sklearn: sklearn.cross_validation deprecated

sklearn.cross_validation is deprecated.

Now we have to use sklearn.model_selection

Oracle VM: folder sharing and mounting

sudo mount -t vboxsf "name of folder in shared folders" "name of folder to be mounted"

sudo mount -t vboxsf mydocuments /media/mydocuments 

word2vec: some explanation

https://en.wikipedia.org/wiki/Word2vec
https://code.google.com/archive/p/word2vec/