C# Class Ocronet.Dynamic.OcroFST.FstUtil

Public Methods

Method	Description
fst_copy ( IGenericFst dst, IGenericFst src ) : void	Copy one FST to another.
fst_copy_best_arcs_only ( IGenericFst dst, IGenericFst src ) : void	Copy one FST to another, preserving only lowest-cost arcs. This is useful for visualization.
fst_copy_reverse ( IGenericFst dst, IGenericFst src, bool no_accept = false ) : void	Reverse the FST's arcs, adding a new start vertex (former accept).
fst_expand_composition ( IGenericFst outf, OcroFST f1, OcroFST f2 ) : void	Compose two FSTs. This function copies the composition of two given FSTs. That causes expansion (storing all arcs explicitly).
fst_line ( IGenericFst fst, string s ) : void
fst_sample ( Intarray result, IGenericFst fst, int max = 1000 ) : double	Randomly sample an FST, assuming any input.
fst_sample ( string &result, IGenericFst fst, int max ) : double	Randomly sample an FST, assuming any input.
fst_star ( IGenericFst fst ) : void	Make an in-place Kleene closure of the FST.
fst_star ( IGenericFst result, IGenericFst fst ) : void	Make a Kleene closure.
remove_epsilons ( string &outs, Intarray a ) : void	Remove epsilons (zeros) and converts integers to string.
sample_by_costs ( Floatarray costs ) : int	Pick an array element with probability proportional to exp(-cost).
scale_fst ( OcroFST fst, float scale ) : void

Copy one FST to another.

public static fst_copy ( IGenericFst dst, IGenericFst src ) : void
dst	Ocronet.Dynamic.Interfaces.IGenericFst	The destination. Will be cleared before copying.
src	Ocronet.Dynamic.Interfaces.IGenericFst	The FST to copy.
return	void

Copy one FST to another, preserving only lowest-cost arcs. This is useful for visualization.

public static fst_copy_best_arcs_only ( IGenericFst dst, IGenericFst src ) : void
dst	Ocronet.Dynamic.Interfaces.IGenericFst	The destination. Will be cleared before copying.
src	Ocronet.Dynamic.Interfaces.IGenericFst	The FST to copy.
return	void

Reverse the FST's arcs, adding a new start vertex (former accept).

public static fst_copy_reverse ( IGenericFst dst, IGenericFst src, bool no_accept = false ) : void
dst	Ocronet.Dynamic.Interfaces.IGenericFst
src	Ocronet.Dynamic.Interfaces.IGenericFst
no_accept	bool
return	void

Compose two FSTs. This function copies the composition of two given FSTs. That causes expansion (storing all arcs explicitly).

public static fst_expand_composition ( IGenericFst outf, OcroFST f1, OcroFST f2 ) : void
outf	Ocronet.Dynamic.Interfaces.IGenericFst
f1	OcroFST
f2	OcroFST
return	void

public static fst_line ( IGenericFst fst, string s ) : void
fst	Ocronet.Dynamic.Interfaces.IGenericFst
s	string
return	void

Randomly sample an FST, assuming any input.

public static fst_sample ( Intarray result, IGenericFst fst, int max = 1000 ) : double
result	Intarray	The array of output symbols, excluding epsilons.
fst	Ocronet.Dynamic.Interfaces.IGenericFst	The FST.
max	int	The maximum length of the result.
return	double

Randomly sample an FST, assuming any input.

public static fst_sample ( string &result, IGenericFst fst, int max ) : double
result	string
fst	Ocronet.Dynamic.Interfaces.IGenericFst
max	int
return	double

Make an in-place Kleene closure of the FST.

public static fst_star ( IGenericFst fst ) : void
fst	Ocronet.Dynamic.Interfaces.IGenericFst
return	void

Make a Kleene closure.

public static fst_star ( IGenericFst result, IGenericFst fst ) : void
result	Ocronet.Dynamic.Interfaces.IGenericFst
fst	Ocronet.Dynamic.Interfaces.IGenericFst
return	void

Remove epsilons (zeros) and converts integers to string.

public static remove_epsilons ( string &outs, Intarray a ) : void
outs	string
a	Intarray
return	void

Pick an array element with probability proportional to exp(-cost).

public static sample_by_costs ( Floatarray costs ) : int
costs	Floatarray
return	int

public static scale_fst ( OcroFST fst, float scale ) : void
fst	OcroFST
scale	float
return	void