Emotion Recognition with Multi-task Learning
I suppose your question is .... &quot;How to do multi-task learning?&quot;

Should you take a neural network approach, for instance:
A simple example with the above diagram is to pass Columns 1-8 into the &quot;Shared Layers&quot;.
The task specific layers would each be related to your three targets
ie. Task 1 - Arousal,
Task 2 - Dominance &amp;,
Task 3 - Valance.
Do have a look at this review article on multi-task learning and its various types. A more accessible article with some code examples here.