Standard Network Analysis: GAMANEG

Standard Network Analysis: GAMANEG

Input data: GAMANEG

Start time: Mon Oct 17 13:39:45 2011

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Network Level Measures

MeasureValue
Row count16.000
Column count16.000
Link count29.000
Density0.242
Components of 1 node (isolates)1
Components of 2 nodes (dyadic isolates)0
Components of 3 or more nodes1
Reciprocity1.000
Characteristic path length2.076
Clustering coefficient0.173
Network levels (diameter)4.000
Network fragmentation0.125
Krackhardt connectedness0.875
Krackhardt efficiency0.835
Krackhardt hierarchy0.000
Krackhardt upperboundedness1.000
Degree centralization0.181
Betweenness centralization0.132
Closeness centralization0.122
Eigenvector centralization0.242
Reciprocal (symmetric)?Yes

Node Level Measures

MeasureMinMaxAvgStddev
Total degree centrality0.0000.4000.2420.118
Total degree centrality [Unscaled]0.0006.0003.6251.763
In-degree centrality0.0000.4000.2420.118
In-degree centrality [Unscaled]0.0006.0003.6251.763
Out-degree centrality0.0000.4000.2420.118
Out-degree centrality [Unscaled]0.0006.0003.6251.763
Eigenvector centrality0.0000.5240.3130.165
Eigenvector centrality [Unscaled]0.0000.3710.2210.117
Eigenvector centrality per component0.0000.3470.2070.109
Closeness centrality0.0630.3750.3200.075
Closeness centrality [Unscaled]0.0040.0250.0210.005
In-Closeness centrality0.0630.3750.3200.075
In-Closeness centrality [Unscaled]0.0040.0250.0210.005
Betweenness centrality0.0000.1910.0670.061
Betweenness centrality [Unscaled]0.00020.0427.0636.357
Hub centrality0.0000.5240.3130.165
Authority centrality0.0000.5240.3130.165
Information centrality0.0000.0850.0620.023
Information centrality [Unscaled]0.0001.7521.2910.476
Clique membership count0.0004.0001.3131.310
Simmelian ties0.0000.3330.1420.127
Simmelian ties [Unscaled]0.0005.0002.1251.900
Clustering coefficient0.0000.5000.1730.163

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: GAMANEG (size: 16, density: 0.241667)

RankAgentValueUnscaledContext*
1NAGAD0.4006.0001.479
2GAMA0.4006.0001.479
3GAVEV0.3335.0000.857
4KOTUN0.3335.0000.857
5GAHUK0.3335.0000.857
6GEHAM0.3335.0000.857
7NAGAM0.2674.0000.234
8NOTOH0.2674.0000.234
9ASARO0.2674.0000.234
10UHETO0.2674.0000.234

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

Mean: 0.242Mean in random network: 0.242
Std.dev: 0.118Std.dev in random network: 0.107

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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): GAMANEG

RankAgentValueUnscaled
1NAGAD0.4006.000
2GAMA0.4006.000
3GAVEV0.3335.000
4KOTUN0.3335.000
5GAHUK0.3335.000
6GEHAM0.3335.000
7NAGAM0.2674.000
8NOTOH0.2674.000
9ASARO0.2674.000
10UHETO0.2674.000

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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): GAMANEG

RankAgentValueUnscaled
1NAGAD0.4006.000
2GAMA0.4006.000
3GAVEV0.3335.000
4KOTUN0.3335.000
5GAHUK0.3335.000
6GEHAM0.3335.000
7NAGAM0.2674.000
8NOTOH0.2674.000
9ASARO0.2674.000
10UHETO0.2674.000

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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: GAMANEG (size: 16, density: 0.241667)

RankAgentValueUnscaledContext*
1NAGAD0.5240.3710.080
2GAMA0.5100.3610.033
3GEHAM0.4850.343-0.049
4GAHUK0.4530.321-0.154
5UHETO0.4380.309-0.207
6NOTOH0.4080.289-0.304
7NAGAM0.3820.270-0.391
8KOTUN0.3780.267-0.405
9ASARO0.3420.242-0.523
10GAVEV0.3100.219-0.629

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

Mean: 0.313Mean in random network: 0.500
Std.dev: 0.165Std.dev in random network: 0.302

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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): GAMANEG

RankAgentValue
1NAGAD0.347
2GAMA0.338
3GEHAM0.322
4GAHUK0.301
5UHETO0.290
6NOTOH0.271
7NAGAM0.253
8KOTUN0.251
9ASARO0.227
10GAVEV0.206

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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: GAMANEG (size: 16, density: 0.241667)

RankAgentValueUnscaledContext*
1GAHUK0.3750.025-1.790
2GAMA0.3750.025-1.790
3NAGAM0.3660.024-1.929
4ASARO0.3660.024-1.929
5NAGAD0.3660.024-1.929
6GAVEV0.3570.024-2.062
7UHETO0.3490.023-2.188
8KOTUN0.3410.023-2.309
9NOTOH0.3410.023-2.309
10GEHAM0.3410.023-2.309

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

Mean: 0.320Mean in random network: 0.493
Std.dev: 0.075Std.dev in random network: 0.066

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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): GAMANEG

RankAgentValueUnscaled
1GAHUK0.3750.025
2GAMA0.3750.025
3NAGAM0.3660.024
4ASARO0.3660.024
5NAGAD0.3660.024
6GAVEV0.3570.024
7UHETO0.3490.023
8KOTUN0.3410.023
9NOTOH0.3410.023
10GEHAM0.3410.023

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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: GAMANEG (size: 16, density: 0.241667)

RankAgentValueUnscaledContext*
1GAVEV0.19120.0422.110
2GAMA0.16116.9401.531
3SEUVE0.12413.0000.796
4ASARO0.12312.9550.787
5GAHUK0.11712.2400.654
6NAGAD0.0949.9130.219
7KOTUN0.0899.3670.117
8NAGAM0.0666.963-0.332
9GEHAM0.0444.583-0.776
10NOTOH0.0262.777-1.113

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

Mean: 0.067Mean in random network: 0.083
Std.dev: 0.061Std.dev in random network: 0.051

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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): GAMANEG

RankAgentValue
1NAGAD0.524
2GAMA0.510
3GEHAM0.485
4GAHUK0.453
5UHETO0.438
6NOTOH0.408
7NAGAM0.382
8KOTUN0.378
9ASARO0.342
10GAVEV0.310

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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): GAMANEG

RankAgentValue
1NAGAD0.524
2GAMA0.510
3GEHAM0.485
4GAHUK0.453
5UHETO0.438
6NOTOH0.408
7NAGAM0.382
8KOTUN0.378
9ASARO0.342
10GAVEV0.310

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Information centrality

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

Input network(s): GAMANEG

RankAgentValueUnscaled
1GAMA0.0851.752
2NAGAD0.0831.711
3GAHUK0.0801.652
4KOTUN0.0771.593
5GEHAM0.0771.582
6GAVEV0.0761.569
7NAGAM0.0751.548
8ASARO0.0741.531
9UHETO0.0721.493
10NOTOH0.0721.485

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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): GAMANEG

RankAgentValue
1GEHAM4.000
2UHETO3.000
3NAGAD3.000
4GAMA3.000
5GAHUK2.000
6NOTOH2.000
7KOTUN1.000
8KOHIK1.000
9ASARO1.000
10SEUVE1.000

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Simmelian ties

The normalized number of Simmelian ties of each node.

Input network(s): GAMANEG

RankAgentValueUnscaled
1GEHAM0.3335.000
2GAMA0.3335.000
3GAHUK0.2674.000
4NOTOH0.2674.000
5UHETO0.2674.000
6NAGAD0.2674.000
7KOTUN0.1332.000
8KOHIK0.1332.000
9ASARO0.1332.000
10SEUVE0.1332.000

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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): GAMANEG

RankAgentValue
1UHETO0.500
2GEHAM0.400
3NOTOH0.333
4KOHIK0.333
5SEUVE0.333
6GAHUK0.200
7NAGAD0.200
8GAMA0.200
9ASARO0.167
10KOTUN0.100

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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
1GAVEVGAHUKNAGADNAGADNAGADGAHUKNAGADNAGAD
2GAMAGAMAGAMAGAMAGAMAGAMAGAMAGAMA
3SEUVENAGAMGEHAMGEHAMGAVEVNAGAMGAVEVGAVEV
4ASAROASAROGAHUKGAHUKKOTUNASAROKOTUNKOTUN
5GAHUKNAGADUHETOUHETOGAHUKNAGADGAHUKGAHUK
6NAGADGAVEVNOTOHNOTOHGEHAMGAVEVGEHAMGEHAM
7KOTUNUHETONAGAMNAGAMNAGAMUHETONAGAMNAGAM
8NAGAMKOTUNKOTUNKOTUNNOTOHKOTUNNOTOHNOTOH
9GEHAMNOTOHASAROASAROASARONOTOHASAROASARO
10NOTOHGEHAMGAVEVGAVEVUHETOGEHAMUHETOUHETO