The dataset https://openml.org/d/42564 is not sparse, but is marked as such.
The file is actually pretty poorly formatted though: it encodes each row's unique values as its own attribute.
It might be better to deactivate and contact the user or to reformat it ourselves.
The dataset https://openml.org/d/42564 is not sparse, but is marked as such. The file is actually pretty poorly formatted though: it encodes each row's unique values as its own attribute. It might be better to deactivate and contact the user or to reformat it ourselves.