Many works related to Twitter aim at characterizing its users in some way: role on the service
(spammers, bots, organizations, etc.), nature of the user (socio-professional category, age …

Given the task of finding influencers (opinion makers) for a given domain in a social network,
we investigate (a) what is the relative importance of domain and authority signals,(b) what is …

Abstract Online Reputation Management systems aim at identifying and classifying Twitter
influencers due to their importance for brands. Current methods mainly rely on metrics …

Abstract Thanks to Social Networks (SNs), influencers have gained a crucial role in the
business ecosystem. They are recognized for their substantial impact and credibility …

Given the task of finding influencers of a given domain (ie banking) in a social network, in
this paper we investigate (i) the importance of characterizing followers for the automatic …

The state provides various services to citizens. Whereas the provision of these services
electronically is an essential part of the e-government strategy, it is not enough. Thus …

The expression Complex networks started to be used in the late s and early s to name
graphs used to model real-world complex systems [,,]. Here, the term system refers to a set of …