Methods

Data preparation, preprocessing and the signal quality gate.

1 min read

Preprocessing

Five boxes in a row: raw 12-lead, band-pass filter, resample, quality gate, model.
Figure 2. Preprocessing pipeline.

Each lead is band-pass filtered between 0.5 and 40 Hz, then resampled to 500 Hz. The filter is a zero-phase Butterworth of order n=4n = 4.

The model card is attached as model-card.json.

Reused figures

Images can come from any page. This one is the parent page’s confusion matrix, referenced relatively:

Confusion matrix reused from the parent page.

And this one is referenced from the site root:

ROC curves reused from the parent page.

Raw HTML works too: metrics CSV via HTML link.

In this section

  • 01

    Signal quality gate

    Recordings with a signal quality index below 0.6 are excluded.