Fit clones of an estimator on each block / partition, and ensemble the results somehow http://scikit-learn.org/stable/modules/generated/sklearn.ensemble.VotingClassifier.html, http://scikit-learn.org/stable/modules/generated/sklearn.ensemble.BaggingClassifier.html#sklearn.ensemble.BaggingClassifier, http://scikit-learn.org/stable/modules/generated/sklearn.ensemble.BaggingRegressor.html#sklearn.ensemble.BaggingRegressor