Posts tagged ‘embeddedness’

Article: Clustering in Weighted Networks

TripletA paper called “Clustering in Weighted Networks” that I have co-authored will be published in Social Networks. Although many social network measures exist for binary networks and many theories differentiate between strong and weak ties, few measures have been generalised so that they can be applied to weighted networks and retain the information encoded in the weights of ties. One of these measures is the global clustering coefficient, which measures embeddedness or, more specifically, the likelihood of a triplet being closed by a tie so that it forms a triangle. This article proposes a generalisation of this key network measure to weighted networks.

Continue Reading April 3, 2009 at 12:00 am 7 comments

Article: Patterns and Dynamics of Users’ Behaviour and Interaction: Network Analysis of an Online Community

Online Social NetworkA paper called “Patterns and Dynamics of Users’ Behaviour and Interaction: Network Analysis of an Online Community” that I have co-authored will be published in the Journal of the American Society for Information Science and Technology (JASIST). In this paper, we studied the evolution of a variety of properties in an online community, including how users create, reciprocate, and deepen relationships with one another, variations in users’ gregariousness and popularity, reachability and typical distances among users, and the degree of local redundancy in the community.

Continue Reading March 6, 2009 at 12:00 am 2 comments

Weighted local clustering coefficient

TripletThe generalisation of the local clustering coefficient to weighted networks by Barrat et al. (2004) considers the value of a triplet to be the average of the weights attached to the two ties that make up the triplet. In this post, I suggest three additional methods for defining the triplet value.
 
 

The content of this post has been integrated in the tnet manual, see Clustering in Weighted Networks.

January 23, 2009 at 12:00 am 1 comment

Article: Prominence and control: The weighted rich-club effect

A paper called Prominence and control: The weighted rich-club effect that I have co-authored was published in Physical Review Letters (PRL). In this paper, we proposed a new general framework for studying the tendency of prominent nodes to direct their strongest ties toward each other.

Continue Reading December 12, 2008 at 12:00 am 4 comments

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