***** To join INSNA, visit http://www.insna.org ***** Prabir, The term 'scale free' is a very unfortunate (and misleading) term that was spread based on the terminology choice of some individuals. (Some people on this mailing list who know me are probably laughing their heads off and expecting me to go into one of my usual rants. I'll spare you this time.) It is used to refer to networks with degree distributions given by power laws (or, for real data, have power law tails) because a commonality of these sorts of scaling laws (which is different from scales, by the way, despite the similar terminology) one finds in fractal structures. The thing is that networks with those degree distributions _can_ have scales, as discussed in gory detail by John Doyle and collaborators. It's better to just state the power law aspect of it when one's network has that feature and not comment on whether or not there are scales unless one goes beyond the degree distribution. One of Doyle's papers that discusses this is here: http://arxiv.org/abs/cond-mat/0501169 I hope this helps. ----- Mason > > Dear all, > Could you please give me some reference on Scale-free network? > Why it is called scale-free? Please explain a bit to me. > > Thank you for your kind help. _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.