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hamburg_cell — Hamburg cell network (2001)

Description

Time series of networks of relationships among 34 individuals, from the John Jay & ARTIS Transnational Terrorism Database (JJATT). The JJATT data treat specific attacks as endpoints, and depict the evolution of the relations among the individuals directly or indirectly associated with them; here, the Hamburg cell of Al-Qaeda, which included several of the perpetrators of the 11 September 2001 attacks in the United States (Wikipedia). The data were coded from open sources (e.g. court documents, news reports and books), and were made available in matrix form by the UCINET datasets collection (University of Manchester).

Nodes are individuals (labelled by their JJATT identifier in name), and each time-period network contains the relationships present in that period (networks named YYYY_1 and YYYY_2 refer to the first and second halves of year YYYY). The edge property weight gives the strength of the tie: 1 = acquaintances or distant family ties (interaction limited to radical organisation activities), 2 = friends or moderately close family ties (including co-workers and roommates), operational or organisational leadership, or operational ties (e.g. having worked closely together on a bombing), 3 = close friends or family, tight-knit operational cliques. A few ties in the 1997-2006 networks have the value 4, which is not described in the source documentation. The source matrices are meant to be symmetric; in the few cases where the two directions differ, the tie with the larger value is used. The JJATT tie-start, tie-end and operation matrices, which use undocumented codes, are not included.1

  1. Description obtained in part from the UCINET datasets page. ↩

Tags
Social Offline Weighted Temporal
Citation
  • S. Atran, M. Sageman, et al., "John Jay & ARTIS Transnational Terrorism Database (JJATT)." John Jay College of Criminal Justice (2009) doitapps.jjay.cuny.edu
Upstream URL OK
https://sites.google.com/site/ucinetsoftware/datasets/covert-networks/hamburg-cell-911-2001
Networks
Tip: click on a column header to sort the list, or hover over it for a description.
Column legend
$\left<k\right>$
Mean degree
$\sigma_k$
Standard deviation of the degrees
$\lambda_h$
Largest eigenvalue of the Hashimoto (non-backtracking) matrix
$\tau$
Random walk mixing time
$r$
Degree assortativity
$c$
Global clustering coefficient
$\oslash$
(Pseudo-) diameter
$S$
Relative size of the largest component
NPs
Node properties
EPs
Edge properties
Name Nodes Edges $\left<k\right>$ $\sigma_k$ $\lambda_h$ $\tau$ $r$ $c$ $\oslash$ $S$ Kind Mode NPs EPs gt GraphML GML csv
1985_1989 34 7 0.41 0.97 2.00 inf 1.00 1.00 1 0.12 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
1990_1994 34 14 0.82 1.22 2.00 2.89 0.18 0.65 4 0.18 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
1995 34 24 1.41 1.77 2.74 13.81 0.09 0.48 4 0.38 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
1996 34 42 2.47 2.79 5.40 16.34 0.37 0.70 6 0.59 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
1997 34 66 3.88 3.71 5.85 5.06 -0.27 0.43 4 0.82 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
1998 34 89 5.24 4.80 8.44 2.86 -0.10 0.57 4 0.82 Undirected Unipartite name weight 1 KiB 2 KiB 1 KiB 1 KiB
1999 34 79 4.65 4.92 8.48 2.12 -0.20 0.61 4 0.76 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2000_1 34 65 3.82 4.19 7.36 2.97 -0.04 0.60 4 0.68 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2000_2 34 57 3.35 3.74 6.38 3.00 -0.08 0.52 4 0.65 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2001_1 34 57 3.35 3.74 6.29 2.99 -0.13 0.51 4 0.65 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2001_2 34 54 3.18 3.60 6.11 3.02 -0.09 0.51 4 0.62 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2002_1 34 11 0.65 0.97 1.00 1.82 -0.63 0.50 3 0.15 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2002_2 34 11 0.65 0.97 1.00 1.82 -0.63 0.50 3 0.15 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2003_1 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2003_2 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2004_1 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2004_2 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2005_1 34 4 0.24 0.49 1.00 nan -0.33 0.00 2 0.09 Undirected Bipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2005_2 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2006_1 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB
2006_2 34 5 0.29 0.62 1.00 nan 1.00 1.00 1 0.09 Undirected Unipartite name weight 1 KiB 1 KiB 1 KiB 1 KiB