Trust-based decision making for environmental health community of interest IoT systems

With the onset of the Internet of Things (IoT) era, the number of devices and sensors is increasing tremendously. This paper is concerned with Health IoT consisting of various devices carried by members of an environmental health community of interest (CoI). We propose trust based information sharing among the CoI users of these IoT devices, so that a collective knowledge base can be built to rate the environment at a particular location and at a given time. This rated knowledge of various environments would enable a user's mobile device to automatically decide whether or not the user should visit this place/environment. Our trust-based decision making framework considers risk classification, reliability trust, and loss of health probability as three design dimensions for decision making. Performance data are shown to demonstrate the feasibility of our approach.