Four packages in R are analyzed to carry out sentiment analysis. All packages allow to
define custom dictionaries. Just one-Sentiment R-properly accounts for the presence of …

By Asian digital economy, we refer to high-tech developments, business and social
transformations, and information-driven changes in the region’s growth. We discuss its background …

Concentration indices are employed to measure the level of competition within an industry.
Among the several indices proposed in the literature, the Herfindahl-Hirschman Index (HHI) …

Waxman graphs are a popular class of random graphs used for modelling the Internet
topology, especially for the intra-domain part. When used for network modelling purposes their …

Agent-based models are now largely adopted to describe how opinions emerge in a group
of people. This survey provides an analysis of the literature on the subject, highlighting the …

The determination of node centrality is a fundamental topic in social network studies. As an
addition to established metrics, which identify central nodes based on their brokerage power, …

The sharing economy proposes a new approach to designing and delivering products and
services, that aims at avoiding waste, improving efficiency, and favoring bottom-up change. In …

Wind power is one of the primary renewable sources that are getting increasing support as
a means of addressing climate changes. The debate on its use takes place on social media …

… By simply introducing the relation (1) in the foregoing expressions and using the
truncated Riemann Zeta function ζ N α = ∑ i=1 N i −α (see Naldi, 2001), the concentration …

Cloud storage is fast securing its role as a major repository for both consumers and business
customers. Many companies now offer storage solutions, sometimes for free for limited …