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Electric power communication network risk assessment system based on clustering and association rule mining

A risk assessment system and technology of power communication network, applied in the field of risk assessment of power communication network, can solve problems such as low mining efficiency and subjectivity of AHP, reduce expert authority and personal preference, improve mining efficiency, and improve accuracy and the effect of effectiveness

Active Publication Date: 2020-09-08
ANHUI UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At the same time, the invention solves the problems of low mining efficiency of traditional association rules and excessive subjectivity of AHP, and effectively improves the accuracy and effectiveness of risk assessment of electric power communication network

Method used

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  • Electric power communication network risk assessment system based on clustering and association rule mining
  • Electric power communication network risk assessment system based on clustering and association rule mining
  • Electric power communication network risk assessment system based on clustering and association rule mining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0074] Improve the search efficiency and tree structure of CAN-tree: through AP clustering on the database, delete infrequent index sets to reduce the number of nodes in the tree and add a hash-assisted item header table to CAN-Tree to improve search Conditional pattern base rate for an item. Such as image 3 As shown, it is a traditional CAN-tree tree building diagram.

[0075] For a T10I4D100K.dat data set with 100,000 transactions and 870 items, select different minimum support Supmin={5%, 1%, 0.5%} to adopt the traditional CAN-tree, FP-growth and improved CAN-tree algorithms respectively The association rule mining test is carried out, and the test comparison results are shown in Table 1.

[0076] Table 1 T10I4D100K dataset test comparison table

[0077]

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Abstract

The invention discloses an electric power communication network risk assessment system based on clustering and association rule mining, and the method comprises the following steps: collecting historical risk data, building a risk assessment database, and carrying out the preprocessing of the data; performing AP clustering on the database based on the support count of each index, deleting an infrequent index set from the database, obtaining frequent indexes and support counts thereof according to the clustered cluster, and updating the remaining frequent indexes to the database according to adata size sequence; mining an association rule on the updated database, and finding indexes having important influences on an evaluation result; and determining a final index system and the weight ofeach factor by adopting an analytic hierarchy process, and weighting to obtain a final comprehensive risk assessment index. The problems of low mining efficiency of traditional association rules and too strong subjectivity of an analytic hierarchy process are solved, and the accuracy and effectiveness of risk assessment of the power communication network are effectively improved.

Description

technical field [0001] The invention relates to the field of risk assessment of power communication networks, in particular to a risk assessment system for power communication networks based on clustering and association rule mining. Background technique [0002] In the past two decades, with the acceleration of smart grid construction, the power communication network, as an important part of the power system, has become more and more important. Its security directly affects its own stable operation, and directly or indirectly affects the power grid This also puts forward higher management requirements for the overall control and risk prevention of large-scale communication networks. The power communication network is a complex system, which consists of multiple transmission and switching subnets, and each subnet includes multiple communication devices. Any failure or risk of any communication device or subnet will affect the entire power communication network. In order to ...

Claims

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Application Information

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IPC IPC(8): G06F16/901G06F16/906G06Q10/06G06Q50/06G06Q50/30
CPCG06F16/9027G06F16/906G06Q10/0635G06Q10/06393G06Q50/06G06Q50/40Y04S10/50
Inventor 洪炎张磊郑晓亮苏静明
Owner ANHUI UNIV OF SCI & TECH
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