Application of Modified PageRank Algorithm for Anomaly Detection in Movements of Older Adults.

IF 3.1 Q2 HEALTH CARE SCIENCES & SERVICES
International Journal of Telemedicine and Applications Pub Date : 2019-03-11 eCollection Date: 2019-01-01 DOI:10.1155/2019/8612021
Shahram Payandeh, Eddie Chiu
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引用次数: 6

Abstract

It is a well-known statistic that the percentage of our older adult population will globally surpass the other age groups. A majority of the elderly would still prefer to keep an active life style. In support of this life style, various monitoring systems are being designed and deployed to have a seamless integration with the daily living activities of the older adults while preserving various levels of their privacy. Motion tracking is one of these health monitoring systems. When properly designed, deployed, integrated, and analyzed, they can be used to assist in determining some onsets of anomalies in the health of elderly at various levels of their Movements and Activities of Daily Living (MADL). This paper explores how the framework of the PageRank algorithm can be extended for monitoring the global movement patterns of older adults at their place of residence. Through utilization of an existing dataset, the paper shows how the movement patterns between various rooms can be represented as a directed graph with weighted edges. To demonstrate how PageRank can be utilized, a base graph representing a normal pattern can be defined as what can be used for further anomaly detection (e.g., at some instances of observation the measured movement pattern deviates from what is previously defined as a normal pattern). It is shown how the PageRank algorithm can detect simulated change in the pattern of motion when compared with the base-line normal pattern. This feature can offer a practical approach for detecting anomalies in movement patterns associated with older adults in their own place of residence and in support of aging in place paradigm.

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改进PageRank算法在老年人运动异常检测中的应用。
这是一个众所周知的统计数据,我们老年人口的百分比将超过全球其他年龄组。大多数老年人仍然喜欢保持积极的生活方式。为了支持这种生活方式,各种监控系统正在设计和部署,以便与老年人的日常生活活动无缝结合,同时保护他们不同程度的隐私。运动跟踪就是其中一种健康监测系统。当适当设计、部署、集成和分析时,它们可用于帮助确定老年人在不同水平的运动和日常生活活动(MADL)中健康异常的一些发作。本文探讨了如何扩展PageRank算法的框架,以监测老年人在其居住地的全球移动模式。利用现有的数据集,展示了如何将不同房间之间的移动模式表示为带有加权边的有向图。为了演示如何利用PageRank,可以将表示正常模式的基础图定义为可用于进一步异常检测的基础图(例如,在某些观察实例中,测量的移动模式偏离了先前定义的正常模式)。它显示了PageRank算法如何在与基线正常模式比较时检测运动模式的模拟变化。该功能可以提供一种实用的方法,用于检测与老年人在自己的居住地相关的运动模式异常,并支持原地老龄化范式。
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来源期刊
CiteScore
6.90
自引率
2.30%
发文量
19
审稿时长
12 weeks
期刊介绍: The overall aim of the International Journal of Telemedicine and Applications is to bring together science and applications of medical practice and medical care at a distance as well as their supporting technologies such as, computing, communications, and networking technologies with emphasis on telemedicine techniques and telemedicine applications. It is directed at practicing engineers, academic researchers, as well as doctors, nurses, etc. Telemedicine is an information technology that enables doctors to perform medical consultations, diagnoses, and treatments, as well as medical education, away from patients. For example, doctors can remotely examine patients via remote viewing monitors and sound devices, and/or sampling physiological data using telecommunication. Telemedicine technology is applied to areas of emergency healthcare, videoconsulting, telecardiology, telepathology, teledermatology, teleophthalmology, teleoncology, telepsychiatry, teledentistry, etc. International Journal of Telemedicine and Applications will highlight the continued growth and new challenges in telemedicine, applications, and their supporting technologies, for both application development and basic research. Papers should emphasize original results or case studies relating to the theory and/or applications of telemedicine. Tutorial papers, especially those emphasizing multidisciplinary views of telemedicine, are also welcome. International Journal of Telemedicine and Applications employs a paperless, electronic submission and evaluation system to promote a rapid turnaround in the peer-review process.
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