Description
A BME Matematikai Intézet (Összintézeti)
Matematikai Modellalkotás Szemináriuma
Kivonat:
We tend to live larger and larger parts of our lives on online social network sites. It has thus become the gold mine for sociologists and network scientists. I will discuss the life and death of the Hungarian online social network site iWiW. I show that its collapse was due to cascade effects as people left the sites when about 50% of their friends had become inactive. Furthermore I show that the information one obtains from analysing the network structure of the online social contacts can be very different from real ones as these sites perform a nontrivial sampling of the society. In the end I will present a model of social networks and show what may cause echo chambers in human society.
The talk is held in Hungarian!
Az előadás nyelve magyar!