Federated semantic nodes to scale search process in the IoT

mUX: The Journal of Mobile User Experience

Table 3 Measuring time to discover a connected device

Number of triples contained in the store	Time required to query the store (in seconds)
10	0,0006
100	0,0009
1000	0,0042
10000	0,6959
100000	19,3377

Table 3 presents the measurements that were obtained when discovering connected devices of which semantic descriptions were stored in a triple store. The request consisted of finding connected devices having a specific attribute (e.g. has Capability set to “light”). We increased the semantic descriptions managed by the store from ten triples to one hundred thousand.