Understanding Life-Space Characteristics Based on Cell-Phone Collected Data

描述（由申请人提供）：基于智能手机收集的数据理解生活空间特征项目概述智能手机是用于收集个人的身体活动、旅行模式和生活空间的数据的有前景的设备。与老年病学和空间流行病学专家合作，该提案将传统的生活空间措施转化并增强为基于智能手机的措施。利用地理信息系统（GIS），信号处理和空间统计方法，该提案旨在开发一套方法来处理智能手机收集的数据，以生成适合临床干预的生活空间信息。具体来说，它可以从手机收集的GPS和加速度计数据中估计活动的位置、持续时间和身体强度信息。然后将这些信息综合起来，以产生新的生命空间测量方法。将利用志愿人员收集并由地理信息系统汇编的数据对拟议的生命空间计量进行校准和验证。综上所述，本研究将大大提高我们对智能手机收集的生活空间特征的理解。智能手机数据处理的模板不仅将直接有益于老年患者的临床干预，而且还将有助于了解患者在各种健康状况下的空间行为。

DESCRIPTION (provided by applicant): Understanding life-space characteristics based on smart-phone collected data Project Summary Smart-phone is a promising device for collecting data of individuals' physical activity, travel mode, and life-space. In collaboration with experts n geriatrics and spatial epidemiology, this proposal translates and enhances traditional life-space measures into smart-phone based ones. Using geographic information system (GIS), signal processing, and spatial statistical methods, this proposal aims to develop a set of methods for processing smart-phone collected data to generate life-space information that is suitable for clinical intervention. Specifically, it estimates the location, duration, and physical intensity information of activities from the phone collected GPS and accelerometer data. Such information is then integrated to generate new life-space measures. The proposed life-space measures will be calibrated and validated using data collected by volunteers and compiled by GIS. In summary, this study will significantly enhance our understanding of life-space characteristics collected by smart-phone. The template of smart- phone data processing will not only directly benefit clinical intervention of geriatric patients, but will also facilitate the understanding of patients' spatial behaviors in various health conditions.