julius/wchmm.h File Reference

Structure Definition of tree lexicon and word trellis. More...

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Data Structures
struct	s_cell
struct	wchmm_state
struct	wchmm_info
struct	__trellis_atom__
struct	__backtrellis__
Defines
#define	MAXWCNSTEP   40000
	Number of states to be allocated at once.
Typedefs
typedef s_cell	S_CELL
typedef wchmm_state	WCHMM_STATE
typedef wchmm_info	WCHMM_INFO
typedef __trellis_atom__	TRELLIS_ATOM
typedef __backtrellis__	BACKTRELLIS

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Detailed Description

Structure Definition of tree lexicon and word trellis.

Author:

Akinobu Lee

Date:

Sun Sep 18 21:31:32 2005

This file defines structure for word-conjunction HMM, aka tree lexicon for recognition of 1st pass. Words in the dictionary are gathered to build a tree lexicon. The lexicon is built per HMM state basis, with their HMM output probabilities, transition arcs, and other informations for search such as successor word lists and maximum uni-gram scores for LM factoring, word head/tail marker, phoneme start marker, and so on.

Revision

1.5

Definition in file wchmm.h.

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Typedef Documentation

typedef struct s_cell S_CELL

Element of successor word list for LM factoring computation.

typedef struct wchmm_state WCHMM_STATE

HMM state on tree lexicon.

typedef struct wchmm_info WCHMM_INFO

Whole lexicon tree structure holding all information.

typedef struct __trellis_atom__ TRELLIS_ATOM

Word trellis element that holds survived word ends at each frame on the 1st pass.

typedef struct __backtrellis__ BACKTRELLIS

Whole word trellis (aka backtrellis) generated as a result of 1st pass.

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