SpecAugmentTimeMaskComponent implements the time part of SpecAugment. More...

#include <nnet-general-component.h>

Inheritance diagram for SpecAugmentTimeMaskComponent:

Collaboration diagram for SpecAugmentTimeMaskComponent:

[legend]

Public Member Functions
virtual int32	InputDim () const
	Returns input-dimension of this component. More...

virtual int32	OutputDim () const
	Returns output-dimension of this component. More...

virtual std::string	Info () const
	Returns some text-form information about this component, for diagnostics. More...

virtual void	InitFromConfig (ConfigLine *cfl)
	Initialize, from a ConfigLine object. More...

	SpecAugmentTimeMaskComponent ()

	SpecAugmentTimeMaskComponent (const SpecAugmentTimeMaskComponent &other)

virtual std::string	Type () const
	Returns a string such as "SigmoidComponent", describing the type of the object. More...

virtual int32	Properties () const
	Return bitmask of the component's properties. More...

virtual void *	Propagate (const ComponentPrecomputedIndexes indexes, const CuMatrixBase< BaseFloat > &in, CuMatrixBase< BaseFloat > out) const
	Propagate function. More...

virtual void	Backprop (const std::string &debug_info, const ComponentPrecomputedIndexes indexes, const CuMatrixBase< BaseFloat > &, const CuMatrixBase< BaseFloat > &, const CuMatrixBase< BaseFloat > &out_deriv, void memo, Component to_update, CuMatrixBase< BaseFloat > in_deriv) const
	Backprop function; depending on which of the arguments 'to_update' and 'in_deriv' are non-NULL, this can compute input-data derivatives and/or perform model update. More...

virtual void	DeleteMemo (void *memo) const
	This virtual function only needs to be overwritten by Components that return a non-NULL memo from their Propagate() function. More...

virtual ComponentPrecomputedIndexes *	PrecomputeIndexes (const MiscComputationInfo &misc_info, const std::vector< Index > &input_indexes, const std::vector< Index > &output_indexes, bool need_backprop) const
	This function must return NULL for simple Components. More...

virtual void	Read (std::istream &is, bool binary)
	Read function (used after we know the type of the Component); accepts input that is missing the token that describes the component type, in case it has already been consumed. More...

virtual void	Write (std::ostream &os, bool binary) const
	Write component to stream. More...

virtual Component *	Copy () const
	Copies component (deep copy). More...

Public Member Functions inherited from RandomComponent
void	ResetGenerator ()

void	SetTestMode (bool test_mode)

	RandomComponent ()

	RandomComponent (const RandomComponent &other)

Public Member Functions inherited from Component
virtual void	StoreStats (const CuMatrixBase< BaseFloat > &in_value, const CuMatrixBase< BaseFloat > &out_value, void *memo)
	This function may store stats on average activation values, and for some component types, the average value of the derivative of the nonlinearity. More...

virtual void	ZeroStats ()
	Components that provide an implementation of StoreStats should also provide an implementation of ZeroStats(), to set those stats to zero. More...

virtual void	GetInputIndexes (const MiscComputationInfo &misc_info, const Index &output_index, std::vector< Index > *desired_indexes) const
	This function only does something interesting for non-simple Components. More...

virtual bool	IsComputable (const MiscComputationInfo &misc_info, const Index &output_index, const IndexSet &input_index_set, std::vector< Index > *used_inputs) const
	This function only does something interesting for non-simple Components, and it exists to make it possible to manage optionally-required inputs. More...

virtual void	ReorderIndexes (std::vector< Index > input_indexes, std::vector< Index > output_indexes) const
	This function only does something interesting for non-simple Components. More...

virtual void	Scale (BaseFloat scale)
	This virtual function when called on – an UpdatableComponent scales the parameters by "scale" when called by an UpdatableComponent. More...

virtual void	Add (BaseFloat alpha, const Component &other)
	This virtual function when called by – an UpdatableComponent adds the parameters of another updatable component, times some constant, to the current parameters. More...

virtual void	ConsolidateMemory ()
	This virtual function relates to memory management, and avoiding fragmentation. More...

	Component ()

virtual	~Component ()

Private Member Functions
CuVector< BaseFloat > *	GetMemo (const SpecAugmentTimeMaskComponentPrecomputedIndexes &indexes) const

const SpecAugmentTimeMaskComponent &	operator= (const SpecAugmentTimeMaskComponent &other)

Private Attributes
int32	dim_

BaseFloat	zeroed_proportion_

int32	time_mask_max_frames_

Additional Inherited Members
Static Public Member Functions inherited from Component
static Component *	ReadNew (std::istream &is, bool binary)
	Read component from stream (works out its type). Dies on error. More...

static Component *	NewComponentOfType (const std::string &type)
	Returns a new Component of the given type e.g. More...

Protected Attributes inherited from RandomComponent
CuRand< BaseFloat >	random_generator_

bool	test_mode_

Detailed Description

SpecAugmentTimeMaskComponent implements the time part of SpecAugment.

Instead of zeroing out a single time-region of the input, though, it zeroes out multiple smaller time-regions.

Configuration values accepted on the command line, with defaults:

dim Dimension of the input and output of this component, e.g. 512

zeroed-proportion=0.25 Proportion of the input that is to be zeroed; should be in the range (0, 1).

time-mask-max-frames=10 The maximum time duration of the *zeroed* regions. The non-zeroed regions in between will have maximum duration equal to this times (1-z)/z, where z is zeroed-proportion.

Definition at line 1017 of file nnet-general-component.h.

Constructor & Destructor Documentation

◆ SpecAugmentTimeMaskComponent() [1/2]

SpecAugmentTimeMaskComponent ( )

Definition at line 1898 of file nnet-general-component.cc.

Referenced by SpecAugmentTimeMaskComponent::Copy().

                                                           :
     dim_(-1), zeroed_proportion_(0.25),
     time_mask_max_frames_(10) { }

◆ SpecAugmentTimeMaskComponent() [2/2]

SpecAugmentTimeMaskComponent ( const SpecAugmentTimeMaskComponent & other )

Definition at line 1902 of file nnet-general-component.cc.

                                               :
     dim_(other.dim_),
     zeroed_proportion_(other.zeroed_proportion_),
     time_mask_max_frames_(other.time_mask_max_frames_) { }

Member Function Documentation

◆ Backprop()

void Backprop	(	const std::string &	debug_info,
		const ComponentPrecomputedIndexes *	indexes,
		const CuMatrixBase< BaseFloat > &	in_value,
		const CuMatrixBase< BaseFloat > &	out_value,
		const CuMatrixBase< BaseFloat > &	out_deriv,
		void *	memo,
		Component *	to_update,
		CuMatrixBase< BaseFloat > *	in_deriv
	)		const

virtual

Backprop function; depending on which of the arguments 'to_update' and 'in_deriv' are non-NULL, this can compute input-data derivatives and/or perform model update.

Parameters

[in]	debug_info	The component name, to be printed out in any warning messages.
[in]	indexes	A pointer to some information output by this class's PrecomputeIndexes function (will be NULL for simple components, i.e. those that don't do things like splicing).
[in]	in_value	The matrix that was given as input to the Propagate function. Will be ignored (and may be empty) if Properties()&kBackpropNeedsInput == 0.
[in]	out_value	The matrix that was output from the Propagate function. Will be ignored (and may be empty) if Properties()&kBackpropNeedsOutput == 0
[in]	out_deriv	The derivative at the output of this component.
[in]	memo	This will normally be NULL, but for component types that set the flag kUsesMemo, this will be the return value of the Propagate() function that corresponds to this Backprop() function. Ownership of any pointers is not transferred to the Backprop function; DeleteMemo() will be called to delete it.
[out]	to_update	If model update is desired, the Component to be updated, else NULL. Does not have to be identical to this. If supplied, you can assume that to_update->Properties() & kUpdatableComponent is nonzero.
[out]	in_deriv	The derivative at the input of this component, if needed (else NULL). If Properties()&kBackpropInPlace, may be the same matrix as out_deriv. If Properties()&kBackpropAdds, this is added to by the Backprop routine, else it is set. The component code chooses which mode to work in, based on convenience.

Implements Component.

Definition at line 1931 of file nnet-general-component.cc.

References CuMatrixBase< Real >::CopyFromMat(), KALDI_ASSERT, CuMatrixBase< Real >::MulRowsVec(), NVTX_RANGE, kaldi::SameDim(), RandomComponent::test_mode_, and SpecAugmentTimeMaskComponent::zeroed_proportion_.

                                              {
   NVTX_RANGE("SpecAugmentTimeMaskComponent::Backprop");
   KALDI_ASSERT(in_deriv != NULL && SameDim(*in_deriv, out_deriv));
 
   // The following will do no work if in_deriv->Data() == out_deriv.Data().
   in_deriv->CopyFromMat(out_deriv);
 
   if (test_mode_ || zeroed_proportion_ == 0.0) {
     KALDI_ASSERT(memo == NULL);
     return;
   }
 
   const SpecAugmentTimeMaskComponentPrecomputedIndexes *indexes =
     dynamic_cast<const SpecAugmentTimeMaskComponentPrecomputedIndexes*>(indexes_in);
   KALDI_ASSERT(indexes != NULL && memo != NULL);
   CuVector<BaseFloat> *mask = reinterpret_cast<CuVector<BaseFloat>*>(memo);
 
   in_deriv->MulRowsVec(*mask);
 }

◆ Copy()

Component * Copy ( ) const

virtual

Copies component (deep copy).

Implements Component.

Definition at line 1989 of file nnet-general-component.cc.

References SpecAugmentTimeMaskComponent::SpecAugmentTimeMaskComponent().

                                                     {
   return new SpecAugmentTimeMaskComponent(*this);
 }

◆ DeleteMemo()

virtual void DeleteMemo ( void * memo ) const

inlinevirtual

This virtual function only needs to be overwritten by Components that return a non-NULL memo from their Propagate() function.

It's called by NnetComputer in cases where Propagate returns a memo but there will be no backprop to consume it.

Reimplemented from Component.

Definition at line 1048 of file nnet-general-component.h.

References DistributeComponent::Copy(), DistributeComponent::PrecomputeIndexes(), DistributeComponent::Read(), and DistributeComponent::Write().

                                             {
     delete static_cast<CuVector<BaseFloat>*>(memo);
   }

◆ GetMemo()

CuVector< BaseFloat > * GetMemo ( const SpecAugmentTimeMaskComponentPrecomputedIndexes & indexes ) const

private

Definition at line 2005 of file nnet-general-component.cc.

References SpecAugmentTimeMaskComponentPrecomputedIndexes::indexes, KALDI_ASSERT, kaldi::kUndefined, kaldi::RandInt(), SpecAugmentTimeMaskComponent::time_mask_max_frames_, SpecAugmentTimeMaskComponentPrecomputedIndexes::tot_size, kaldi::WithProb(), and SpecAugmentTimeMaskComponent::zeroed_proportion_.

Referenced by SpecAugmentTimeMaskComponent::Propagate().

                                                                             {
 
   const std::vector<std::vector<int32> > &indexes = indexes_in.indexes;
   int32 num_sequences = indexes.size();
   BaseFloat z = zeroed_proportion_;
   int32 time_mask_max_frames = time_mask_max_frames_,
       non_time_mask_max_frames = time_mask_max_frames * (1-z) / z;
   KALDI_ASSERT(time_mask_max_frames > 0 &&
                non_time_mask_max_frames > 0);
   Vector<BaseFloat> mask(indexes_in.tot_size, kUndefined);
 
   for (int32 s = 0; s < num_sequences; s++) {
     // this_row_indexes gives us, for a particular sequence, the ordered list of
     // row-indexes where we can find the successive 't' values of this sequence.
     const std::vector<int32> this_row_indexes = indexes[s];
     int32 seq_length = this_row_indexes.size();
     KALDI_ASSERT(seq_length > 0);
 
     int32 t = 0;
     while (t < seq_length) {
       // add a non-zeroed, then a zeroed, segment, repeatedly until we have
       // filled the sequence.  The first time we choose randomly whether to add
       // a zeroed or a non-zeroed segment.
       if (t > 0 || WithProb(z)) {
         int32 nonzeroed_length = RandInt(1, non_time_mask_max_frames);
         for (; t < seq_length && nonzeroed_length > 0; t++, nonzeroed_length--)
           mask(this_row_indexes[t]) = 1.0;
       }
       int32 zeroed_length = RandInt(1, time_mask_max_frames);
       for (; t < seq_length && zeroed_length > 0; t++, zeroed_length--)
         mask(this_row_indexes[t]) = 0.0;
     }
   }
   return new CuVector<BaseFloat>(mask);
 }

◆ Info()

std::string Info ( ) const

virtual

Returns some text-form information about this component, for diagnostics.

Starts with the type of the component. E.g. "SigmoidComponent dim=900", although most components will have much more info.

Reimplemented from Component.

Definition at line 1889 of file nnet-general-component.cc.

References GeneralDropoutComponent::dim_, and GeneralDropoutComponent::Type().

                                                    {
   std::ostringstream stream;
   stream << Type()
          << ", dim=" << dim_
          << ", zeroed-proportion=" << zeroed_proportion_
          << ", time-mask-max-frames=" << time_mask_max_frames_;
   return stream.str();
 }

◆ InitFromConfig()

void InitFromConfig ( ConfigLine * cfl )

virtual

Initialize, from a ConfigLine object.

Parameters

[in] cfl A ConfigLine containing any parameters that are needed for initialization. For example: "dim=100 param-stddev=0.1"

Implements Component.

Definition at line 1993 of file nnet-general-component.cc.

References SpecAugmentTimeMaskComponent::dim_, ConfigLine::GetValue(), KALDI_ASSERT, SpecAugmentTimeMaskComponent::time_mask_max_frames_, and SpecAugmentTimeMaskComponent::zeroed_proportion_.

                                                                  {
   dim_ = 0;
   bool ok = cfl->GetValue("dim", &dim_);
   KALDI_ASSERT(ok && dim_ > 0);
   zeroed_proportion_ = 0.25;
   cfl->GetValue("zeroed-proportion", &zeroed_proportion_);
   time_mask_max_frames_ = 10;
   cfl->GetValue("time-mask-max-frames", &time_mask_max_frames_);
   KALDI_ASSERT(time_mask_max_frames_ > 1);
 }

◆ InputDim()

virtual int32 InputDim ( ) const

inlinevirtual

Returns input-dimension of this component.

Implements Component.

Definition at line 1019 of file nnet-general-component.h.

1019 { return dim_; }

kaldi::nnet3::SpecAugmentTimeMaskComponent::dim_

int32 dim_

Definition: nnet-general-component.h:1071

◆ operator=()

const SpecAugmentTimeMaskComponent& operator= ( const SpecAugmentTimeMaskComponent & other )

private

◆ OutputDim()

virtual int32 OutputDim ( ) const

inlinevirtual

Returns output-dimension of this component.

Implements Component.

Definition at line 1021 of file nnet-general-component.h.

References Component::Info(), and DistributeComponent::InitFromConfig().

1021 { return dim_; }

kaldi::nnet3::SpecAugmentTimeMaskComponent::dim_

int32 dim_

Definition: nnet-general-component.h:1071

◆ PrecomputeIndexes()

ComponentPrecomputedIndexes * PrecomputeIndexes	(	const MiscComputationInfo &	misc_info,
		const std::vector< Index > &	input_indexes,
		const std::vector< Index > &	output_indexes,
		bool	need_backprop
	)		const

virtual

This function must return NULL for simple Components.

Returns a pointer to a class that may contain some precomputed component-specific and computation-specific indexes to be in used in the Propagate and Backprop functions.

Parameters

[in]	misc_info	This argument is supplied to handle things that the framework can't very easily supply: information like which time indexes are needed for AggregateComponent, which time-indexes are available at the input of a recurrent network, and so on. misc_info may not even ever be used here. We will add members to misc_info as needed.
[in]	input_indexes	A vector of indexes that explains what time-indexes (and other indexes) each row of the in/in_value/in_deriv matrices given to Propagate and Backprop will mean.
[in]	output_indexes	A vector of indexes that explains what time-indexes (and other indexes) each row of the out/out_value/out_deriv matrices given to Propagate and Backprop will mean.
[in]	need_backprop	True if we might need to do backprop with this component, so that if any different indexes are needed for backprop then those should be computed too.

Returns: Returns a child-class of class ComponentPrecomputedIndexes, or NULL if this component for does not need to precompute any indexes (e.g. if it is a simple component and does not care about indexes).

Reimplemented from Component.

Definition at line 2042 of file nnet-general-component.cc.

References rnnlm::i, SpecAugmentTimeMaskComponentPrecomputedIndexes::indexes, KALDI_ASSERT, rnnlm::n, and SpecAugmentTimeMaskComponentPrecomputedIndexes::tot_size.

                                 {
   KALDI_ASSERT(input_indexes == output_indexes);
 
   SpecAugmentTimeMaskComponentPrecomputedIndexes *ans = new
       SpecAugmentTimeMaskComponentPrecomputedIndexes;
   int32 size = input_indexes.size();
   KALDI_ASSERT(size != 0);
   // 'sort_indexes' will contain the n and t values and then
   // the index into input_indexes.  When we sort these, it will
   // sort first on the n value and then on the t, which will allow us
   // to create ans->indexes.
   std::vector<std::tuple<int32, int32, int32> > sort_indexes(size);
 
   std::unordered_set<int32> all_n_values;  // just for determining how many
                                            // there are.
   for (int32 i = 0; i < size; i++) {
     int32 n = input_indexes[i].n;
     all_n_values.insert(n);
     std::get<0>(sort_indexes[i]) = n;
     std::get<1>(sort_indexes[i]) = input_indexes[i].t;
     std::get<2>(sort_indexes[i]) = i;
   }
   std::sort(sort_indexes.begin(), sort_indexes.end());
 
   // the stuff with n_idx is because we don't assume the
   // n values start from zero and are consecutive.
   int32 num_n_values = all_n_values.size(),
       n_idx = 0,
       cur_n_value = std::get<0>(sort_indexes[0]);
   ans->indexes.resize(num_n_values);
   for (int32 i = 0; i < size; i++) {
     std::tuple<int32, int32, int32> &tp(sort_indexes[i]);
     int32 n = std::get<0>(tp),
         row_index = std::get<2>(tp);
     KALDI_ASSERT(n >= cur_n_value);
     if (n > cur_n_value) {
       n_idx++;
       KALDI_ASSERT(n_idx < num_n_values);
       cur_n_value = n;
     }
     ans->indexes[n_idx].push_back(row_index);
   }
   n_idx++;
   KALDI_ASSERT(n_idx == num_n_values);
   ans->tot_size = size;
   return ans;
 }

◆ Propagate()

void * Propagate	(	const ComponentPrecomputedIndexes *	indexes,
		const CuMatrixBase< BaseFloat > &	in,
		CuMatrixBase< BaseFloat > *	out
	)		const

virtual

Propagate function.

Parameters

[in]	indexes	A pointer to some information output by this class's PrecomputeIndexes function (will be NULL for simple components, i.e. those that don't do things like splicing).
[in]	in	The input to this component. Num-columns == InputDim().
[out]	out	The output of this component. Num-columns == OutputDim(). Note: output of this component will be added to the initial value of "out" if Properties()&kPropagateAdds != 0; otherwise the output will be set and the initial value ignored. Each Component chooses whether it is more convenient implementation-wise to add or set, and the calling code has to deal with it.

Returns: Normally returns NULL, but may return a non-NULL value for components which have the flag kUsesMemo set. This value will be passed into the corresponding Backprop routine.

Implements Component.

Definition at line 1908 of file nnet-general-component.cc.

References CuMatrixBase< Real >::CopyFromMat(), SpecAugmentTimeMaskComponent::GetMemo(), KALDI_ASSERT, CuMatrixBase< Real >::MulRowsVec(), kaldi::SameDim(), RandomComponent::test_mode_, and SpecAugmentTimeMaskComponent::zeroed_proportion_.

                                         {
 
   KALDI_ASSERT(SameDim(in, *out));
 
   // The following will do nothing if 'out' and 'in' refer to the same data.
   out->CopyFromMat(in);
 
   if (test_mode_ ||
       zeroed_proportion_ == 0.0)
     return NULL;
 
   const SpecAugmentTimeMaskComponentPrecomputedIndexes *indexes =
     dynamic_cast<const SpecAugmentTimeMaskComponentPrecomputedIndexes*>(indexes_in);
   KALDI_ASSERT(indexes != NULL);
 
   CuVector<BaseFloat> *mask = GetMemo(*indexes);
   out->MulRowsVec(*mask);
   return mask;
 }

◆ Properties()

virtual int32 Properties ( ) const

inlinevirtual

Return bitmask of the component's properties.

These properties depend only on the component's type. See enum ComponentProperties.

Implements Component.

Definition at line 1032 of file nnet-general-component.h.

References DistributeComponent::Backprop(), kaldi::nnet3::kBackpropInPlace, kaldi::nnet3::kPropagateInPlace, kaldi::nnet3::kRandomComponent, kaldi::nnet3::kUsesMemo, and DistributeComponent::Propagate().

                                    {
     return kRandomComponent|kPropagateInPlace|kBackpropInPlace|kUsesMemo;
   }

◆ Read()

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

virtual

Read function (used after we know the type of the Component); accepts input that is missing the token that describes the component type, in case it has already been consumed.

Implements Component.

Definition at line 1959 of file nnet-general-component.cc.

References SpecAugmentTimeMaskComponent::dim_, kaldi::ExpectOneOrTwoTokens(), kaldi::nnet3::ExpectToken(), kaldi::PeekToken(), kaldi::ReadBasicType(), RandomComponent::test_mode_, SpecAugmentTimeMaskComponent::time_mask_max_frames_, and SpecAugmentTimeMaskComponent::zeroed_proportion_.

                                                                    {
   ExpectOneOrTwoTokens(is, binary, "<SpecAugmentTimeMaskComponent>", "<Dim>");
   ReadBasicType(is, binary, &dim_);
   ExpectToken(is, binary, "<ZeroedProportion>");
   ReadBasicType(is, binary, &zeroed_proportion_);
   ExpectToken(is, binary, "<TimeMaskMaxFrames>");
   ReadBasicType(is, binary, &time_mask_max_frames_);
   if (PeekToken(is, binary) == 'T') {
     ExpectToken(is, binary, "<TestMode>");
     test_mode_ = true;
   } else {
     test_mode_ = false;
   }
   ExpectToken(is, binary, "</SpecAugmentTimeMaskComponent>");
 }

◆ Type()

virtual std::string Type ( ) const

inlinevirtual

Returns a string such as "SigmoidComponent", describing the type of the object.

Implements Component.

Definition at line 1031 of file nnet-general-component.h.

1031 { return "SpecAugmentTimeMaskComponent"; }

◆ Write()

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

virtual

Write component to stream.

Implements Component.

Definition at line 1976 of file nnet-general-component.cc.

References SpecAugmentTimeMaskComponent::dim_, RandomComponent::test_mode_, SpecAugmentTimeMaskComponent::time_mask_max_frames_, kaldi::WriteBasicType(), kaldi::WriteToken(), and SpecAugmentTimeMaskComponent::zeroed_proportion_.

                                                                           {
   WriteToken(os, binary, "<SpecAugmentTimeMaskComponent>");
   WriteToken(os, binary, "<Dim>");
   WriteBasicType(os, binary, dim_);
   WriteToken(os, binary, "<ZeroedProportion>");
   WriteBasicType(os, binary, zeroed_proportion_);
   WriteToken(os, binary, "<TimeMaskMaxFrames>");
   WriteBasicType(os, binary, time_mask_max_frames_);
   if (test_mode_)
     WriteToken(os, binary, "<TestMode>");
   WriteToken(os, binary, "</SpecAugmentTimeMaskComponent>");
 }

Member Data Documentation

◆ dim_

int32 dim_

private

Definition at line 1071 of file nnet-general-component.h.

Referenced by SpecAugmentTimeMaskComponent::InitFromConfig(), SpecAugmentTimeMaskComponent::Read(), and SpecAugmentTimeMaskComponent::Write().

◆ time_mask_max_frames_

int32 time_mask_max_frames_

private

Definition at line 1075 of file nnet-general-component.h.

Referenced by SpecAugmentTimeMaskComponent::GetMemo(), SpecAugmentTimeMaskComponent::InitFromConfig(), SpecAugmentTimeMaskComponent::Read(), and SpecAugmentTimeMaskComponent::Write().

◆ zeroed_proportion_

BaseFloat zeroed_proportion_

private

Definition at line 1073 of file nnet-general-component.h.

Referenced by SpecAugmentTimeMaskComponent::Backprop(), SpecAugmentTimeMaskComponent::GetMemo(), SpecAugmentTimeMaskComponent::InitFromConfig(), SpecAugmentTimeMaskComponent::Propagate(), SpecAugmentTimeMaskComponent::Read(), and SpecAugmentTimeMaskComponent::Write().

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

nnet3/nnet-general-component.h
nnet3/nnet-general-component.cc

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SpecAugmentTimeMaskComponent() [1/2]

◆ SpecAugmentTimeMaskComponent() [2/2]

Member Function Documentation

◆ Backprop()

◆ Copy()

◆ DeleteMemo()

◆ GetMemo()

◆ Info()

◆ InitFromConfig()

◆ InputDim()

◆ operator=()

◆ OutputDim()

◆ PrecomputeIndexes()

◆ Propagate()

◆ Properties()

◆ Read()

◆ Type()

◆ Write()

Member Data Documentation

◆ dim_

◆ time_mask_max_frames_

◆ zeroed_proportion_