edu.stanford.rsl.jpop

Interface FunctionAssembler

All Known Implementing Classes:

AdditiveFunctionAssembler

public interface FunctionAssembler

This interface provides methods to assemble the information after the block-wise processing of the evaluate, gradient, and hessian.

Method Summary

Modifier and Type	Method and Description
double	assembleEvaluationBlocks(double[] blockResults) This method is provided with an array of block results and assembles them into a single function evaluation result.
double[]	assembleGradientBlocks(double[][] blockResults) This method is provided with an array of gradients which were obtained by the different processing blocks.
double[][]	assembleHessianBlocks(double[][][] blockResults) This method is provided with an array of hessians as computed fron the parallel procesing blocks.

Method Detail

assembleEvaluationBlocks

double assembleEvaluationBlocks(double[] blockResults)

This method is provided with an array of block results and assembles them into a single function evaluation result.

Parameters:

blockResults - the results of the processing blocks.

Returns:

the evaluation result

assembleGradientBlocks

double[] assembleGradientBlocks(double[][] blockResults)

This method is provided with an array of gradients which were obtained by the different processing blocks. The methods assembles the data into a single gradient vector. The first index of the gradient array is supposed to refer to the block number.

Parameters:

blockResults - the block results

Returns:

the assembled gradient vector

assembleHessianBlocks

double[][] assembleHessianBlocks(double[][][] blockResults)

This method is provided with an array of hessians as computed fron the parallel procesing blocks. The first index of the array should refer to the block index.

Parameters:

blockResults - the block results.

Returns:

the assembled Hessian.