Abstract
Analyses of change of perspectives are theoretically linked to the news performance and democratic function of the media (McQuail, 1992). This construct is related to viewpoint diversity and the normative expectation that different views should be presented in news coverage (Napoli & Gillis, 2008). In addition, more recent analysis focus on different perspective articulated in user comments, often linked to theories of deliberation (Baden & Springer, 2015).