Taxpayer tax evasion suspicion group detection method based on multi-stage MapReduce model
A detection method and taxpayer's technology, applied in the fields of instrumentation, finance, data processing, etc., can solve the problems of lack of consideration, high graph processing time and space complexity, and difficulty in finding non-motif structure tax evasion enterprise groups, etc.
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[0096] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0097] In order to understand the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings. The method of the present invention involves the discovery process of a group of taxpayers suspected of tax evasion, such as figure 1 Shown.
[0098] (1) Related definitions of several concepts used in the present invention
[0099] Definition 1: Strong connection component
[0100] In the directed graph G, if two vertices v i ,v j Between v i To v j Has a directed path from v j To v i The two vertices are called strongly connected. If every two vertices of the directed graph G are strongly connected, G is said to be a strongly connected graph. The maximally strongly connected subgraphs of a directed graph are called strongly connected components.
[0101] Definition 2: Maximum wea...
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