Independent component analysis
A new concept?* – Pierre Comon, 1992
Starting at the source. Rare for me.
‘sources separation problem’
Yup. this is the thing.
How do you split sources once joined?
For music, onset time in groups seems to be key.
I think something similar may apply here .
Also : how do you know what to group?
Ok, so it _does_ take multiple passes (or did in 1994). Hoping to find shortcuts but it’s a bit of relief that yes, it is not a simple problem to solve.
Related: “Projection Pursuit” and “Targeted Projection Pursuit”
https://ieeexplore.ieee.org/document/6875048 binary ica? ooh, 2014.