Commonly when working with large social networks, data collection is limited by resources, time, and accessibility to the network leading connections to be missed. As demonstrated in the article, Inferring missing links in partially observed social networks authored by CJ Rhodes and P Jones, it is possible to infer social network topology following a limited observation of a large network, despite data collection constraints. Inferences can be made to determine where previously unconnected individuals are likely to fit, thereby attempting to predict network growth as new people are considered for inclusion. The structure of a covert network or one that is actively trying to remain undetected can be even more difficult to ascertain. However, as with the case of the 17 November Revolutionary Organization (N17), a militant Marxist urban guerrilla organization in Greece, it can be very useful to understand the likelihood that individuals are connected despite limited or no evidence of a link. The missing-links in the N17 network were reconstructed using a statistical procedure based on Bayes' Theorem, using data derived from open-source reporting between 1975 to 2002, a time period in which the group was responsible for several violent acts such as assassinations, kidnappings, and symbolic attacks on government offices. The Bayesian approach used in this study determined the probability of an interaction between individuals based on a sample of their known relationships to other N17 associates when examined against their known relationships, role within the group, membership to factions, access to resources necessary to conduct group operations, and centrality (or importance) to the N17 network. The results of the statistical analysis captures a predictive estimate of the possibility of connections between individuals that were not initially detected during the initial network sampling. To increase confidence in the inference method, the study repeated the analysis on several other independent network samples drawn from the N17 data, ultimately exhibiting that there is a 50% probability that these predicted links are correct.
Commonly when working with large social networks, data collection is limited by resources, time, and accessibility to the network leading connections to be missed. As demonstrated in the article, Inferring missing links in partially observed social networks authored by CJ Rhodes and P Jones, it is possible to infer social network topology following a limited observation of a large network, despite data collection constraints. Inferences can be made to determine where previously unconnected individuals are likely to fit, thereby attempting to predict network growth as new people are considered for inclusion. The structure of a covert network or one that is actively trying to remain undetected can be even more difficult to ascertain. However, as with the case of the 17 November Revolutionary Organization (N17), a militant Marxist urban guerrilla organization in Greece, it can be very useful to understand the likelihood that individuals are connected despite limited or no evidence of a link. The missing-links in the N17 network were reconstructed using a statistical procedure based on Bayes' Theorem, using data derived from open-source reporting between 1975 to 2002, a time period in which the group was responsible for several violent acts such as assassinations, kidnappings, and symbolic attacks on government offices. The Bayesian approach used in this study determined the probability of an interaction between individuals based on a sample of their known relationships to other N17 associates when examined against their known relationships, role within the group, membership to factions, access to resources necessary to conduct group operations, and centrality (or importance) to the N17 network. The results of the statistical analysis captures a predictive estimate of the possibility of connections between individuals that were not initially detected during the initial network sampling. To increase confidence in the inference method, the study repeated the analysis on several other independent network samples drawn from the N17 data, ultimately exhibiting that there is a 50% probability that these predicted links are correct.
This network depicts a the ties between individuals associated with Jemaah Islamiyah and involed in one of the following events: Christmas Eve bombings in 2000, Philippines Ambassador Residence bombing in 2000, Bali bombings in 2002, Australian Embassy bombing in 2005, and Bali bombing in 2005. Jemaah Islamiyah (JI) is a militant extremist Islamist group that aims to establish an Islamic state in Southeast Asia that has ties to Al-Qaeda. JI has roots in Darul Islam, a radical Islamist/anti-colonialist movement in Indonesia in the 1940s. The authors of this dataset, JJATT, gathered this data from using 'open source' information. The present dataset reflects a combination of familial, friendship, and association relationships. Furthermore, as a dynamic dataset these relationships are depicted as dynamic and subject to changes.
This network depicts a the ties between individuals associated with Jemaah Islamiyah and involed in one of the following events: Christmas Eve bombings in 2000, Philippines Ambassador Residence bombing in 2000, Bali bombings in 2002, Australian Embassy bombing in 2005, and Bali bombing in 2005. Jemaah Islamiyah (JI) is a militant extremist Islamist group that aims to establish an Islamic state in Southeast Asia that has ties to Al-Qaeda. JI has roots in Darul Islam, a radical Islamist/anti-colonialist movement in Indonesia in the 1940s. The authors of this dataset, JJATT, gathered this data from using 'open source' information. The present dataset reflects a combination of familial, friendship, and association relationships. Furthermore, as a dynamic dataset these relationships are depicted as dynamic and subject to changes.
This network depicts a the ties between individuals associated with Jemaah Islamiyah and involed in one of the following events: Christmas Eve bombings in 2000, Philippines Ambassador Residence bombing in 2000, Bali bombings in 2002, Australian Embassy bombing in 2005, and Bali bombing in 2005. Jemaah Islamiyah (JI) is a militant extremist Islamist group that aims to establish an Islamic state in Southeast Asia that has ties to Al-Qaeda. JI has roots in Darul Islam, a radical Islamist/anti-colonialist movement in Indonesia in the 1940s. The authors of this dataset, JJATT, gathered this data from using 'open source' information. The present dataset reflects a combination of familial, friendship, and association relationships. Furthermore, as a dynamic dataset these relationships are depicted as dynamic and subject to changes.