This class describes the options for maximizing various quadratic objective functions. More...

#include <sp-matrix.h>

Collaboration diagram for SolverOptions:

Public Member Functions
	SolverOptions (const std::string &name)

	SolverOptions ()

void	Check () const

Public Attributes
BaseFloat	K

BaseFloat	eps

std::string	name

bool	optimize_delta

bool	diagonal_precondition

bool	print_debug_output

Detailed Description

This class describes the options for maximizing various quadratic objective functions.

It's mostly as described in the SGMM paper "the subspace Gaussian mixture model – a structured model for speech recognition", but the diagonal_precondition option is newly added, to handle problems where different dimensions have very different scaling (we recommend to use the option but it's set false for back compatibility).

Definition at line 443 of file sp-matrix.h.

Constructor & Destructor Documentation

◆ SolverOptions() [1/2]

SolverOptions ( const std::string & name )

inlineexplicit

Definition at line 450 of file sp-matrix.h.

                                                :
       K(1.0e+4), eps(1.0e-40), name(name),
       optimize_delta(true), diagonal_precondition(false),
       print_debug_output(true) { }

◆ SolverOptions() [2/2]

SolverOptions ( )

inline

Definition at line 454 of file sp-matrix.h.

References kaldi::SolveDoubleQuadraticMatrixProblem(), kaldi::SolveQuadraticMatrixProblem(), and kaldi::SolveQuadraticProblem().

                  : K(1.0e+4), eps(1.0e-40), name("[unknown]"),
                    optimize_delta(true), diagonal_precondition(false),
                    print_debug_output(true) { }

Member Function Documentation

◆ Check()

void Check ( ) const

Definition at line 631 of file sp-matrix.cc.

References SolverOptions::eps, SolverOptions::K, and KALDI_ASSERT.

Referenced by kaldi::SolveQuadraticMatrixProblem(), and kaldi::SolveQuadraticProblem().

                                 {
   KALDI_ASSERT(K>10 && eps<1.0e-10);
 }

Member Data Documentation

◆ diagonal_precondition

bool diagonal_precondition

Definition at line 448 of file sp-matrix.h.

Referenced by kaldi::SolveQuadraticMatrixProblem(), kaldi::SolveQuadraticProblem(), kaldi::UnitTestSolve(), IvectorExtractorStats::UpdateProjection(), and IvectorExtractorStats::UpdateWeight().

◆ eps

BaseFloat eps

Definition at line 445 of file sp-matrix.h.

Referenced by SolverOptions::Check(), MleAmSgmm2Updater::MapUpdateM(), kaldi::SolveQuadraticMatrixProblem(), kaldi::SolveQuadraticProblem(), EbwAmSgmm2Updater::UpdateM(), MleAmSgmm2Updater::UpdateM(), EbwAmSgmm2Updater::UpdateN(), MleAmSgmm2Updater::UpdateN(), EbwAmSgmm2Updater::UpdatePhoneVectorsInternal(), MleAmSgmm2Updater::UpdatePhoneVectorsInternal(), EbwAmSgmm2Updater::UpdateU(), MleAmSgmm2Updater::UpdateU(), EbwAmSgmm2Updater::UpdateW(), and MleAmSgmm2Updater::UpdateW().

◆ K

BaseFloat K

Definition at line 444 of file sp-matrix.h.

Referenced by SolverOptions::Check(), MleAmSgmm2Updater::MapUpdateM(), kaldi::SolveQuadraticMatrixProblem(), kaldi::SolveQuadraticProblem(), EbwAmSgmm2Updater::UpdateM(), MleAmSgmm2Updater::UpdateM(), EbwAmSgmm2Updater::UpdateN(), MleAmSgmm2Updater::UpdateN(), EbwAmSgmm2Updater::UpdatePhoneVectorsInternal(), MleAmSgmm2Updater::UpdatePhoneVectorsInternal(), EbwAmSgmm2Updater::UpdateU(), MleAmSgmm2Updater::UpdateU(), EbwAmSgmm2Updater::UpdateW(), and MleAmSgmm2Updater::UpdateW().

◆ name

std::string name

Definition at line 446 of file sp-matrix.h.

◆ optimize_delta

bool optimize_delta

Definition at line 447 of file sp-matrix.h.

Referenced by kaldi::SolveQuadraticMatrixProblem(), kaldi::SolveQuadraticProblem(), and kaldi::UnitTestSolve().

◆ print_debug_output

bool print_debug_output

Definition at line 449 of file sp-matrix.h.