LmState Class Reference

Collaboration diagram for LmState:

Classes
struct	ChildrenVectorLessThan
union	ChildType

Public Member Functions
	LmState (const bool is_unigram, const bool is_child_final_order, const float logprob, const float backoff_logprob)
void	SetMyAddress (const int64 address)
void	AddChild (const int32 word, LmState *child_state)
void	AddChild (const int32 word, const float child_prob)
int64	MyAddress () const
bool	IsUnigram () const
bool	IsChildFinalOrder () const
float	Logprob () const
float	BackoffLogprob () const
int32	NumChildren () const
std::pair< int32, union ChildType >	GetChild (const int32 index)
void	SortChildren ()
bool	IsLeaf () const
int32	MemSize () const

Private Attributes
bool	is_unigram_
bool	is_child_final_order_
int64	my_address_
float	logprob_
float	backoff_logprob_
std::vector< std::pair< int32, union ChildType > >	children_

Detailed Description

Definition at line 55 of file const-arpa-lm.cc.

Constructor & Destructor Documentation

LmState()

LmState ( const bool  is_unigram, const bool  is_child_final_order, const float  logprob, const float  backoff_logprob  )

inline

Definition at line 73 of file const-arpa-lm.cc.

                                                            :
      is_unigram_(is_unigram), is_child_final_order_(is_child_final_order),
      logprob_(logprob), backoff_logprob_(backoff_logprob) {}

Member Function Documentation

AddChild() [1/2]

void AddChild ( const int32  word, LmState *  child_state  )

inline

Definition at line 82 of file const-arpa-lm.cc.

References KALDI_ASSERT, and LmState::ChildType::state.

                                                        {
    KALDI_ASSERT(!is_child_final_order_);
    ChildType child;
    child.state = child_state;
    children_.push_back(std::make_pair(word, child));
  }

AddChild() [2/2]

void AddChild ( const int32  word, const float  child_prob  )

inline

Definition at line 89 of file const-arpa-lm.cc.

References KALDI_ASSERT, and LmState::ChildType::prob.

                                                          {
    KALDI_ASSERT(is_child_final_order_);
    ChildType child;
    child.prob = child_prob;
    children_.push_back(std::make_pair(word, child));
  }

BackoffLogprob()

float BackoffLogprob ( ) const

inline

Definition at line 112 of file const-arpa-lm.cc.

                               {
    return backoff_logprob_;
  }

GetChild()

std::pair<int32, union ChildType> GetChild ( const int32  index )

inline

Definition at line 120 of file const-arpa-lm.cc.

References KALDI_ASSERT.

                                                              {
    KALDI_ASSERT(index < children_.size());
    KALDI_ASSERT(index >= 0);
    return children_[index];
  }

IsChildFinalOrder()

bool IsChildFinalOrder ( ) const

inline

Definition at line 104 of file const-arpa-lm.cc.

                                 {
    return is_child_final_order_;
  }

IsLeaf()

bool IsLeaf ( ) const

inline

Definition at line 131 of file const-arpa-lm.cc.

                      {
    return (backoff_logprob_ == 0.0 && children_.empty());
  }

IsUnigram()

bool IsUnigram ( ) const

inline

Definition at line 100 of file const-arpa-lm.cc.

                         {
    return is_unigram_;
  }

Logprob()

float Logprob ( ) const

inline

Definition at line 108 of file const-arpa-lm.cc.

                        {
    return logprob_;
  }

MemSize()

int32 MemSize ( ) const

inline

Definition at line 137 of file const-arpa-lm.cc.

                        {
    if (IsLeaf() && !is_unigram_) {
      // We don't create an entry in this case; the logprob will be stored in
      // the same int32 that we would normally store the pointer in.
      return 0;
    } else {
      // We store the following information:
      // logprob, backoff_logprob, children.size() and children data.
      return (3 + 2 * children_.size());
    }
  }

MyAddress()

int64 MyAddress ( ) const

inline

Definition at line 96 of file const-arpa-lm.cc.

                          {
    return my_address_;
  }

NumChildren()

int32 NumChildren ( ) const

inline

Definition at line 116 of file const-arpa-lm.cc.

                            {
    return children_.size();
  }

SetMyAddress()

void SetMyAddress ( const int64  address )

inline

Definition at line 78 of file const-arpa-lm.cc.

                                         {
    my_address_ = address;
  }

SortChildren()

void SortChildren ( )

inline

Definition at line 126 of file const-arpa-lm.cc.

                      {
    std::sort(children_.begin(), children_.end(), ChildrenVectorLessThan());
  }

Member Data Documentation

backoff_logprob_

float backoff_logprob_

private

Definition at line 169 of file const-arpa-lm.cc.

children_

std::vector<std::pair<int32, union ChildType> > children_

private

Definition at line 172 of file const-arpa-lm.cc.

is_child_final_order_

bool is_child_final_order_

private

Definition at line 156 of file const-arpa-lm.cc.

is_unigram_

bool is_unigram_

private

Definition at line 152 of file const-arpa-lm.cc.

logprob_

float logprob_

private

Definition at line 165 of file const-arpa-lm.cc.

my_address_

int64 my_address_

private

Definition at line 161 of file const-arpa-lm.cc.

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

• lm/const-arpa-lm.cc