Social media corporations as actors of counter-terrorism

Graph Theory, Social Networks and Counter Terrorism

Transnational Corporations as ‘Keystone Actors’ in Marine Ecosystems

Keystone species have a disproportionate influence on the structure and function of ecosystems. Here we analyze whether a keystone-like pattern can be observed in the relationship between transnational corporations and marine ecosystems globally. We show how thirteen corporations control 11-16% of the global marine catch (9-13 million tons) and 19-40% of the largest and most valuable stocks, in...

Firms as Social Actors

This essay asks what firms are, whether they are ‘real’ social actors, and whether their actions can be traced without remainder to the actions of living people or whether there is some irreducible aspect of their existence or operation that must be attributed to the organization itself. It describes firms as ongoing, multilateral relational contracts from whose operation – that is, from perfor...

Tutorial: Identifying Malicious Actors on Social Media

Online social media platforms are severely compromised by the existence of malicious actors such as bots on Twitter, vandals on Wikipedia, fake accounts on Facebook, trolls on Twitter and Slashdot, and spammers who seem to be omnipresent. This tutorial presents methods to identify malicious actors in at least 4 settings: Twitter, Facebook, Slashdot, and Wikipedia. We will look at 4 broad catego...

Software Actors for Continuous Social Media Analysis

Social media analysis is rapidly becoming a widespread tool for various applications. Motivations for interest range from commercial marketing to the monitoring of social trends and political opinions. This work presents an actorbased platform, augmented with machine learning algorithms. To evaluate its possible application for the continuous analysis of social media streams, we also present a ...