洞察力滑雪:通过高山滑雪的物理属性选择,开发可解释的雪地表现模型
Jonathan Audet1, Abdelghani Benghanem1, Alexis Lussier-Desbiens1,2
1Createk Design Lab, Université de Sherbrooke, 3000 bd de l'Université, Sherbrooke, QC J1K 2R1 Canada.
概括
本研究引入了一种自动化方法,使用最小的物理属性预测高山滑雪表现,减少滑雪评估中的资源强度和主观性. 这些发现简化了识别关键滑雪属性,以便更好地设计和消费者选择.
科学领域:
- 运动工程 运动工程
- 材料科学 材料科学 材料科学
- 生物力学 生物力学
背景情况:
- 在雪地上的高山滑雪评估至关重要,但资源密集型和主观.
- 客观的物理测量是可用的,但没有充分利用性能预测.
研究的目的:
- 开发一种自动化的方法来利用物理属性预测雪地滑雪表现.
- 为了确定定义滑雪表现的最低一组物理属性.
主要方法:
- 采用弹性净回归,引导重新抽样和智能特征选择.
- 利用了192个高山滑雪的广泛的物理测量和雪上评估指标.
- 在10个滑雪类别中验证了预测模型.
主要成果:
- 实现了平均平均绝对错误排名预测的15%.
- 识别了使用平均不到三个物理属性的关键性能定义属性.
- 显示了滑雪表现的有希望的预测能力.
结论:
- 自动化方法提供了一个简单,有效和全面的方法来评估滑雪表现.
- 这些发现对高山滑雪设计和消费者指导有重大影响.
- 该方法促进了各种评估来源的整合,以持续改进.
相关概念视频
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
101
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
101
What is Natural Selection?
118.9K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
118.9K
Clearance Models: Noncompartmental Models
100
Clearance is a pharmacokinetic parameter traditionally defined by compartment models, signifying the rate at which a drug is expelled from the body. However, a noncompartmental model offers an alternative method for assessing clearance, primarily employing empirical data obtained after administering a single drug dose.
The noncompartmental approach capitalizes on extensive sampling data, correlating the volume of distribution to systemic exposure and the administered dosage. This method enables...
The noncompartmental approach capitalizes on extensive sampling data, correlating the volume of distribution to systemic exposure and the administered dosage. This method enables...
100
Clearance Models: Physiological Models
120
Drug clearance is a critical pharmacokinetic process involving the irreversible removal of drugs from the body through various organs over a specified time period. Physiological models are indispensable in determining organ-specific clearance, defined by the proportion of the drug eliminated per unit of time from the organ's blood volume.
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
120
Pharmacokinetic Models: Comparison and Selection Criterion
149
Physiological and compartmental models are valuable tools used in studying biological systems. These models rely on differential equations to maintain mass balance within the system, ensuring an accurate representation of the dynamic processes at play.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
Physiological models take a detailed approach by considering specific molecular processes. They can predict drug distribution, metabolism, and elimination changes, providing a comprehensive understanding of how drugs interact with the body.
149
Multiple Regression
3.2K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.2K


