org.knowceans.topics.cgen
Class Pam5iGibbsSampler

java.lang.Object
  org.knowceans.topics.cgen.Pam5iGibbsSampler

public class Pam5iGibbsSampler
extends java.lang.Object

Generated Gibbs sampler for the PAM5 model. 5-level pachinko allocation model, which extends the basic 4-level model by an additional hierarchy level. Testing C1B structures and hyperparameter grouping.

Implementation using samplers.

Mixture network specification:

 m >> (theta[m] | alpha) >> x[m][n]
 m, x[m][n] >> (thetax[m,x] | gamma[x]) >> y[m][n]
 m, y[m][n] >> (thetay[m,y] | delta[y]) >> z[m][n]
 z[m][n] >> (phi[z] | beta) >> w[m][n]
 
 
 elements:
 
    document m
    type: {ROOT|E3COUPLED}
    parents: (root)
    children: theta thetax thetay
    range: M
 ----
    topic-topic (thetay[m,y] | delta[y])
    type: {SEQUENCE|C1BSEQADD}
    parents: m y
    children: z
    components: thetay, domain: M *  L, range: J
    counts: nmyz, sum: nmyzsum
    index: my, selector: m,y
    hyperparams: delta, dimension: L * J, selector: y, fixed: false 
 ----
    topic z[m][n]
    type: {HIDDEN|E1SINGLE}
    parents: thetay
    children: phi
    range: J
 ----
    topic-word (phi[z] | beta)
    type: {TOPIC|C1ASINGLE}
    parents: z
    children: w
    components: phi, domain: J, range: V
    counts: nzw, sum: nzwsum
    index: z, selector: null
    hyperparams: beta, dimension 1, fixed: false 
 ----
    word w[m][n]
    type: {VISIBLE|E1SINGLE}
    parents: phi
    children: (leaf)
    range: V
 ----
    topic-topic (thetax[m,x] | gamma[x])
    type: {SEQUENCE|C1BSEQADD}
    parents: m x
    children: y
    components: thetax, domain: M *  K, range: L
    counts: nmxy, sum: nmxysum
    index: mx, selector: m,x
    hyperparams: gamma, dimension: K * L, selector: x, fixed: false 
 ----
    topic y[m][n]
    type: {HIDDEN|E1SINGLE}
    parents: thetax
    children: thetay
    range: L
 ----
    doc-topic (theta[m] | alpha)
    type: {SEQUENCE|C1ROOT}
    parents: m
    children: x
    components: theta, domain: M, range: K
    counts: nmx, sum: null
    index: m, selector: null
    hyperparams: alpha, dimension 1, fixed: false 
 ----
    topic x[m][n]
    type: {HIDDEN|E1SINGLE}
    parents: theta
    children: thetax
    range: K
 ----
 sequences:
 
 words [m][n]
 parent: (root), children: []
 edges: m x y 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) double[][]	delta
(package private) double[]	deltasum
(package private) double[][]	gamma
(package private) double[]	gammasum
(package private) int	iter
(package private) int	J
(package private) int	K
(package private) int	L
(package private) int	M
(package private) int	Mq
(package private) int	niter
(package private) int[][]	nmx
(package private) int[][]	nmxq
(package private) int[][]	nmxy
(package private) int[][]	nmxyq
(package private) int[]	nmxysum
(package private) int[]	nmxysumq
(package private) int[][]	nmyz
(package private) int[][]	nmyzq
(package private) int[]	nmyzsum
(package private) int[]	nmyzsumq
(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[][]	x
(package private) int[][]	xq
(package private) int[][]	y
(package private) int[][]	yq
(package private) int[][]	z
(package private) int[][]	zq

Constructor Summary

Pam5iGibbsSampler(double delta, int J, double beta, int[][] w, int[][] wq, int V, double gamma, int L, double alpha, int K, 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

nmyz

int[][] nmyz

nmyzq

int[][] nmyzq

nmyzsum

int[] nmyzsum

nmyzsumq

int[] nmyzsumq

delta

double[][] delta

deltasum

double[] deltasum

z

int[][] z

zq

int[][] zq

J

int J

nzw

int[][] nzw

nzwsum

int[] nzwsum

beta

double beta

betasum

double betasum

phi

double[][] phi

w

int[][] w

wq

int[][] wq

V

int V

nmxy

int[][] nmxy

nmxyq

int[][] nmxyq

nmxysum

int[] nmxysum

nmxysumq

int[] nmxysumq

gamma

double[][] gamma

gammasum

double[] gammasum

y

int[][] y

yq

int[][] yq

L

int L

nmx

int[][] nmx

nmxq

int[][] nmxq

alpha

double alpha

alphasum

double alphasum

x

int[][] x

xq

int[][] xq

K

int K

W

int W

Wq

int Wq

pp

double[] pp

Constructor Detail

Pam5iGibbsSampler

public Pam5iGibbsSampler(double delta,
                         int J,
                         double beta,
                         int[][] w,
                         int[][] wq,
                         int V,
                         double gamma,
                         int L,
                         double alpha,
                         int K,
                         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