def _subsampled_power_iteration(X, v, subsampling_scheme, random_state):
X_ = subsample(subsampling_scheme, X, random_state=random_state)
v, s = _power_iteration(X_, v)
return (
v,
s / subsampling_fraction(
len(X), subsampling_scheme, random_state=random_state),
)
def subsample(self, *args):
"""Subsample the input using this class's subsampling scheme.
"""
return subsample(self.subsampling_scheme,
random_state=self.random_state_,
*args)
def subsample(self, *args):
return subsample(self.subsampling_scheme,
random_state=self.random_state_,
*args)