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ipis-mjkim / caueeg-dataset

CAUEEG: Chung-Ang University Hospital EEG dataset for automatic EEG diagnosis research
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dataset issue #2

Open Bestlzz opened 6 months ago

Bestlzz commented 6 months ago

Hello, I have a problem, that is, the total data sampling point in each subject data does not correspond to the pause event point in the event directory. Some data sets are longer than the event pause point, and some are shorter than the event pause point.

bomatter commented 1 month ago

I have noticed the same issue. A lot of the event json files (199 files) contain events at time points outside the data range in the corresponding edf files. And it's not just Pause events but other annotations as well.

ipis-mjkim commented 3 weeks ago

Sorry for the late reply.

The timing of each event in the event file matches the sampling points in each signal. If you check the values recorded later than the 145,000th in the '00001' subject, you will see that all the values are written with a 0, which can be seen as a dummy inserted by the recording device. Also, the event at the times outside the data range can be ignored.

These inconsistencies came from the neuroscientists who are not familiar with the data science, and we decide to leave them as they are.

Best regards,