LossMetric<T extends TNumber> Interface for Metrics that wrap Loss functions. 


MeanMetricWrapper<T extends TNumber> A class that bridges a stateless loss function with the Mean metric using a reduction of WEIGHTED_MEAN
MetricsHelper These are helper methods for Metrics and will be module private when Java modularity is applied to TensorFlow Java. 
Reduce<T extends TNumber> Encapsulates metrics that perform a reduce operation on the metric values. 
SetsOps Implementation of set operations  


SetsOps.Operation Enumeration containing the string operation values to be passed to the TensorFlow Sparse Ops function ERROR(/SparseOps#denseToDenseSetOperation)