用混合数据分区和离散的同时扰乱进行行为干预的异形动态建模 随机近似
Rachael T Kha1, Daniel E Rivera1, Predrag Klasnja2
1R. T. Kha and D. E. Rivera are with the Control Systems Engineering Lab (CSEL) in the School for Engineering of Matter, Transport and Energy at Arizona State University, Tempe, AZ 85281 USA.
概括
离散同时扰乱随机近似 (DSPSA) 有效地识别了个性化行为干预模型的特征. 这种方法通过分析个人参与者数据来优化干预,以改善体育活动促进.
科学领域:
- 行为科学 行为科学
- 计算机建模 计算建模
- 个性化干预 个性化干预
背景情况:
- 个性化行为干预需要对个体受试者准确的动态模型.
- 现有的模型特征和参数估计方法可能是计算密集的.
- 优化干预措施,如促进体育活动,需要高效的建模技术.
研究的目的:
- 呈现离散同时扰动随机近似 (DSPSA) 作为一种有效的例行方法,用于特征动态模型的开发.
- 评估DSPSA在确定个性化行为干预模型特征和参数方面的有效性.
- 使用现实世界的干预数据,将DSPSA性能与详尽的搜索方法进行比较.
主要方法:
- 在自动回归与异源输入 (ARX) 模型中应用DSPSA用于特征选择和回归器顺序的确定.
- 使用来自"Just Walk"体育活动干预研究的参与者数据.
- 采用各种分区的估计和验证数据来评估模型的稳定性.
主要成果:
- DSPSA有效地和快速地估计了个人参与者的行走行为模型.
- DSPSA在搜索模型特征和回归器顺序方面被证明是有效的,在速度上表现优于详尽的搜索.
- 该研究强调了数据分区策略在特征建模中的重要性.
结论:
- DSPSA是一种有价值和有效的方法,用于开发个性化行为干预的特征动态模型.
- 估计模型可以为控制系统的开发提供信息,以优化干预影响.
- 仔细考虑数据分区对于强大的特征建模至关重要.
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