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Multimode co-clustering for analyzing terrorist networks

Ahmed Aleroud () and Aryya Gangopadhyay ()
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Ahmed Aleroud: Yarmouk University
Aryya Gangopadhyay: University of Maryland, Baltimore County (UMBC)

Information Systems Frontiers, 2018, vol. 20, issue 5, No 12, 1053-1074

Abstract: Abstract The phenomenon of terrorism is deemed one of the fundamental challenges in national security. Creating defensive technologies to mitigate terrorist attacks requires a simultaneous investigation of contextual relationships among their various dimensions. We proposed and evaluated a graph-based methodology to analyze terrorist networks through co-clustering in a multimode basis. Since there are many heterogeneous relationships in terrorist networks depending on the dimensions used during analysis, we utilized the clustering indicators of the multimode structure discovered in bi- and multimode graphs. Objects and activities that co-occur during terrorist attacks are identified by applying conventional clustering on those indicators. The novelty of our method is in the incremental creation of the multimode structure using its bi-mode counterparts. Our approach is evaluated using these measures: clustering stability and association confidence. The experimental results yields encouraging results in terms of simultaneous clustering of heterogeneous objects in terrorist networks.

Keywords: Multimode clustering; Terrorist networks; Singular value decomposition; k-means; Social network analysis (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10796-016-9712-4

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