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Methods of comparison and similarity scoring for electrical current waveforms

机译：电流波形的比较和相似度评分方法

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摘要

The aim of this study was to identify methods that may be applied in the calculation of similarity between waveforms. Five methods were selected: the Pearson correlation coefficient, the phi coefficient, the Bhattacharyya distance, the Spearman correlation coefficient and the Root Mean Square Deviation. To apply the methods in calculating the similarity between waveforms, a time shift was implemented. To validate the methods of analysis and define the similarity score between waveforms were captured and used waveforms of five electromedical equipment. The conducted tests showed that the Pearson and Spearman correlation coefficients may be applied to assess the similarity between electrical current waveforms. To determine the degree of similarity between waveforms a scale of five-degree of similarity was produced. The classification of similarity between waveforms, based on the scale, can be used to detect cases of microshocks.
机译：这项研究的目的是确定可用于计算波形之间相似度的方法。选择了五种方法：皮尔逊相关系数，phi系数，Bhattacharyya距离，Spearman相关系数和均方根偏差。为了将这些方法应用于计算波形之间的相似度，实现了时移。为了验证分析方法并定义波形之间的相似性得分，捕获并使用了五种电子医疗设备的波形。进行的测试表明，皮尔逊和斯皮尔曼相关系数可用于评估电流波形之间的相似性。为了确定波形之间的相似度，产生了五个相似度的标度。基于标度，波形之间的相似性分类可用于检测微震的情况。

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