4 research outputs found
Influence of the Dynamic Social Network Timeframe Type and Size on the Group Evolution Discovery
New technologies allow to store vast amount of data about users interaction.
From those data the social network can be created. Additionally, because
usually also time and dates of this activities are stored, the dynamic of such
network can be analysed by splitting it into many timeframes representing the
state of the network during specific period of time. One of the most
interesting issue is group evolution over time. To track group evolution the
GED method can be used. However, choice of the timeframe type and length might
have great influence on the method results. Therefore, in this paper, the
influence of timeframe type as well as timeframe length on the GED method
results is extensively analysed.Comment: The 2012 IEEE/ACM International Conference on Advances in Social
Networks Analysis and Mining, IEEE Computer Society, 2012, pp. 678-68
Different Approaches to Community Evolution Prediction in Blogosphere
Predicting the future direction of community evolution is a problem with high
theoretical and practical significance. It allows to determine which
characteristics describing communities have importance from the point of view
of their future behaviour. Knowledge about the probable future career of the
community aids in the decision concerning investing in contact with members of
a given community and carrying out actions to achieve a key position in it. It
also allows to determine effective ways of forming opinions or to protect group
participants against such activities. In the paper, a new approach to group
identification and prediction of future events is presented together with the
comparison to existing method. Performed experiments prove a high quality of
prediction results. Comparison to previous studies shows that using many
measures to describe the group profile, and in consequence as a classifier
input, can improve predictions.Comment: SNAA2013 at ASONAM2013 IEEE Computer Societ