Article ; Online: Event Networks and the Identification of Crime Pattern Motifs.
PloS one
2015 Volume 10, Issue 11, Page(s) e0143638
Abstract: ... than previously possible. In particular, we focus on the identification of network motifs, which have clear ... of the patterns present. Here, we show how the classification of pairs of events as close in space and time can be ... in spatio-temporal events. Such clustering is of both theoretical and practical importance in the study ...
| Abstract | In this paper we demonstrate the use of network analysis to characterise patterns of clustering in spatio-temporal events. Such clustering is of both theoretical and practical importance in the study of crime, and forms the basis for a number of preventative strategies. However, existing analytical methods show only that clustering is present in data, while offering little insight into the nature of the patterns present. Here, we show how the classification of pairs of events as close in space and time can be used to define a network, thereby generalising previous approaches. The application of graph-theoretic techniques to these networks can then offer significantly deeper insight into the structure of the data than previously possible. In particular, we focus on the identification of network motifs, which have clear interpretation in terms of spatio-temporal behaviour. Statistical analysis is complicated by the nature of the underlying data, and we provide a method by which appropriate randomised graphs can be generated. Two datasets are used as case studies: maritime piracy at the global scale, and residential burglary in an urban area. In both cases, the same significant 3-vertex motif is found; this result suggests that incidents tend to occur not just in pairs, but in fact in larger groups within a restricted spatio-temporal domain. In the 4-vertex case, different motifs are found to be significant in each case, suggesting that this technique is capable of discriminating between clustering patterns at a finer granularity than previously possible. |
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| MeSH term(s) | Crime ; Humans ; Models, Theoretical |
| Language | English |
| Publishing date | 2015 |
| Publishing country | United States |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't |
| ISSN | 1932-6203 |
| ISSN (online) | 1932-6203 |
| DOI | 10.1371/journal.pone.0143638 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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