A smart middleware to perform semantic discovery and trust evaluation for the Internet of Things

The swarm concept in Internet of Things (IoT) describes the cooperation of independent and heterogeneous devices to execute tasks. Components of a swarm system must seamlessly discover other objects. Semantic discovery is an approach to perform this task and can be performed either by automated or manual ways, but not often taking account information trust. This article presents a middleware that performs automatic IoT semantic discovery and determining information trust. Experimental results, carried out with real data from smart cities projects are presented.