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Incremental graph matching for Situation Awareness

In this paper, an incremental subgraph matching problem is introduced as an enhancement to a batched inexact subgraph isomorphism for situation assessment in higher levels of data fusion. The procedure is shown to be a bounded incremental algorithm, meaning that its runtime is a function of the size of the change in the data graph. Solution quality results are shown to be equal to that of TruST [5] with large improvements in runtime for graphs even in the size range of thousands of nodes. This new enhancement allows subgraph isomorphism procedures to be applied to new types of fusion problems.