Tag Archives: SNA

When followers are not enough

[italian version] We have just gathered a brand new datased of FriendFeed data (you can download it in the Data section, it’s named 2010-a dataset ). Since it is considerably larger than our previous database we decided to test few more hypotesis on information propagation in SNSs. One of the key concepts speaking about the [...]

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To whom are you speaking? Egonetwork over time

Last version of Gephi introduced some very nice feature. It is now possible to work with dynamic networks that can easily be observed in their evolution. Working with dynamic networks is crucial when you are dealing with social networks, like those existing in microblogging sites, that show a high level of variability: social connections quickly change over time and – even if the connection does not disappear – the use of a specific connection can be very different from time to time. Observing such a phenomenon could be difficult with a static SNA but with a dynamic perspective it becomes quite simple.

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Mapping FriendFeed Network: switching the perspective

Recently we’ve posted a visualisation of the Italian Network of FriendFeed. Such a map was an interesting and general perspective showing how a complex network can be visualised. Obviously we we’re dealing with social networks or microblogging sites we’re dealing with a complex network emerging from many different egonetworks. How is the perspective on the same Network (Italian Friendfeed Users) if we observe  it from the inside?

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Visualising Italian Friendfeed Network

Recently we’ve posted on Friendfeed a visualisation of Italian Friendfeed users extracted from the data we’ve collected in 2009. Since the map started an interesting debate (you can read it here – in Italian -) we thought to write a short post explaining how the map has been done and what are its limits and [...]

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July RoundUp

July has been a month fully packed of SIGSNA activities. At the beginning we’ve been in Oxford for the Research Methods festival [reported here] and after that we had just a few days at home and we had to fly to Gothenburg for the International Sociological Association Conference (ISA 2010). Due to the high interdisciplinary [...]

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Visualizing information spread

We are currently working on information spreading in FriendFeed context. One of the best things about SIGSNA data is that by being a comprehensive set of data of two weeks is possible to track how specific  information – identifiable by a set of keywords – spreads through the network of users. This is what we [...]

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