fsg_pnode_s Struct Reference

an fsg node. All transitions (words) out of any given FSG state represented are by a phonetic prefix lextree (except for epsilon or null transitions; they are not part of the lextree). Lextree leaf nodes represent individual FSG transitions, so no sharing is allowed at the leaf nodes. The FSG transition probs are distributed along the lextree: the prob at a node is the max of the probs of all leaf nodes (and, hence, FSG transitions) reachable from that node. More...

#include <fsg_psubtree.h>

List of all members.

Public Attributes
union {
fsg_pnode_s *   succ
word_fsglink_t *   fsglink
}	next
fsg_pnode_s *	alloc_next
fsg_pnode_s *	sibling
int32	logs2prob
fsg_pnode_ctxt_t	ctxt
uint8	ci_ext
uint8	ppos
uint8	leaf
hmm_t	hmm

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Detailed Description

an fsg node. All transitions (words) out of any given FSG state represented are by a phonetic prefix lextree (except for epsilon or null transitions; they are not part of the lextree). Lextree leaf nodes represent individual FSG transitions, so no sharing is allowed at the leaf nodes. The FSG transition probs are distributed along the lextree: the prob at a node is the max of the probs of all leaf nodes (and, hence, FSG transitions) reachable from that node.

To conserve memory, the underlying HMMs with state-level information are allocated only as needed. Root and leaf nodes must also account for all the possible phonetic contexts, with an independent HMM for each distinct context.

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Member Data Documentation

struct fsg_pnode_s* fsg_pnode_s::alloc_next

uint8 fsg_pnode_s::ci_ext

fsg_pnode_ctxt_t fsg_pnode_s::ctxt

word_fsglink_t* fsg_pnode_s::fsglink

hmm_t fsg_pnode_s::hmm

uint8 fsg_pnode_s::leaf

int32 fsg_pnode_s::logs2prob

union { ... } fsg_pnode_s::next

If this is not a leaf node, the first successor (child) node. Otherwise the parent FSG transition for which this is the leaf node (for figuring the FSG destination state, and word emitted by the transition). A node may have several children. The succ ptr gives just the first; the rest are linked via the sibling ptr below.

uint8 fsg_pnode_s::ppos

struct fsg_pnode_s* fsg_pnode_s::sibling

struct fsg_pnode_s* fsg_pnode_s::succ

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

• /.automount/bigbird/root/usr4/sphinx/project/SourceForge/regression/doxygen715/sphinx3/include/fsg_psubtree.h

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