org.knowceans.topics.cgen
Class LdaGibbsSampler

java.lang.Object
  org.knowceans.topics.cgen.LdaGibbsSampler

public class LdaGibbsSampler
extends java.lang.Object

Generated Gibbs sampler for the LDA model. Mixture network specification:

 m >> (theta[m] | alpha) >> z[m][n]
 z[m][n] >> (phi[z] | beta) >> w[m][n]
 
 
 elements:
 
 document m
 type: {ROOT|E1SINGLE}
 parents: (root)
 children: theta
 range: M
 ----
 doc-topic (theta[m] | alpha)
 type: {SEQUENCE|C1ROOT}
 parents: m
 children: z
 components: theta, domain: M, range: K, index: m, selector: null
 hyperparams: alpha, dimension 1, fixed: false
 ----
 topic z[m][n]
 type: {HIDDEN|E1SINGLE}
 parents: theta
 children: phi
 range: K
 ----
 topic-word (phi[z] | beta)
 type: {TOPIC|C1ASINGLE}
 parents: z
 children: w
 components: phi, domain: K, range: V, index: z, selector: null
 hyperparams: beta, dimension 1, fixed: false
 ----
 word w[m][n]
 type: {VISIBLE|E1SINGLE}
 parents: phi
 children: (leaf)
 range: V
 ----
 sequences:
 
 words [m][n]
 parent: (root), children: []
 edges: m z w
 
 

Author:

gregor heinrich (via MixNetKernelGenerator)

Field Summary

(package private) double	alpha
(package private) double	alphasum
(package private) double	beta
(package private) double	betasum
(package private) int	iter
(package private) int	K
(package private) int	M
(package private) int	Mq
(package private) int	niter
(package private) int[][]	nmz
(package private) int[][]	nmzq
(package private) int[][]	nzw
(package private) int[]	nzwsum
(package private) double[][]	phi
(package private) double[]	pp
(package private) java.util.Random	rand
(package private) int	V
(package private) int[][]	w
(package private) int	W
(package private) int[][]	wq
(package private) int	Wq
(package private) int[][]	z
(package private) int[][]	zq

Constructor Summary

LdaGibbsSampler(double alpha, int K, double beta, int[][] w, int[][] wq, int V, java.util.Random rand)

Method Summary

void	estAlpha()
void	init()
void	initq()
static void	main(java.lang.String[] args)
double	ppx()
void	run(int niter)
void	runq(int niterq)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

rand

java.util.Random rand

iter

int iter

niter

int niter

M

int M

Mq

int Mq

nmz

int[][] nmz

nmzq

int[][] nmzq

alpha

double alpha

alphasum

double alphasum

z

int[][] z

zq

int[][] zq

K

int K

nzw

int[][] nzw

nzwsum

int[] nzwsum

beta

double beta

betasum

double betasum

phi

double[][] phi

w

int[][] w

wq

int[][] wq

V

int V

W

int W

Wq

int Wq

pp

double[] pp

Constructor Detail

LdaGibbsSampler

public LdaGibbsSampler(double alpha,
                       int K,
                       double beta,
                       int[][] w,
                       int[][] wq,
                       int V,
                       java.util.Random rand)

Method Detail

main

public static void main(java.lang.String[] args)

init

public void init()

initq

public void initq()

run

public void run(int niter)

runq

public void runq(int niterq)

estAlpha

public void estAlpha()

ppx

public double ppx()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object