CompactLatticeWeightTpl< WeightType, IntType > Class Template Reference

#include <lattice-weight.h>

Collaboration diagram for CompactLatticeWeightTpl< WeightType, IntType >:

Public Types
typedef WeightType	W
typedef CompactLatticeWeightTpl< WeightType, IntType >	ReverseWeight

Public Member Functions
	CompactLatticeWeightTpl ()
	CompactLatticeWeightTpl (const WeightType &w, const std::vector< IntType > &s)
CompactLatticeWeightTpl &	operator= (const CompactLatticeWeightTpl< WeightType, IntType > &w)
const W &	Weight () const
const std::vector< IntType > &	String () const
void	SetWeight (const W &w)
void	SetString (const std::vector< IntType > &s)
CompactLatticeWeightTpl< WeightType, IntType >	Reverse () const
bool	Member () const
CompactLatticeWeightTpl	Quantize (float delta=kDelta) const
std::istream &	Read (std::istream &strm)
std::ostream &	Write (std::ostream &strm) const
size_t	Hash () const

Static Public Member Functions
static const CompactLatticeWeightTpl< WeightType, IntType >	Zero ()
static const CompactLatticeWeightTpl< WeightType, IntType >	One ()
static std::string	GetIntSizeString ()
static const std::string &	Type ()
static const CompactLatticeWeightTpl< WeightType, IntType >	NoWeight ()
static constexpr uint64	Properties ()

Private Attributes
W	weight_
std::vector< IntType >	string_

Detailed Description

template<class WeightType, class IntType>
class fst::CompactLatticeWeightTpl< WeightType, IntType >

Definition at line 423 of file lattice-weight.h.

Member Typedef Documentation

ReverseWeight

typedef CompactLatticeWeightTpl<WeightType, IntType> ReverseWeight

Definition at line 427 of file lattice-weight.h.

W

typedef WeightType W

Definition at line 425 of file lattice-weight.h.

Constructor & Destructor Documentation

CompactLatticeWeightTpl() [1/2]

CompactLatticeWeightTpl ( )

inline

Definition at line 436 of file lattice-weight.h.

{ }

CompactLatticeWeightTpl() [2/2]

CompactLatticeWeightTpl ( const WeightType &  w, const std::vector< IntType > &  s  )

inline

Definition at line 438 of file lattice-weight.h.

                                                                           :
      weight_(w), string_(s) { }

Member Function Documentation

GetIntSizeString()

static std::string GetIntSizeString ( )

inlinestatic

Definition at line 465 of file lattice-weight.h.

                                             {
    char buf[2];
    buf[0] = '0' + sizeof(IntType);
    buf[1] = '\0';
    return buf;
  }

Hash()

size_t Hash ( ) const

inline

Definition at line 541 of file lattice-weight.h.

References rnnlm::i.

                      {
    size_t ans = weight_.Hash();
    // any weird numbers here are largish primes
    size_t sz = string_.size(), mult = 6967;
    for(size_t i = 0; i < sz; i++) {
      ans += string_[i] * mult;
      mult *= 7499;
    }
    return ans;
  }

Member()

bool Member ( ) const

inline

Definition at line 491 of file lattice-weight.h.

Referenced by fst::CompactLatticeWeightTest().

                      {
    // a semiring has only one zero, this is the important property
    // we're trying to maintain here.  So force string_ to be empty if
    // w_ == zero.
    if (!weight_.Member()) return false;
    if (weight_ == WeightType::Zero())
      return string_.empty();
    else
      return true;
  }

NoWeight()

static const CompactLatticeWeightTpl<WeightType, IntType> NoWeight ( )

inlinestatic

Definition at line 477 of file lattice-weight.h.

                                                                       {
    return CompactLatticeWeightTpl<WeightType, IntType>(
        WeightType::NoWeight(), std::vector<IntType>());
  }

One()

static const CompactLatticeWeightTpl<WeightType, IntType> One ( )

inlinestatic

Definition at line 460 of file lattice-weight.h.

Referenced by kaldi::nnet2::AppendDiscriminativeExamples(), fst::CompactLatticeWeightTest(), kaldi::GenerateCompactLatticeRandomly(), SingleUtteranceNnet2DecoderThreaded::GetLattice(), LatticeLexiconWordAligner::ProcessFinal(), LatticePhoneAligner::ProcessQueueElement(), LatticeWordAligner::ProcessQueueElement(), and LatticeReader::ReadText().

                                                                  {
    return CompactLatticeWeightTpl<WeightType, IntType>(
        WeightType::One(), std::vector<IntType>());
  }

operator=()

CompactLatticeWeightTpl& operator= ( const CompactLatticeWeightTpl< WeightType, IntType > &  w )

inline

Definition at line 441 of file lattice-weight.h.

References CompactLatticeWeightTpl< WeightType, IntType >::string_, and CompactLatticeWeightTpl< WeightType, IntType >::weight_.

                                                                                            {
    weight_ = w.weight_;
    string_ = w.string_;
    return *this;
  }

Properties()

static constexpr uint64 Properties ( )

inlinestatic

Definition at line 506 of file lattice-weight.h.

                                       {
    return kLeftSemiring | kRightSemiring | kPath | kIdempotent;
  }

Quantize()

CompactLatticeWeightTpl Quantize ( float  delta = kDelta ) const

inline

Definition at line 502 of file lattice-weight.h.

Referenced by fst::CompactLatticeWeightTest().

                                                               {
    return CompactLatticeWeightTpl(weight_.Quantize(delta), string_);
  }

Read()

std::istream& Read ( std::istream &  strm )

inline

Definition at line 512 of file lattice-weight.h.

References rnnlm::i, and KALDI_WARN.

Referenced by fst::CompactLatticeWeightTest().

                                     {
    weight_.Read(strm);
    if (strm.fail()){ return strm; }
    int32 sz;
    ReadType(strm, &sz);
    if (strm.fail()){ return strm; }
    if (sz < 0) {
      KALDI_WARN << "Negative string size!  Read failure";
      strm.clear(std::ios::badbit);
      return strm;
    }
    string_.resize(sz);
    for(int32 i = 0; i < sz; i++) {
      ReadType(strm, &(string_[i]));
    }
    return strm;
  }

Reverse()

CompactLatticeWeightTpl<WeightType, IntType> Reverse ( ) const

inline

Definition at line 483 of file lattice-weight.h.

References rnnlm::i.

                                                               {
    size_t s = string_.size();
    std::vector<IntType> v(s);
    for(size_t i = 0; i < s; i++)
      v[i] = string_[s-i-1];
    return CompactLatticeWeightTpl<WeightType, IntType>(weight_, v);
  }

SetString()

void SetString ( const std::vector< IntType > &  s )

inline

Definition at line 453 of file lattice-weight.h.

Referenced by fst::operator>>().

{ string_ = s; }

SetWeight()

void SetWeight ( const W &  w )

inline

Definition at line 451 of file lattice-weight.h.

Referenced by kaldi::CompactLatticeNormalize(), fst::operator>>(), LatticeIncrementalDeterminizer::ProcessArcsFromChunkStartState(), and kaldi::RescoreCompactLatticeInternal().

{ weight_ = w; }

String()

const std::vector<IntType>& String ( ) const

inline

Definition at line 449 of file lattice-weight.h.

Referenced by fst::ApproxEqual(), fst::Compare(), fst::Divide(), CompactLatticeMinimizer< Weight, IntType >::InitHashValue(), fst::operator!=(), CompactLatticeWeightCommonDivisorTpl< BaseWeightType, IntType >::operator()(), fst::operator==(), fst::ScaleTupleWeight(), WordAlignedLatticeTester::TestFinal(), fst::Times(), and CompactLatticeMinimizer< Weight, IntType >::UpdateHashValueForTransition().

{ return string_; }

Type()

static const std::string& Type ( )

inlinestatic

Definition at line 471 of file lattice-weight.h.

                                 {
    static const std::string type = "compact" + WeightType::Type()
        + GetIntSizeString();
    return type;
  }

Weight()

const W& Weight ( ) const

inline

Definition at line 447 of file lattice-weight.h.

Referenced by fst::ApproxEqual(), kaldi::CompactLatticeNormalize(), fst::Compare(), fst::Divide(), fst::operator!=(), CompactLatticeWeightCommonDivisorTpl< BaseWeightType, IntType >::operator()(), fst::operator==(), LatticeIncrementalDeterminizer::ProcessArcsFromChunkStartState(), kaldi::RescoreCompactLatticeInternal(), fst::ScaleTupleWeight(), and fst::Times().

{ return weight_; }

Write()

std::ostream& Write ( std::ostream &  strm ) const

inline

Definition at line 532 of file lattice-weight.h.

References rnnlm::i.

                                            {
    weight_.Write(strm);
    if (strm.fail()){ return strm; }
    int32 sz = static_cast<int32>(string_.size());
    WriteType(strm, sz);
    for(int32 i = 0; i < sz; i++)
      WriteType(strm, string_[i]);
    return strm;
  }

Zero()

static const CompactLatticeWeightTpl<WeightType, IntType> Zero ( )

inlinestatic

Definition at line 455 of file lattice-weight.h.

Referenced by CompactLatticePusher< Weight, IntType >::ApplyShifts(), CompactLatticePusher< Weight, IntType >::CheckForConflict(), kaldi::CompactLatticeStateTimes(), fst::CompactLatticeWeightTest(), CompactLatticePusher< Weight, IntType >::ComputeShifts(), fst::Divide(), CompactLatticePusher< Weight, IntType >::GetString(), CompactLatticeMinimizer< Weight, IntType >::InitHashValue(), kaldi::LongestSentenceLength(), LatticePhoneAligner::ProcessQueueElement(), LatticeWordAligner::ProcessQueueElement(), LatticeLexiconWordAligner::ProcessQueueElement(), fst::PushCompactLatticeWeights(), kaldi::RescoreCompactLatticeInternal(), LatticeReader::StrToCWeight(), WordAlignedLatticeTester::Test(), kaldi::TestPushCompactLatticeStrings(), and fst::Times().

                                                                   {
    return CompactLatticeWeightTpl<WeightType, IntType>(
        WeightType::Zero(), std::vector<IntType>());
  }

Member Data Documentation

string_

std::vector<IntType> string_

private

Definition at line 553 of file lattice-weight.h.

Referenced by CompactLatticeWeightTpl< WeightType, IntType >::operator=().

weight_

W weight_

private

Definition at line 552 of file lattice-weight.h.

Referenced by CompactLatticeWeightTpl< WeightType, IntType >::operator=().

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

• fstext/lattice-weight.h