نتایج جستجو برای: generalized power law distribution

تعداد نتایج: 1329391  

Journal: :international journal of nonlinear analysis and applications 2013
b. afhami m. madadi

in this paper, we derive the exact analytical expressions for the shannon entropy of generalized orderstatistics from pareto-type and related distributions.

In this paper, we consider a form of the generalized logistic distribution named symmetric extended generalized logistic distribution or extended type III generalized logistic distribution. The distribution is derived by compounding a two-parameter generalized Gumbel distribution with a two-parameter generalized gamma distribution. The cumulative distribution and some properties of this distrib...

Journal: :CoRR 2004
Noam Berger Christian Borgs Jennifer T. Chayes R. M. D'Souza Robert D. Kleinberg

We introduce a family of one-dimensional geometric growth models, constructed iteratively by locally optimizing the tradeoffs between two competing metrics, and show that this family is equivalent to a family of preferential attachment random graph models with upper cutoffs. This is the first explanation of how preferential attachment can arise from a more basic underlying mechanism of local co...

2007
Thomas Karagiannis Jean-Yves Le Boudec Milan Vojnović

We examine the fundamental properties that determine the basic performance metrics for opportunistic communications. We first consider the distribution of inter-contact times between mobile devices. Using a diverse set of measured mobility traces, we find as an invariant property that there is a characteristic time, order of half a day, beyond which the distribution decays exponentially. Up to ...

2015
Flor A. Espinoza Stanly L. Steinberg

We use a large single particle tracking data set to analyze the short time and small spatial scale motion of quantum dots labeling proteins in cell membranes. Our analysis focuses on the jumps which are the changes in the position of the quantum dots between frames in a movie of their motion. Previously we have shown that the directions of the jumps are uniformly distributed and the jump length...

2006
L. Ribeiro F. L. Dotti R. da Silva

The webgraph is the graph generated from the link structure of the web pages. In this graph, each node represents a web page and each edge is a hyperlink from one page to another. The webgraph has a particular structure, that is not similar to other known graphs, and it grows continuously. Nowadays it contains more then 25 billion nodes and about 400 billion edges. Even some properties of this ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
A Ordemann M Porto H Eduardo Roman S Havlin

We study the asymptotic shape of self-avoiding random walks (SAW) on the backbone of the incipient percolation cluster in d-dimensional lattices analytically. It is generally accepted that the configurational averaged probability distribution function for the end-to-end distance r of an N step SAW behaves as a power law for r-->0. In this work, we determine the corresponding exponen...

2001
Motoko Suzuki Masahiro Morikawa

Gamma ray bursts (GRBs) are known to have short-time variability and power-law behavior with the index −1.67 in the power spectrum density. Reanalyzing the expanded data, we have found a) the power-law comes from the global profile of the burst and not from the self-similar shots nor rapid fluctuations in the luminosity profile. b) The power indices vary from burst to burst and the value −1.67 ...

Journal: :Discrete Mathematics 2011
Pawel Pralat

We study a generalized version of the protean graph (a probabilistic model of the World Wide Web) with a power law degree distribution, in which the degree of a vertex depends on its age as well as its rank. The main aim of this paper is to study the behaviour of the protean process near the connectivity threshold. Since even above the connectivity threshold it is still possible that the graph ...

2001
Dafang Zheng P. M. Hui N. F. Johnson

We present a generalized dynamical model describing the sharing of information, and corresponding herd behavior, in a population based on the recent model proposed by Egúiluz and Zimmermann [Phys. Rev. Lett. 85, 5659 (2000)]. By introducing a size-dependent probability for dissociation of a cluster, we show that the exponent characterizing the distribution of cluster sizes becomes model-depende...

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