Matern Dierck, Condurache Alexandru, Mertins Alfred
Annu Int Conf IEEE Eng Med Biol Soc. 2013;2013:7318-21. doi: 10.1109/EMBC.2013.6611248.
In this paper, we discuss an event detection system using a wireless sensor network in the Ambient Assisted Living context. The sensors measure the environment in which the patients live, not vital parameters of the patient him- or herself, which is important in order to respect the privacy and informational self-determination of the patient. The major difficulties of the given setup with sensors in the environment are that the measurements are taken in an irregular fashion (as opposed to regular sampling) and that some of the sensors may be unreliable. To tackle these problems, we propose an event-detection framework that is based on the theory of conditional random fields [1]. We conduct experiments on real-life sensor data collected from a set of eight households. The experiments show that the conditional random field is well suited for ambiance surveillance.
在本文中，我们讨论了一种在环境辅助生活背景下使用无线传感器网络的事件检测系统。传感器测量的是患者生活的环境，而非患者自身的生命体征参数，这对于尊重患者的隐私和信息自决权很重要。在环境中设置传感器的主要困难在于测量是以不规则方式进行的（与定期采样相反），并且一些传感器可能不可靠。为了解决这些问题，我们提出了一种基于条件随机场理论[1]的事件检测框架。我们对从八户家庭收集的真实传感器数据进行了实验。实验表明，条件随机场非常适合环境监测。
