A Trust Application in Participatory Sensing: Elder Reintegration

Whatever traveling abroad or within their’s own cities, everyone aims at optimizing their route in terms of time, distance or even sightseeing. But, finding the best path in a crowded city is very challenging in terms of continuous changing traffic conditions, road maintenance state and user needs. Most people are busy with daily-basis activities, but elders tend to walk more and, therefore, they develop expertise on the traffic state and/or the presence of works going on the roads. Our driving ides is to take advantage of the knowledge that elderly can gather. For example, a tourist can go sightseeing in a new city by using an elder’s advice. When decisions are based on information collected from other individual, trust management is a key problem. Also in our case, we must deal with the problem of the freshness of the elder’s information and the trustworthiness of their knowledge. Our work presents a solution for this issue by proposing a new trust management in participatory sensing for path optimization using cloud based services.