Title :
A Probabilistic computational model for identifying organizational structures from uncertain message data
Author :
Yu, Feili ; Levchuck, Georgiy ; Pattipati, Krishna ; Tu, Fang
Abstract :
The knowledge of the principles and goals under which an adversary organization operates is required to predict its future activities. To implement successful counter-actions, additional knowledge of the specifics of the organizational structures, such as command, communication, control, and information access networks, as well as responsibility distribution among members of the organization, is required. In this paper, we employ a hidden Markov random field (HMRF) model and a graph matching algorithm to discover the attributes of and relationships among organizational members, assets, environment areas, and mission tasks. We focus on identifying the mapping between hypothesized nodes of enemy command organization and tracked individuals and resources. This also allows us to compute the posterior energy function quantifying the belief that the observed data has been generated by a particular organization. The experiment results show that our probabilistic model and the simulated annealing search algorithm can accurately identify the different organizational structures and achieve correct node mappings among organizational members.
Keywords :
graph theory; hidden Markov models; simulated annealing; graph matching algorithm; hidden Markov random field; information access networks; organizational structures; posterior energy function; probabilistic computational model; responsibility distribution; simulated annealing search algorithm; uncertain message data; Communication system control; Computational modeling; Eigenvalues and eigenfunctions; Government; Hidden Markov models; Matrix decomposition; Predictive models; Radio frequency; Radiofrequency identification; Simulated annealing;
Conference_Titel :
Information Fusion, 2007 10th International Conference on
Conference_Location :
Quebec, Que.
Print_ISBN :
978-0-662-45804-3
Electronic_ISBN :
978-0-662-45804-3
DOI :
10.1109/ICIF.2007.4407970