Stair closeness centrality determination method and system

A determination method and a ladder technology, which are applied in the field of determination methods and systems of ladder proximity centrality, and can solve problems such as centrality index interference.

Active Publication Date: 2018-05-18
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method and system for determining the centrality of the ladder approach, thereby solving the problem that ...

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  • Stair closeness centrality determination method and system
  • Stair closeness centrality determination method and system
  • Stair closeness centrality determination method and system

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[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0068] A method for determining the centrality of ladder proximity provided by the present invention mainly includes: 1) establishing a data graph with the data units of the database as nodes, the associations between data units as edges, and the strength of associations between data units as weights; 2) Initialize the remaining node set as all nodes in the current data graph, and select an appr...

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Abstract

The invention discloses a stair closeness centrality determination method and system. The method comprises the following steps of: constructing a data map of a target database; forming a residual nodeset by all the nodes in the data map; calculating distances between all the node pairs in the residual node set, and calculating closeness centralities of all the nodes through the distances and weight functions; selecting a node with the maximum closeness centrality from the residual node set, deleting the selected node from the residual node set, and deleting edges associated with the selectednode from the data map so as to generate a new sub-map, wherein a stair closeness centrality of the selected node is closeness centrality calculated in the current sub-map; and judging whether the residual node set after the deletion is empty or not, and if the judging result is negative, repeating above steps to continue the calculation until the residual node set is empty, wherein stair closeness centralities of all the nodes are calculated. According to the method and system, stair closeness centrality indexes have better locality and anti-jamming capability.

Description

technical field [0001] The invention belongs to the field of graph data analysis in the computer field, and more specifically relates to a method and system for determining the centrality of ladder proximity for large-scale data graph analysis. Background technique [0002] At present, a large number of graph data and graph structures appear in our lives, such as social networks, transportation network graphs, biological networks, financial networks, scientific research data network graphs, and so on. With the continuous development of society, the scale of these data graphs is rapidly expanding, and the scale of data is increasing day by day. Therefore, it is very difficult to directly analyze the entire graph structure. Recently, researchers have proposed many methods for detecting and evaluating community and centrality measures in large-scale graphs. By detecting the key elements in the graph and sorting the nodes in the graph according to their importance, it is benefi...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 金海钱辰于东晓谢夏王娜
Owner HUAZHONG UNIV OF SCI & TECH
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