【Key words】 content-based musical retrieval； musical signals； pitch extract； melody features； similarity evaluate；
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AIM: To evaluate and choose the indexes of QRS complex similarity for classifying mobile electrocardiogram (ECG) signal expeditiously and precisely.
目的：对移动心电信号QRS波形相似度指标进行评价和筛选，以便快速、准确地对心电图信号进行分类。
The model can be employed to evaluate the matching performance of different similarity measures, direct us to select or improve the existing similarity measures and develop new similarity measure.
该模型可以用于评价相似度指标的匹配性能，指导我们选择或改进已有的相似度指标，以及创建新的相似度指标。
After that take even gray difference to evaluate the similarity of target sub-zones and adjustable templates.
并采用帧间差值的统计指标，来衡量模板与目标子图的相似性。
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