Figure 7From: Quality estimation of the electrocardiogram using cross-correlation among leads AC ECG records wrongly classified by the classifiers (a–c). This corresponds to ECG signals labelled as AC that have been classified as UN by the algorithms. For each panel, it is indicated the record-id, the name of the algorithm, and the rule responsible for the misclassification. x-axes units are in seconds and y-axes are mV.Back to article page