Standard Network Analysis: resource---resource

Standard Network Analysis: resource---resource

Input data: resource---resource

Start time: Tue Oct 18 12:09:59 2011

Return to table of contents

Network Level Measures

MeasureValue
Row count59.000
Column count59.000
Link count35.000
Density0.010
Components of 1 node (isolates)27
Components of 2 nodes (dyadic isolates)3
Components of 3 or more nodes2
Reciprocity0.030
Characteristic path length2.505
Clustering coefficient0.043
Network levels (diameter)5.000
Network fragmentation0.849
Krackhardt connectedness0.151
Krackhardt efficiency0.970
Krackhardt hierarchy0.990
Krackhardt upperboundedness0.414
Degree centralization0.043
Betweenness centralization0.015
Closeness centralization0.003
Eigenvector centralization0.725
Reciprocal (symmetric)?No (3% of the links are reciprocal)

Node Level Measures

MeasureMinMaxAvgStddev
Total degree centrality0.0000.0470.0060.009
Total degree centrality [Unscaled]0.00011.0001.3052.011
In-degree centrality0.0000.0590.0060.011
In-degree centrality [Unscaled]0.0007.0000.6611.297
Out-degree centrality0.0000.0420.0060.009
Out-degree centrality [Unscaled]0.0005.0000.6611.067
Eigenvector centrality0.0000.7750.0750.168
Eigenvector centrality [Unscaled]0.0000.5480.0530.119
Eigenvector centrality per component0.0000.2140.0250.046
Closeness centrality0.0080.0100.0090.000
Closeness centrality [Unscaled]0.0000.0000.0000.000
In-Closeness centrality0.0080.0120.0090.001
In-Closeness centrality [Unscaled]0.0000.0000.0000.000
Betweenness centrality0.0000.0150.0010.002
Betweenness centrality [Unscaled]0.00051.0002.2467.679
Hub centrality0.0000.9660.0620.173
Authority centrality0.0001.0130.0530.176
Information centrality0.0000.0810.0170.023
Information centrality [Unscaled]0.0002.0960.4390.606
Clique membership count0.0003.0000.2200.584
Simmelian ties0.0000.0000.0000.000
Simmelian ties [Unscaled]0.0000.0000.0000.000
Clustering coefficient0.0000.7500.0430.124

Key Nodes

This chart shows the Resource that is repeatedly top-ranked in the measures listed below. The value shown is the percentage of measures for which the Resource 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: resource---resource (size: 59, density: 0.0100546)

RankResourceValueUnscaledContext*
1missil0.04711.0002.845
2canist0.0348.0001.858
3warhead0.0215.0000.871
4airfram0.0174.0000.542
5mortar0.0174.0000.542
6helicopt0.0174.0000.542
7engin0.0133.0000.213
8missile-storag0.0133.0000.213
9arm0.0133.0000.213
10support0.0133.0000.213

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

Mean: 0.006Mean in random network: 0.010
Std.dev: 0.009Std.dev in random network: 0.013

Back to top

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): resource---resource

RankResourceValueUnscaled
1missil0.0597.000
2canist0.0344.000
3airfram0.0253.000
4engin0.0253.000
5mortar0.0253.000
6antiaircraft0.0253.000
7helicopt0.0172.000
8arm0.0172.000
9warhead0.0172.000
10rocket0.0172.000

Back to top

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): resource---resource

RankResourceValueUnscaled
1canist0.0425.000
2missil0.0344.000
3missile-storag0.0253.000
4warhead0.0253.000
5ah-64_apache0.0172.000
6antitank0.0172.000
7al-samoud0.0172.000
8helicopt0.0172.000
9support0.0172.000
10polic0.0081.000

Back to top

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: resource---resource (size: 59, density: 0.0100546)

RankResourceValueUnscaledContext*
1missil0.7750.5482.622
2canist0.7580.5362.559
3warhead0.4480.3171.399
4airfram0.3990.2821.215
5missile-storag0.3800.2691.147
6engin0.3420.2421.004
7al-samoud0.2160.1530.535
8mortar0.2030.1430.483
9antitank0.1890.1340.434
10helicopt0.1850.1310.417

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

Mean: 0.075Mean in random network: 0.073
Std.dev: 0.168Std.dev in random network: 0.268

Back to top

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): resource---resource

RankResourceValue
1missil0.214
2canist0.209
3warhead0.123
4airfram0.110
5missile-storag0.105
6engin0.094
7al-samoud0.060
8mortar0.056
9antitank0.052
10helicopt0.051

Back to top

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: resource---resource (size: 59, density: 0.0100546)

RankResourceValueUnscaledContext*
1financ0.0100.000-1.872
2missile-storag0.0100.000-1.864
3support0.0100.000-1.864
4hawala0.0100.000-1.864
5ah-64_apache0.0100.000-1.863
6warhead0.0100.000-1.857
7helicopt0.0100.000-1.857
8canist0.0100.000-1.857
9monei0.0100.000-1.856
10antitank0.0090.000-1.849

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

Mean: 0.009Mean in random network: -0.036
Std.dev: 0.000Std.dev in random network: -0.025

Back to top

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): resource---resource

RankResourceValueUnscaled
1antiaircraft0.0120.000
2mortar0.0110.000
3cargo0.0110.000
4airfram0.0110.000
5engin0.0110.000
6missil0.0110.000
7arm0.0090.000
8warhead0.0090.000
9rocket0.0090.000
10soldier0.0090.000

Back to top

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: resource---resource (size: 59, density: 0.0100546)

RankResourceValueUnscaledContext*
1missil0.01551.000-0.503
2arm0.00724.000-0.583
3mortar0.00414.000-0.613
4airfram0.00413.000-0.616
5warhead0.0038.500-0.630
6support0.0028.000-0.631
7helicopt0.0027.000-0.634
8monei0.0027.000-0.634

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

Mean: 0.001Mean in random network: 0.066
Std.dev: 0.002Std.dev in random network: 0.101

Back to top

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): resource---resource

RankResourceValue
1canist0.966
2warhead0.590
3missile-storag0.464
4al-samoud0.347
5missil0.337
6antitank0.324
7helicopt0.294
8arm0.273
9weapon0.052
10ah-64_apache0.000

Back to top

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): resource---resource

RankResourceValue
1missil1.013
2canist0.669
3airfram0.510
4warhead0.385
5engin0.275
6mortar0.192
7gunship0.079
8helicopt0.000
9antiaircraft0.000
10arm0.000

Back to top

Information centrality

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

Input network(s): resource---resource

RankResourceValueUnscaled
1canist0.0812.096
2missil0.0812.095
3missile-storag0.0651.680
4warhead0.0631.638
5support0.0531.362
6helicopt0.0521.335
7ah-64_apache0.0511.325
8antitank0.0511.325
9al-samoud0.0511.311
10arm0.0360.941

Back to top

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): resource---resource

RankResourceValue
1missil3.000
2warhead2.000
3canist2.000
4airfram1.000
5engin1.000
6missile-storag1.000
7antitank1.000
8al-samoud1.000
9mortar1.000

Back to top

Simmelian ties

The normalized number of Simmelian ties of each node.

Input network(s): resource---resource

RankResourceValueUnscaled
1All nodes have this value0.000

Back to top

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): resource---resource

RankResourceValue
1missile-storag0.750
2airfram0.313
3warhead0.313
4engin0.250
5antitank0.250
6al-samoud0.250
7canist0.250
8missil0.086
9mortar0.063

Back to top

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
1missilfinancmissilmissilmissilantiaircraftcanistmissil
2armmissile-storagcanistcanistcanistmortarmissilcanist
3mortarsupportwarheadwarheadairframcargomissile-storagwarhead
4airframhawalaairframairframenginairframwarheadairfram
5warheadah-64_apachemissile-storagmissile-storagmortarenginah-64_apachemortar
6supportwarheadenginenginantiaircraftmissilantitankhelicopt
7helicopthelicoptal-samoudal-samoudhelicoptarmal-samoudengin
8moneicanistmortarmortararmwarheadhelicoptmissile-storag
9financimoneiantitankantitankwarheadrocketsupportarm
10hospitantitankhelicopthelicoptrocketsoldierpolicsupport