eprintid: 2123
rev_number: 7
eprint_status: archive
userid: 6
dir: disk0/00/00/21/23
datestamp: 2014-01-24 13:38:10
lastmod: 2014-01-24 13:38:10
status_changed: 2014-01-24 13:38:10
type: monograph
metadata_visibility: show
creators_name: Quattrociocchi, Walter
creators_name: Conte, Rosaria
creators_name: Lodi, Elena
creators_id: walter.quattrociocchi@imtlucca.it
creators_id: 
creators_id: 
title: Opinions within media, power and gossip
ispublished: submitted
subjects: QA75
divisions: CSA
full_text_status: none
monograph_type: working_paper
keywords: opinion dynamics; social influence; gossip; media; agenda-setting
abstract: Despite the increasing diffusion of the Internet technology, TV remains the principal medium of communication. People's perceptions, knowledge, beliefs and opinions about matter of facts get (in)formed through the information reported on by the mass-media. However, a single source of information (and consensus) could be a potential cause of anomalies in the structure and evolution of a society. Hence, as the information available (and the way it is reported) is fundamental for our perceptions and opinions, the definition of conditions allowing for a good information to be disseminated is a pressing challenge. In this paper starting from a report on the last Italian political campaign in 2008, we derive a socio-cognitive computational model of opinion dynamics where agents get informed by different sources of information. Then, a what-if analysis, performed trough simulations on the model's parameters space, is shown. In particular, the scenario implemented includes three main streams of information acquisition, differing in both the contents and the perceived reliability of the messages spread. Agents' internal opinion is updated either by accessing one of the information sources, namely media and experts, or by exchanging information with one another. They are also endowed with cognitive mechanisms to accept, reject or partially consider the acquired information. 
date: 2011
date_type: published
number:  
publisher: ArXiv
pages: 20
institution: IMT Institute for Advanced Studies Lucca
official_url: http://arxiv.org/abs/1102.2336
related_url_url: http://arxiv.org/pdf/1102.2336v1.pdf
citation:   Quattrociocchi, Walter and Conte, Rosaria and Lodi, Elena  Opinions within media, power and gossip.  Working Paper  # /2011    ArXiv       (Submitted)