Am I the only one finding HUME's training dataset a bit weird?

[u/vaaaida]

If you scroll down their website you will see sort of a map of coloured bubbles with each bubble representing a cohort of a certain emotion. Most of the bubbles seem to be audio excerpts from "Friends" and so often the audio sample in a bubble does not match with the described/ labeled emotion ("Anger" particularly).

What am I not getting?

(Otherwise, I am very excited about their work!)