Newman, M. E. J. - Santa Fe Institute - 2001
Recent work has demonstrated that many social networks, and indeed many networks of other types also, have broad … distributions of vertex degree. Here we show that this has a substantial impact on the shape of ego-centered networks, i.e., sets of … methods based on ego-centered networks, such as snowball sampling and the Òripple effect.Ó In particular, we argue that oneÕs …