Class SubsampleToMinFederatedScheme

  • public class SubsampleToMinFederatedScheme
    extends DataPartitionFederatedScheme
    Subsample to Min Federated scheme When the parameter server runs in federated mode it cannot pull in the data which is already on the workers. Therefore, a UDF is sent to manipulate the data locally. In this case the global minimum number of examples is taken and the worker subsamples data to match that number of examples. The subsampling is done by multiplying with a Permutation Matrix with a global seed. Then all entries in the federation map of the input matrix are separated into MatrixObjects and returned as a list. Only supports row federated matrices atm.