Standard Network Analysis: NEWC4

Standard Network Analysis: NEWC4

Input data: NEWC4

Start time: Mon Oct 17 15:24:24 2011

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Network Level Measures

MeasureValue
Row count17.000
Column count17.000
Link count136.000
Density1.000
Components of 1 node (isolates)0
Components of 2 nodes (dyadic isolates)0
Components of 3 or more nodes1
Reciprocity1.000
Characteristic path length5.412
Clustering coefficient1.000
Network levels (diameter)14.000
Network fragmentation0.000
Krackhardt connectedness1.000
Krackhardt efficiency0.000
Krackhardt hierarchy0.000
Krackhardt upperboundedness1.000
Degree centralization0.000
Betweenness centralization0.123
Closeness centralization0.100
Eigenvector centralization0.000
Reciprocal (symmetric)?Yes

Node Level Measures

MeasureMinMaxAvgStddev
Total degree centrality0.5310.5310.5310.000
Total degree centrality [Unscaled]136.000136.000136.0000.000
In-degree centrality0.5310.5310.5310.000
In-degree centrality [Unscaled]136.000136.000136.0000.000
Out-degree centrality0.5310.5310.5310.000
Out-degree centrality [Unscaled]136.000136.000136.0000.000
Eigenvector centrality0.3430.3430.3430.000
Eigenvector centrality [Unscaled]0.2430.2430.2430.000
Eigenvector centrality per component0.2430.2430.2430.000
Closeness centrality0.1630.2320.1860.018
Closeness centrality [Unscaled]0.0100.0140.0120.001
In-Closeness centrality0.0870.3480.2230.081
In-Closeness centrality [Unscaled]0.0050.0220.0140.005
Betweenness centrality0.0000.1970.0810.064
Betweenness centrality [Unscaled]0.00023.6089.7727.738
Hub centrality0.3060.3650.3430.015
Authority centrality0.1570.5310.3260.107
Information centrality0.0520.0670.0590.004
Information centrality [Unscaled]67.77987.09676.6835.273
Clique membership count1.0001.0001.0000.000
Simmelian ties1.0001.0001.0000.000
Simmelian ties [Unscaled]16.00016.00016.0000.000
Clustering coefficient1.0001.0001.0000.000

Key Nodes

This chart shows the Agent that is repeatedly top-ranked in the measures listed below. The value shown is the percentage of measures for which the Agent was ranked in the top three.

Total degree centrality

The Total Degree Centrality of a node is the normalized sum of its row and column degrees. Individuals or organizations who are "in the know" are those who are linked to many others and so, by virtue of their position have access to the ideas, thoughts, beliefs of many others. Individuals who are "in the know" are identified by degree centrality in the relevant social network. Those who are ranked high on this metrics have more connections to others in the same network. The scientific name of this measure is total degree centrality and it is calculated on the agent by agent matrices.

Input network: NEWC4 (size: 17, density: 1)

RankAgentValueUnscaledContext*
1All nodes have this value0.531

* Number of standard deviations from the mean of a random network of the same size and density

Mean: 0.531Mean in random network: 1.000
Std.dev: 0.000Std.dev in random network: 0.000

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In-degree centrality

The In Degree Centrality of a node is its normalized in-degree. For any node, e.g. an individual or a resource, the in-links are the connections that the node of interest receives from other nodes. For example, imagine an agent by knowledge matrix then the number of in-links a piece of knowledge has is the number of agents that are connected to. The scientific name of this measure is in-degree and it is calculated on the agent by agent matrices.

Input network(s): NEWC4

RankAgentValueUnscaled
1All nodes have this value0.531

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Out-degree centrality

For any node, e.g. an individual or a resource, the out-links are the connections that the node of interest sends to other nodes. For example, imagine an agent by knowledge matrix then the number of out-links an agent would have is the number of pieces of knowledge it is connected to. The scientific name of this measure is out-degree and it is calculated on the agent by agent matrices. Individuals or organizations who are high in most knowledge have more expertise or are associated with more types of knowledge than are others. If no sub-network connecting agents to knowledge exists, then this measure will not be calculated. The scientific name of this measure is out degree centrality and it is calculated on agent by knowledge matrices. Individuals or organizations who are high in "most resources" have more resources or are associated with more types of resources than are others. If no sub-network connecting agents to resources exists, then this measure will not be calculated. The scientific name of this measure is out degree centrality and it is calculated on agent by resource matrices.

Input network(s): NEWC4

RankAgentValueUnscaled
1All nodes have this value0.531

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Eigenvector centrality

Calculates the principal eigenvector of the network. A node is central to the extent that its neighbors are central. Leaders of strong cliques are individuals who or organizations who are collected to others that are themselves highly connected to each other. In other words, if you have a clique then the individual most connected to others in the clique and other cliques, is the leader of the clique. Individuals or organizations who are connected to many otherwise isolated individuals or organizations will have a much lower score in this measure then those that are connected to groups that have many connections themselves. The scientific name of this measure is eigenvector centrality and it is calculated on agent by agent matrices.

Input network: NEWC4 (size: 17, density: 1)

RankAgentValueUnscaledContext*
1All nodes have this value0.343

* Number of standard deviations from the mean of a random network of the same size and density

Mean: 0.343Mean in random network: 0.961
Std.dev: 0.000Std.dev in random network: 0.185

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Eigenvector centrality per component

Calculates the principal eigenvector of the network. A node is central to the extent that its neighbors are central. Each component is extracted as a separate network, Eigenvector Centrality is computed on it and scaled according to the component size. The scores are then combined into a single result vector.

Input network(s): NEWC4

RankAgentValue
1All nodes have this value0.243

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Closeness centrality

The average closeness of a node to the other nodes in a network (also called out-closeness). Loosely, Closeness is the inverse of the average distance in the network from the node to all other nodes.

Input network: NEWC4 (size: 17, density: 1)

RankAgentValueUnscaledContext*
1150.2320.014-25.853
2100.2220.014-26.249
3160.2000.013-27.159
4110.1980.012-27.260
510.1930.012-27.455
630.1900.012-27.550
7140.1900.012-27.550
860.1820.011-27.904
980.1820.011-27.904
10130.1780.011-28.070

* Number of standard deviations from the mean of a random network of the same size and density

Mean: 0.186Mean in random network: 0.863
Std.dev: 0.018Std.dev in random network: 0.024

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In-Closeness centrality

The average closeness of a node from the other nodes in a network. Loosely, Closeness is the inverse of the average distance in the network to the node and from all other nodes.

Input network(s): NEWC4

RankAgentValueUnscaled
140.3480.022
290.3330.021
3170.3270.020
4120.2810.018
550.2670.017
620.2540.016
710.2500.016
8130.2460.015
960.2420.015
1070.2420.015

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Betweenness centrality

The Betweenness Centrality of node v in a network is defined as: across all node pairs that have a shortest path containing v, the percentage that pass through v. Individuals or organizations that are potentially influential are positioned to broker connections between groups and to bring to bear the influence of one group on another or serve as a gatekeeper between groups. This agent occurs on many of the shortest paths between other agents. The scientific name of this measure is betweenness centrality and it is calculated on agent by agent matrices.

Input network: NEWC4 (size: 17, density: 1)

RankAgentValueUnscaledContext*
110.19723.6084.185
2120.17821.3473.829
3170.16820.1753.644
490.13716.4783.060
5140.13215.7922.952
660.12314.7392.786
740.11513.7922.637
850.09611.4642.270
9150.0607.2501.605
10130.0566.6691.513

* Number of standard deviations from the mean of a random network of the same size and density

Mean: 0.081Mean in random network: -0.024
Std.dev: 0.064Std.dev in random network: 0.053

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Hub centrality

A node is hub-central to the extent that its out-links are to nodes that have many in-links. Individuals or organizations that act as hubs are sending information to a wide range of others each of whom has many others reporting to them. Technically, an agent is hub-central if its out-links are to agents that have many other agents sending links to them. The scientific name of this measure is hub centrality and it is calculated on agent by agent matrices.

Input network(s): NEWC4

RankAgentValue
190.365
2170.359
340.359
420.356
570.351
630.351
710.350
8110.348
9130.345
1050.345

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Authority centrality

A node is authority-central to the extent that its in-links are from nodes that have many out-links. Individuals or organizations that act as authorities are receiving information from a wide range of others each of whom sends information to a large number of others. Technically, an agent is authority-central if its in-links are from agents that have are sending links to many others. The scientific name of this measure is authority centrality and it is calculated on agent by agent matrices.

Input network(s): NEWC4

RankAgentValue
1100.531
2160.519
330.441
4150.428
580.409
620.359
7110.332
870.308
9130.306
1060.300

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Information centrality

Calculate the Stephenson and Zelen information centrality measure for each node.

Input network(s): NEWC4

RankAgentValueUnscaled
1170.06787.096
2120.06584.883
340.06382.625
490.06381.955
5140.06179.534
650.06078.648
760.05977.490
810.05976.946
9130.05876.043
1070.05875.917

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Clique membership count

The number of distinct cliques to which each node belongs. Individuals or organizations who are high in number of cliques are those that belong to a large number of distinct cliques. A clique is defined as a group of three or more actors that have many connections to each other and relatively fewer connections to those in other groups. The scientific name of this measure is clique count and it is calculated on the agent by agent matrices.

Input network(s): NEWC4

RankAgentValue
1All nodes have this value1.000

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Simmelian ties

The normalized number of Simmelian ties of each node.

Input network(s): NEWC4

RankAgentValueUnscaled
1All nodes have this value1.000

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Clustering coefficient

Measures the degree of clustering in a network by averaging the clustering coefficient of each node, which is defined as the density of the node's ego network.

Input network(s): NEWC4

RankAgentValue
1All nodes have this value1.000

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Key Nodes Table

This shows the top scoring nodes side-by-side for selected measures.

RankBetweenness centralityCloseness centralityEigenvector centralityEigenvector centrality per componentIn-degree centralityIn-Closeness centralityOut-degree centralityTotal degree centrality
1115111411
21210222922
317163331733
49114441244
5141555555
663666266
7414777177
8568881388
9158999699
10131310101071010