同じベース音素の同じ位置にあるHMM状態の集合 [詳細]

データ構造
struct	CD_State_Set
struct	CD_Set
	Context-dependent HMM set (called "pseudo") for a logical context. [詳細]
struct	HMM_CDSET_INFO
	Top structure to hold all the HMM sets. [詳細]
struct	HMM_Logical
	Logical HMM to map logical names to physical/pseudo HMM. [詳細]
#define	CD_STATE_SET_STEP 10
static void	cdset_init (HTK_HMM_INFO *hmminfo)
	Initialize total pseudo HMM information in the given HMM definition data.
static CD_Set *	cdset_new ()
	Allocate a CD_Set data for a new pseudo phone set.
CD_Set *	cdset_lookup (HTK_HMM_INFO hmminfo, char cdstr)
	Look up for a pseudo phone with the name, and return the content.
CD_Set *	lcdset_lookup_by_hmmname (HTK_HMM_INFO hmminfo, char hmmname)
	Look up for a pseudo phone by the "left - center" name of the given phone name.
CD_Set *	rcdset_lookup_by_hmmname (HTK_HMM_INFO hmminfo, char hmmname)
	Look up for a pseudo phone by the "center + right" name of the given phone name.
static void	put_cdset (void *ptr)
	Output text information of a pseudo phone to stdout.
void	put_all_cdinfo (HTK_HMM_INFO *hmminfo)
	Output all pseudo phone set information to stdout.
boolean	regist_cdset (APATNODE *root, HTK_HMM_Data d, char cdname, BMALLOC_BASE *mroot)
	Register a physical HMM as a member of a pseudo phone set.
boolean	make_cdset (HTK_HMM_INFO *hmminfo)
	Construct the whole pseudo HMM information, and also add them to the logical Triphone tree.
static void	callback_free_lcdset_content (void *arg)
	callback for aptree function to free the content of pseudo phone set.
void	free_cdset (APATNODE root, BMALLOC_BASE mroot)
	Remove all the registered category-indexed pseudo state sets.

説明

同じベース音素の同じ位置にあるHMM状態の集合

この構造体は第１パスで単語間トライフォンを扱うのに用いられます．木構造化辞書上で，単語の末端のトライフォンHMMにおける各状態は，通常のHMMとは異なりその終端音素と同じベース音素を持つトライフォンの同じ位置の状態のリストを持ちます．このリスト化されたコンテキスト依存 HMMの集合は，"pseudo" phone とも呼ばれます．

第１パス計算時には，その状態の音響尤度は，真の単語間トライフォンの近似値として，リスト中の各状態の音響尤度の最大値（あるいは平均値，あるいはNbestの状態の平均値）が用いられる．

この近似値は第２パスで再計算される．

参照:: htk_hmm.h; libsent/src/hmminfo/cdhmm.c; libsent/src/hmminfo/cdset.c; libsent/src/hmminfo/guess_cdHMM.c

マクロ定義

#define CD_STATE_SET_STEP 10

CD_State_Set memory allocation step

cdset.c の 80 行で定義されています。

参照元 regist_cdset().

関数

static void cdset_init ( HTK_HMM_INFO * hmminfo ) [static]

Initialize total pseudo HMM information in the given HMM definition data.

引数:

hmminfo [i/o] HTK HMM definitions

cdset.c の 88 行で定義されています。

参照元 make_cdset().

static CD_Set* cdset_new ( ) [static]

Allocate a CD_Set data for a new pseudo phone set.

戻り値:: pointer to newly allocated CD_Set.

cdset.c の 100 行で定義されています。

参照元 regist_cdset().

CD_Set* cdset_lookup	(	HTK_HMM_INFO *	hmminfo,
		char *	cdstr
	)

Look up for a pseudo phone with the name, and return the content.

引数:

hmminfo	[in] HMM information to search for.
cdstr	[in] string of pseudo phone name to search.

戻り値:: pointer to the pseudo phone if found, or NULL if not found.

cdset.c の 114 行で定義されています。

参照元 hmm_add_pseudo_phones_sub(), lcdset_lookup_by_hmmname(), と rcdset_lookup_by_hmmname().

CD_Set* lcdset_lookup_by_hmmname	(	HTK_HMM_INFO *	hmminfo,
		char *	hmmname
	)

Look up for a pseudo phone by the "left - center" name of the given phone name.

引数:

hmminfo	[in] HMM information to search for.
hmmname	[in] string of the phone name.

戻り値:: pointer to the pseudo phone if found, or NULL if not found.

cdset.c の 134 行で定義されています。

参照元 outprob_style(), と wchmm_add_word().

CD_Set* rcdset_lookup_by_hmmname	(	HTK_HMM_INFO *	hmminfo,
		char *	hmmname
	)

Look up for a pseudo phone by the "center + right" name of the given phone name.

引数:

hmminfo	[in] HMM information to search for.
hmmname	[in] string of the phone name.

戻り値:: pointer to the pseudo phone if found, or NULL if not found.

cdset.c の 150 行で定義されています。

static void put_cdset ( void * ptr ) [static]

Output text information of a pseudo phone to stdout.

引数:

ptr	[in] pointer to a pseudo phone set.

cdset.c の 164 行で定義されています。

参照元 put_all_cdinfo().

void put_all_cdinfo ( HTK_HMM_INFO * hmminfo )

Output all pseudo phone set information to stdout.

引数:

hmminfo [in] HMM definition data that holds pseudo phone data.

cdset.c の 195 行で定義されています。

boolean regist_cdset	(	APATNODE **	root,
		HTK_HMM_Data *	d,
		char *	cdname,
		BMALLOC_BASE **	mroot
	)

Register a physical HMM as a member of a pseudo phone set.

引数:

root	[i/o] root node of HMM search index node.
d	[in] a physical defined HMM to be added.
cdname	[in] name of the pseudo phone set.

戻り値:: TRUE if newly registered, FALSE if the specified physical HMM already exists in the pseudo phone.

cdset.c の 211 行で定義されています。

参照元 make_cdset().

boolean make_cdset ( HTK_HMM_INFO * hmminfo )

Construct the whole pseudo HMM information, and also add them to the logical Triphone tree.

引数:

hmminfo [i/o] HMM definition data. The generated data will also be stored within this.

戻り値:: TRUE on success, FALSE on failure.

cdset.c の 324 行で定義されています。

参照元 initialize_HMM().

static void callback_free_lcdset_content ( void * arg ) [static]

callback for aptree function to free the content of pseudo phone set.

引数:

arg	[in] pointer to the pseudo phone set to be free

cdset.c の 362 行で定義されています。

参照元 free_cdset().

void free_cdset	(	APATNODE **	root,
		BMALLOC_BASE **	mroot
	)

Remove all the registered category-indexed pseudo state sets.

This function will be called when a grammar is changed to re-build the state sets.

引数:

root	[i/o] pointer to hold the root index pointer

cdset.c の 384 行で定義されています。

参照元 hmminfo_free().

データ構造

説明

マクロ定義

関数