Global adaptation parameters. More...

#include <fmllr-sgmm2.h>

Collaboration diagram for Sgmm2FmllrGlobalParams:

[legend]

Public Member Functions
void	Init (const AmSgmm2 &sgmm, const Vector< BaseFloat > &state_occs)

void	Write (std::ostream &out_stream, bool binary) const

void	Read (std::istream &in_stream, bool binary)

bool	IsEmpty () const

bool	HasBasis () const

Public Attributes
Matrix< BaseFloat >	pre_xform_
	Pre-transform matrix. Dim is [D][D+1]. More...

Matrix< BaseFloat >	inv_xform_
	Inverse of pre-transform. Dim is [D][D+1]. More...

Vector< BaseFloat >	mean_scatter_
	Diagonal of mean-scatter matrix. Dim is [D]. More...

std::vector< Matrix< BaseFloat > >	fmllr_bases_
	{W}_b. [b][d][d], dim is [B][D][D+1]. More...

Detailed Description

Global adaptation parameters.

Definition at line 91 of file fmllr-sgmm2.h.

Member Function Documentation

◆ HasBasis()

bool HasBasis ( ) const

inline

Definition at line 100 of file fmllr-sgmm2.h.

Referenced by FmllrSgmm2Accs::Update().

100 { return fmllr_bases_.size() != 0; }

kaldi::Sgmm2FmllrGlobalParams::fmllr_bases_

std::vector< Matrix< BaseFloat > > fmllr_bases_

{W}_b. [b][d][d], dim is [B][D][D+1].

Definition: fmllr-sgmm2.h:109

◆ Init()

void Init	(	const AmSgmm2 &	sgmm,
		const Vector< BaseFloat > &	state_occs
	)

inline

Definition at line 112 of file fmllr-sgmm2.h.

References AmSgmm2::ComputeFmllrPreXform().

                                                                              {
   sgmm.ComputeFmllrPreXform(state_occs, &pre_xform_, &inv_xform_,
                             &mean_scatter_);
 }

◆ IsEmpty()

bool IsEmpty ( ) const

inline

Definition at line 96 of file fmllr-sgmm2.h.

Referenced by FmllrSgmm2Accs::Update().

                        {
     return (pre_xform_.NumRows() == 0 || inv_xform_.NumRows() == 0 ||
             mean_scatter_.Dim() == 0);
   }

◆ Read()

void Read	(	std::istream &	in_stream,
		bool	binary
	)

Definition at line 122 of file fmllr-sgmm2.cc.

References kaldi::ExpectToken(), Sgmm2FmllrGlobalParams::fmllr_bases_, rnnlm::i, Sgmm2FmllrGlobalParams::inv_xform_, KALDI_ERR, Sgmm2FmllrGlobalParams::mean_scatter_, Sgmm2FmllrGlobalParams::pre_xform_, Matrix< Real >::Read(), kaldi::ReadBasicType(), and kaldi::ReadToken().

Referenced by main().

                                                              {
   ExpectToken(in, binary, "<SGMM_FMLLR_GLOBAL_PARAMS>");
   ExpectToken(in, binary, "<PRE_XFORM>");
   pre_xform_.Read(in, binary);
   ExpectToken(in, binary, "<INV_XFORM>");
   inv_xform_.Read(in, binary);
   ExpectToken(in, binary, "<MEAN_SCATTER>");
   mean_scatter_.Read(in, binary);
   std::string token;
   ReadToken(in, binary, &token);
   if (token == "<FMLLR_BASIS>") {
     uint32 tmp;
     ReadBasicType(in, binary, &tmp);
     fmllr_bases_.resize(tmp);
     for (uint32 i = 0; i < tmp; i++) {
       fmllr_bases_[i].Read(in, binary);
     }
   } else {
     if (token != "</SGMM_FMLLR_GLOBAL_PARAMS>")
       KALDI_ERR << "Unexpected token '" << token << "' found.";
   }
 }

◆ Write()

void Write	(	std::ostream &	out_stream,
		bool	binary
	)		const

Definition at line 103 of file fmllr-sgmm2.cc.

References Sgmm2FmllrGlobalParams::fmllr_bases_, rnnlm::i, Sgmm2FmllrGlobalParams::inv_xform_, Sgmm2FmllrGlobalParams::mean_scatter_, Sgmm2FmllrGlobalParams::pre_xform_, MatrixBase< Real >::Write(), kaldi::WriteBasicType(), and kaldi::WriteToken().

Referenced by main().

                                                                      {
   WriteToken(out, binary, "<SGMM_FMLLR_GLOBAL_PARAMS>");
   WriteToken(out, binary, "<PRE_XFORM>");
   pre_xform_.Write(out, binary);
   WriteToken(out, binary, "<INV_XFORM>");
   inv_xform_.Write(out, binary);
   WriteToken(out, binary, "<MEAN_SCATTER>");
   mean_scatter_.Write(out, binary);
   if (fmllr_bases_.size() != 0) {
     WriteToken(out, binary, "<FMLLR_BASIS>");
     uint32 tmp = static_cast<uint32>(fmllr_bases_.size());
     WriteBasicType(out, binary, tmp);
     for (uint32 i = 0; i < tmp; i++) {
       fmllr_bases_[i].Write(out, binary);
     }
   }
   WriteToken(out, binary, "</SGMM_FMLLR_GLOBAL_PARAMS>");
 }