NnetChainExample Struct Reference

NnetChainExample is like NnetExample, but specialized for lattice-free (chain) training. More...

#include <nnet-chain-example.h>

Collaboration diagram for NnetChainExample:

Public Member Functions
void	Write (std::ostream &os, bool binary) const
void	Read (std::istream &is, bool binary)
void	Swap (NnetChainExample *other)
void	Compress ()
	NnetChainExample ()
	NnetChainExample (const NnetChainExample &other)
bool	operator== (const NnetChainExample &other) const

Public Attributes
std::vector< NnetIo >	inputs
	'inputs' contains the input to the network– normally just it has just one element called "input", but there may be others (e.g. More...
std::vector< NnetChainSupervision >	outputs
	'outputs' contains the chain output supervision. More...

Detailed Description

NnetChainExample is like NnetExample, but specialized for lattice-free (chain) training.

Definition at line 110 of file nnet-chain-example.h.

Constructor & Destructor Documentation

NnetChainExample() [1/2]

NnetChainExample ( )

inline

Definition at line 129 of file nnet-chain-example.h.

{ }

NnetChainExample() [2/2]

NnetChainExample

(

const NnetChainExample &

other

)

Definition at line 189 of file nnet-chain-example.cc.

                                                               :
    inputs(other.inputs), outputs(other.outputs) { }

Member Function Documentation

Compress()

void Compress

(

)

Definition at line 182 of file nnet-chain-example.cc.

                                {
  std::vector<NnetIo>::iterator iter = inputs.begin(), end = inputs.end();
  // calling features.Compress() will do nothing if they are sparse or already
  // compressed.
  for (; iter != end; ++iter) iter->features.Compress();
}

operator==()

bool operator== ( const NnetChainExample &  other ) const

inline

Definition at line 133 of file nnet-chain-example.h.

References NnetChainExample::inputs, and NnetChainExample::outputs.

                                                         {
    return inputs == other.inputs && outputs == other.outputs;
  }

Read()

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

Definition at line 157 of file nnet-chain-example.cc.

References kaldi::nnet3::ExpectToken(), rnnlm::i, KALDI_ERR, NnetChainSupervision::Read(), and kaldi::ReadBasicType().

                                                       {
  ExpectToken(is, binary, "<Nnet3ChainEg>");
  ExpectToken(is, binary, "<NumInputs>");
  int32 size;
  ReadBasicType(is, binary, &size);
  if (size < 1 || size > 1000000)
    KALDI_ERR << "Invalid size " << size;
  inputs.resize(size);
  for (int32 i = 0; i < size; i++)
    inputs[i].Read(is, binary);
  ExpectToken(is, binary, "<NumOutputs>");
  ReadBasicType(is, binary, &size);
  if (size < 1 || size > 1000000)
    KALDI_ERR << "Invalid size " << size;
  outputs.resize(size);
  for (int32 i = 0; i < size; i++)
    outputs[i].Read(is, binary);
  ExpectToken(is, binary, "</Nnet3ChainEg>");
}

Swap()

void Swap

(

NnetChainExample *

other

)

Definition at line 177 of file nnet-chain-example.cc.

References NnetChainExample::inputs, and NnetChainExample::outputs.

                                                   {
  inputs.swap(other->inputs);
  outputs.swap(other->outputs);
}

Write()

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

Definition at line 132 of file nnet-chain-example.cc.

References rnnlm::i, KALDI_ASSERT, kaldi::WriteBasicType(), and kaldi::WriteToken().

                                                              {
  // Note: weight, label, input_frames and spk_info are members.  This is a
  // struct.
  WriteToken(os, binary, "<Nnet3ChainEg>");
  WriteToken(os, binary, "<NumInputs>");
  int32 size = inputs.size();
  WriteBasicType(os, binary, size);
  KALDI_ASSERT(size > 0 && "Attempting to write NnetChainExample with no inputs");
  if (!binary) os << '\n';
  for (int32 i = 0; i < size; i++) {
    inputs[i].Write(os, binary);
    if (!binary) os << '\n';
  }
  WriteToken(os, binary, "<NumOutputs>");
  size = outputs.size();
  WriteBasicType(os, binary, size);
  KALDI_ASSERT(size > 0 && "Attempting to write NnetChainExample with no outputs");
  if (!binary) os << '\n';
  for (int32 i = 0; i < size; i++) {
    outputs[i].Write(os, binary);
    if (!binary) os << '\n';
  }
  WriteToken(os, binary, "</Nnet3ChainEg>");
}

Member Data Documentation

inputs

std::vector<NnetIo> inputs

'inputs' contains the input to the network– normally just it has just one element called "input", but there may be others (e.g.

one called "ivector")... this depends on the setup.

Definition at line 115 of file nnet-chain-example.h.

Referenced by NnetChainComputeProb::Compute(), kaldi::nnet3::GetChainComputationRequest(), kaldi::nnet3::GetNnetChainExampleSize(), kaldi::nnet3::MergeChainExamples(), NnetChainExampleStructureCompare::operator()(), NnetChainExample::operator==(), kaldi::nnet3::ShiftChainExampleTimes(), NnetChainExample::Swap(), NnetChainTrainer::TrainInternal(), and NnetChainTrainer::TrainInternalBackstitch().

outputs

std::vector<NnetChainSupervision> outputs

'outputs' contains the chain output supervision.

There will normally be just one member with name == "output".

Definition at line 119 of file nnet-chain-example.h.

Referenced by kaldi::nnet3::GetChainComputationRequest(), kaldi::nnet3::GetNnetChainExampleSize(), kaldi::nnet3::MergeChainExamples(), NnetChainExampleStructureCompare::operator()(), NnetChainExample::operator==(), NnetChainTrainer::ProcessOutputs(), NnetChainComputeProb::ProcessOutputs(), kaldi::nnet3::ShiftChainExampleTimes(), and NnetChainExample::Swap().

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The documentation for this struct was generated from the following files:

• nnet3/nnet-chain-example.h
• nnet3/nnet-chain-example.cc