hmmstatearc.java

来自「It is the Speech recognition software. 」· Java 代码 · 共 66 行

/*
 * Copyright 1999-2002 Carnegie Mellon University.  
 * Portions Copyright 2002 Sun Microsystems, Inc.  
 * Portions Copyright 2002 Mitsubishi Electric Research Laboratories.
 * All Rights Reserved.  Use is subject to license terms.
 * 
 * See the file "license.terms" for information on usage and
 * redistribution of this file, and for a DISCLAIMER OF ALL 
 * WARRANTIES.
 *
 */

package edu.cmu.sphinx.linguist.acoustic;



/**
 * Represents a transition to single state in an HMM
 *
 * All probabilities are maintained in linear base
 */
public class HMMStateArc {
    private HMMState hmmState;
    private float probability;


    /**
     * Constructs an HMMStateArc
     *
     * @param hmmState destination state for this arc
     * @param probability the probability for this transition
     */
    public HMMStateArc(HMMState hmmState, float probability) {
	this.hmmState = hmmState;
	this.probability = probability;
    }

    /**
     * Gets the HMM associated with this state
     *
     * @return the HMM
     */
    public HMMState getHMMState() {
	return hmmState;
    }

    /**
     * Gets log transition probability 
     *
     * @return the probability in the LogMath log domain
     */
    public float getLogProbability() {
	return probability;
    }

    /**
     * returns a string represntation of the arc
     */
    public String toString() {
	return "HSA " + hmmState + " prob " + probability;
    }
}