Explosive dynamic behaviour on Twitter and in the financial market
Baku, October 11(AZERTAC). Over the past 10 years, social media has changed the way that people influence each other. By analysing data from the social networking service, Twitter, and stock trading in the financial market, researchers from the Niels Bohr Institute have shown that events in society bring rise to common behaviour among large groups of people who do not otherwise know each other The analysis shows that there are common features in user activity on Twitter and in stock market transactions in the financial market. The results are published in the scientific journal, PNAS, Proceedings of the National Academy of Sciences, USA.
“The whole idea of the study is to understand how social networks function. The strength of using the popular social media, Twitter, is that they are more than 200 million users worldwide, who write short messages about immediate experiences and impressions. This means that you can directly study human behaviour in crowds on the web. Twitter can be seen as a global social sensor,” explains Joachim Mathiesen, Associate Professor of physics at the Niels Bohr Institute at the University of Copenhagen.
Joachim Mathiesen developed a programme that could follow the use of Twitter constantly. He could see that there were periods with relatively steady activity and then there would be a very abrupt and intense upswing in activity. Suddenly there was an event that everyone had to respond to and there was an explosion in the amount of online activity.
“There arises a collective behaviour between people who otherwise do not know each other, but who are coupled together via events in society,” explains Joachim Mathiesen.