Replaced all BSD style licenses with "BSD 3 clause"
Not checked yet!
Removed duplicate "3 clause, 3 clause"
Removed trailing period if exists
Fixed some missed licences, still about 50 to do, but those can be automated
Think I got the last of them.
Apparently me and sed have different ideas of regex.
Found a few more
CCA is an algorithm that performs a dimensionality reduction
based on two "views" of the same dataset. The two views can
be both unsupervised if we want. It just happens here that
we use X and Y as the views.
Gael Varoquaux