关键词: 小波聚类, 网格量化问题, 校正算法, 转子, 故障诊断

Abstract: Aiming at the Modifiable Areal Unit Problem(MAUP) produced by grid clustering algorithm inevitably,an improved wavecluster algorithm based on double grid correction algorithm was presented.In this algorithm,the original grid clustering was performed when k value was obtained in the maximum number of dense grid;the corrected grid clustering was performed when k value was obtained in uniform distribution,thus the best clustering results were obtained with correction algorithm.An example of the rotor fault diagnosis based on double grid corrected wavecluster algorithm showed that the accuracy of double grid wave cluster algorithm was improved,which reduced the effect of grid partition and grid density on the clustering quality.The parallel processing of double grid clustering which could ease the conflict between even grid division and uneven distribution of data object provided a solution for MAUP.

Key words: wavecluster, modifiable areal unit problem, corrected algorithm, rotor, fault diagnosis