Using simulation to support making decisions imposes that models are thoroughly validated. We discuss widely adopted techniques for testing the validity of simulation results against real observations, as various techniques may be employed depending on the statistical features and the number of...

In this paper the authors studied how Greek politicians use their Internet presence and in particular social media to engage citizens, examining the perceived significance of establishing an online presence and the motivating and hindering factors for doing so. The authors also studied how...

Blockchains are attracting the attention of stakeholders in many industrial domains, including the logistics and supply chain industries. Blockchain technology can effectively contribute in recording every single asset throughout its flow on the supply chain, contribute in tracking orders,...