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Simulate a new warmstarted run/restart once a number of epochs are performed. More...
Public Member Functions  
SnapshotEnsembles (const size_t epochRestart, const double multFactor, const double stepSize, const size_t maxIterations, const size_t snapshots)  
Construct the CyclicalDecay technique a restart method, where the step size decays after each batch and peridically resets to its initial value. More...  
double  EpochBatches () const 
Get the restart fraction. More...  
double &  EpochBatches () 
Modify the restart fraction. More...  
std::vector< arma::mat >  Snapshots () const 
Get the snapshots. More...  
std::vector< arma::mat > &  Snapshots () 
Modify the snapshots. More...  
double  StepSize () const 
Get the step size. More...  
double &  StepSize () 
Modify the step size. More...  
void  Update (arma::mat &iterate, double &stepSize, const arma::mat &) 
This function is called in each iteration after the policy update. More...  
Detailed Description
Simulate a new warmstarted run/restart once a number of epochs are performed.
Importantly, the restarts are not performed from scratch but emulated by increasing the step size while the old step size value of as an initial parameter.
For more information, please refer to:
Definition at line 40 of file snapshot_ensembles.hpp.
Constructor & Destructor Documentation
◆ SnapshotEnsembles()

inline 
Construct the CyclicalDecay technique a restart method, where the step size decays after each batch and peridically resets to its initial value.
 Parameters

epochRestart Initial epoch where decay is applied. multFactor Factor to increase the number of epochs before a restart. stepSize Initial step size for each restart. batchSize Size of each minibatch. numFunctions The number of separable functions (the number of predictor points). maxIterations Maximum number of iterations allowed (0 means no limit). snapshots Maximum number of snapshots.
Definition at line 58 of file snapshot_ensembles.hpp.
Member Function Documentation
◆ EpochBatches() [1/2]

inline 
Get the restart fraction.
Definition at line 135 of file snapshot_ensembles.hpp.
◆ EpochBatches() [2/2]

inline 
Modify the restart fraction.
Definition at line 137 of file snapshot_ensembles.hpp.
◆ Snapshots() [1/2]

inline 
Get the snapshots.
Definition at line 140 of file snapshot_ensembles.hpp.
Referenced by SnapshotSGDR< UpdatePolicyType >::Snapshots().
◆ Snapshots() [2/2]

inline 
Modify the snapshots.
Definition at line 142 of file snapshot_ensembles.hpp.
◆ StepSize() [1/2]

inline 
Get the step size.
Definition at line 130 of file snapshot_ensembles.hpp.
◆ StepSize() [2/2]

inline 
Modify the step size.
Definition at line 132 of file snapshot_ensembles.hpp.
◆ Update()

inline 
This function is called in each iteration after the policy update.
 Parameters

iterate Parameters that minimize the function. stepSize Step size to be used for the given iteration. gradient The gradient matrix.
Definition at line 93 of file snapshot_ensembles.hpp.
References M_PI.
The documentation for this class was generated from the following file:
 /var/www/www.mlpack.org/mlpackgit/src/mlpack/core/optimizers/sgdr/snapshot_ensembles.hpp
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