trf Namespace Reference

Classes
class	AISConfig
class	Algfb
class	AlgNode
	the forward-backward algorithms for TRF model More...
class	CorpusBase
class	CorpusRandSelect
class	CorpusTxt
class	Feat
	include all the feature table More...
class	FeatStyle
	Analyse a determinate feat style (without ":") More...
class	FeatTable
	define the feature style. such as "w3"(word-3gram); "c2"(class-2gram); More...
class	LearningRate
class	MLfunc
class	Model
	TRF model. More...
class	Model_FastSample
	TRF model, revise the sample method to speedup the MCMC. More...
class	Msg
class	RandSeq
class	SAfunc
class	SAtrain
class	Seq
	define a sequence including the word sequence and class sequence More...
class	ThreadData
class	VecIter
class	Vocab

Typedefs
typedef double	PValue
typedef double	LogP
typedef double	Prob
typedef int	VocabID

Functions
int	omp_rand (int thread_num)
LogP	LogLineNormalize (LogP *pdProbs, int nNum)
int	LogLineSampling (const LogP *pdProbs, int nNum)
void	LineNormalize (Prob *pdProbs, int nNum)
int	LineSampling (const Prob *pdProbs, int nNum)
bool	Acceptable (Prob prob)
void	RandomPos (int *a, int len, int n)
double	dRand (double dmin, double dmax)
	get a random float between dmin and dmax More...
int	omp_nrand (int nMin, int nMax)
	get a random integer int [nMin, nMax-1] More...
void	EasySmooth (Prob *p, int num, Prob threshold=1e-5)
	smooth a distribution More...
double	GetAISFactor (int t, int T)
	Get the AIS intermediate factor beta_t. More...
double	SigmFunc (double x)
	calculate the sigmoid function f(x) = 1/(1+exp(-x)) More...
Prob	LogP2Prob (LogP x)
LogP	Prob2LogP (Prob x)
LogP	Log_Sum (LogP x, LogP y)
LogP	Log_Sub (LogP x, LogP y)
	log[exp(x)-exp(y)] More...
LogP	Log_Sum (LogP *p, int num)
	log summate all the values in array More...
int	qsort_compare_double (const void *a, const void *b)

Variables
const float	INF = 1e20
const float	LogP_zero = -INF
const int	c_nMaxOrder = 100
const int	VocabID_none = -1
const int	VocabID_seqbeg = -3
const int	VocabID_seqend = -2

Typedef Documentation

LogP

typedef double trf::LogP

Definition at line 27 of file trf-def.h.

Prob

typedef double trf::Prob

Definition at line 28 of file trf-def.h.

PValue

typedef double trf::PValue

Definition at line 26 of file trf-def.h.

VocabID

typedef int trf::VocabID

Definition at line 23 of file trf-vocab.h.

Function Documentation

Acceptable()

bool trf::Acceptable

(

Prob

prob

)

Definition at line 127 of file trf-def.cpp.

dRand()

double trf::dRand	(	double	dmin,
		double	dmax
	)

get a random float between dmin and dmax

Definition at line 147 of file trf-def.cpp.

EasySmooth()

void trf::EasySmooth	(	Prob *	p,
		int	num,
		Prob	threshold
	)

smooth a distribution

Definition at line 157 of file trf-def.cpp.

GetAISFactor()

double trf::GetAISFactor	(	int	t,
		int	T
	)

Get the AIS intermediate factor beta_t.

Definition at line 165 of file trf-def.cpp.

LineNormalize()

void trf::LineNormalize	(	Prob *	pdProbs,
		int	nNum
	)

Definition at line 87 of file trf-def.cpp.

LineSampling()

int trf::LineSampling	(	const Prob *	pdProbs,
		int	nNum
	)

Definition at line 103 of file trf-def.cpp.

Log_Sub()

LogP trf::Log_Sub ( LogP  x, LogP  y  )

inline

log[exp(x)-exp(y)]

Definition at line 44 of file trf-def.h.

Log_Sum() [1/2]

LogP trf::Log_Sum ( LogP  x, LogP  y  )

inline

Definition at line 40 of file trf-def.h.

Log_Sum() [2/2]

LogP trf::Log_Sum ( LogP *  p, int  num  )

inline

log summate all the values in array

Definition at line 48 of file trf-def.h.

LogLineNormalize()

LogP trf::LogLineNormalize	(	LogP *	pdProbs,
		int	nNum
	)

Definition at line 53 of file trf-def.cpp.

LogLineSampling()

int trf::LogLineSampling	(	const LogP *	pdProbs,
		int	nNum
	)

Definition at line 62 of file trf-def.cpp.

LogP2Prob()

Prob trf::LogP2Prob ( LogP  x )

inline

Definition at line 33 of file trf-def.h.

omp_nrand()

int trf::omp_nrand	(	int	nMin,
		int	nMax
	)

get a random integer int [nMin, nMax-1]

Definition at line 152 of file trf-def.cpp.

omp_rand()

int trf::omp_rand

(

int

thread_num = -1

)

a thread-safe version of rand() if thread_num != -1, then init the thread state if thread_num = -1, then get a random values.

Definition at line 23 of file trf-def.cpp.

Prob2LogP()

LogP trf::Prob2LogP ( Prob  x )

inline

Definition at line 36 of file trf-def.h.

qsort_compare_double()

int trf::qsort_compare_double	(	const void *	a,
		const void *	b
	)

Definition at line 137 of file trf-sa-train.cpp.

RandomPos()

void trf::RandomPos	(	int *	a,
		int	len,
		int	n
	)

Definition at line 132 of file trf-def.cpp.

SigmFunc()

double trf::SigmFunc

(

double

x

)

calculate the sigmoid function f(x) = 1/(1+exp(-x))

Definition at line 177 of file trf-def.cpp.

Variable Documentation

c_nMaxOrder

const int trf::c_nMaxOrder = 100

Definition at line 24 of file trf-feature.h.

INF

const float trf::INF = 1e20

Definition at line 29 of file trf-def.h.

LogP_zero

const float trf::LogP_zero = -INF

Definition at line 30 of file trf-def.h.

VocabID_none

const int trf::VocabID_none = -1

Definition at line 24 of file trf-vocab.h.

VocabID_seqbeg

const int trf::VocabID_seqbeg = -3

Definition at line 25 of file trf-vocab.h.

VocabID_seqend

const int trf::VocabID_seqend = -2

Definition at line 26 of file trf-vocab.h.