Learning) 是一种深度学习.
- 数据科学数据科学数据科学
背景情况:
- 机器学习和深度学习提供先进的生物力学数据分析.
- 挑战包括有限的数据,高成本,传感器可变性和运动模式多样性.
- 数据增强是一个潜在的解决方案,但其在生物力学时间序列数据中的应用需要进一步评估.
研究的目的:
- 对生物力学时间序列数据的数据增强技术进行范围审查.
- 检查当前的方法,评估其有效性,并提供应用建议.
主要方法:
- 在四个数据库 (PubMed,IEEE Xplore,Scopus,Web of Science) 进行了系统的文献搜索.
- 包括在2013年至2024年间发表的研究.
- 在研究选择过程中遵循了PRISMA-ScR指南.
主要成果:
- 确定了21个相关出版物.
- 对于数据增强,没有单一的最佳实践;方法取决于研究.
- 关键问题包括在合成数据中缺乏软组织工件,以及对增强方法对下游模型影响的评估不足.
结论:
- 数据增强对于克服数据稀缺性和提高生物力学模型概括性至关重要.
- 根据特定数据特征定制增强技术对于提高预测模型性能至关重要.
- 需要进一步的研究,以了解各种增强技术对数据质量和模型结果的影响.
相关概念视频
00:57Power Expended by a Constant Force
7.8K
The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
7.8K
01:10Work and Energy for Variable Forces
4.8K
When an object is acted upon by a variable force, the amount of work done and the change in energy of the object can be more complex to calculate compared to when a constant force is applied. Work is the product of force and displacement, while energy is the capacity of a system to do work. When a constant force is applied to an object, the work done can be calculated as the product of the force and the distance moved in the direction of the force. However, when a variable force is applied, the...
4.8K
01:29Distance Problem
219
When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...
219