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

描述(申请人提供)：基于智能手机收集的数据了解生活空间特征项目摘要智能手机是一种很有前途的收集个人身体活动、出行方式和生活空间数据的设备。这项建议与老年病学和空间流行病学专家合作，将传统的生活空间措施转换并增强为基于智能手机的措施。该方案利用地理信息系统(GIS)、信号处理和空间统计方法，旨在开发一套处理智能手机收集的数据的方法，以生成适合临床干预的生命空间信息。具体地说，它从手机收集的GPS和加速计数据中估计活动的位置、持续时间和身体强度信息。然后，这些信息被整合起来，以产生新的生活空间衡量标准。拟议的生活空间测量将使用志愿者收集并由地理信息系统汇编的数据进行校准和验证。综上所述，本研究将显著提高我们对智能手机采集的生活空间特征的理解。智能手机数据处理模板不仅将直接有利于老年患者的临床干预，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.