Consider the following model to grow simple networks. At time t = 1 we start with a complete network with no 6 nodes. At each time step > 1 a new node is added to the network. The node arrives together with m = 2 new links, which are connected to m = 2 different nodes already present in the network. The probability II, that a new link is connected to node i is: N(t-1) II¿ = ki 1 Z - = with Z (k; 1) j=1 where k; is the degree of node i, and N(t - 1) is the number of nodes in the network at time t 1. - (g) Calculate the probability of finding a node with 1000 links in the network obtained in point (f). Calculate the probability of finding a node with 1000 links in a Erdös-Rènyi random graphs with the same number of nodes and links as in the network obtained in point (f).

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.CR: Chapter 12 Review
Problem 84CR
Question
Consider the following model to grow simple networks. At time t = 1 we start with a
complete network with no 6 nodes. At each time step > 1 a new node is added to
the network. The node arrives together with m = 2 new links, which are connected to
m = 2 different nodes already present in the network. The probability II, that a new
link is connected to node i is:
N(t-1)
II¿
=
ki 1
Z
-
=
with Z (k; 1)
j=1
where k; is the degree of node i, and N(t - 1) is the number of nodes in the network at
time t 1.
-
(g) Calculate the probability of finding a node with 1000 links in the network
obtained in point (f). Calculate the probability of finding a node with 1000 links
in a Erdös-Rènyi random graphs with the same number of nodes and links as in
the network obtained in point (f).
Transcribed Image Text:Consider the following model to grow simple networks. At time t = 1 we start with a complete network with no 6 nodes. At each time step > 1 a new node is added to the network. The node arrives together with m = 2 new links, which are connected to m = 2 different nodes already present in the network. The probability II, that a new link is connected to node i is: N(t-1) II¿ = ki 1 Z - = with Z (k; 1) j=1 where k; is the degree of node i, and N(t - 1) is the number of nodes in the network at time t 1. - (g) Calculate the probability of finding a node with 1000 links in the network obtained in point (f). Calculate the probability of finding a node with 1000 links in a Erdös-Rènyi random graphs with the same number of nodes and links as in the network obtained in point (f).
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