Data quality evaluation method and device

The invention provides a data quality evaluation method and device, and relates to the technical field of data processing, and the method comprises the steps: obtaining an initial electroencephalogramsignal which is an electroencephalogram signal generated by a target object according to to-be-evaluated data; preprocessing the initial electroencephalogram signal to obtain a target electroencephalogram signal; calculating wavelet packet coefficient characteristics of the target electroencephalogram signals; and inputting the wavelet packet coefficient characteristics into the support vector machine to obtain the quality classification grade of the to-be-evaluated data, thereby solving the technical problem of relatively low accuracy of the obtained evaluation result when the subjective quality score evaluation method is used for evaluating the data quality in the prior art. 本发明提供了一种数据质量的评价方法和装置，涉及数据处理的技术领域，包括：获取初始脑电信号，其中，初始脑电信号为目标对象根据待评价数据生成的脑电信号；对初始脑电信号进行预处理，得到目标脑电信号；计算出目标脑电信号的小波包系数特征；将小波包系数特征输入支持向量机，得到待评价数据的