The Effects of Restrictions on Number of Connections in OSNs: A Case-Study on Twitter
نویسندگان
چکیده
Most popular Online Social Networks (OSNs) in today’s world, such as Facebook, Orkut and Twitter impose restrictions on the number of friends / connections that a member can have in the network. This is primarily due to two reasons to limit spam and to reduce the strain on the system due to member-to-all-friends communication. We study the effects of such restrictions on node-degree, on the topological properties of the OSN networks, taking the restriction imposed by Twitter as a case-study. To the best of our knowledge, this is the first study of its nature, on any OSN. Towards this end, we use a network growth model based on preferential attachment to develop an analytical framework that can be used to assess the effects of various forms of restrictions on OSNs, as well as to design new restrictions of varying rigidity.
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