edu.illinois.cs.cogcomp.lbjava.learn

Class NaiveBayes.Count

java.lang.Object

edu.illinois.cs.cogcomp.lbjava.learn.NaiveBayes.Count

All Implemented Interfaces:

Serializable, Cloneable

Enclosing class:

NaiveBayes

protected static class NaiveBayes.Count
extends Object
implements Cloneable, Serializable

A Count object stores two doubles, one which holds a accumulated count value and the other intended to hold the natural logarithm of the count. The object also contains a boolean flag that is set when the log needs to be updated.

Author:

Nick Rizzolo

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double	count The accumulated value.
protected double	logCount The natural logartihm of count is sometimes stored here.
protected boolean	updateLog A flag that is set iff logCount is not up to date.

Constructor Summary

Constructors

Constructor and Description
Count() Sets the count to 0.

Method Summary

Modifier and Type	Method and Description
Object	clone() This method returns a shallow clone.
double	getCount() Returns the integer count.
double	getLog() Returns the log after updating it.
void	increment(double inc) Increments the count, but does not update the log.
void	read(edu.illinois.cs.cogcomp.core.datastructures.vectors.ExceptionlessInputStream in) Reads the binary representation of a count into this object, overwriting any data that may already be here.
String	toString() The string representation of a Count object is simply the integer count.
void	write(edu.illinois.cs.cogcomp.core.datastructures.vectors.ExceptionlessOutputStream out) Writes the count's internal representation in binary form.

Methods inherited from class java.lang.Object

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

Field Detail

count

protected double count

The accumulated value.

logCount

protected transient double logCount

The natural logartihm of count is sometimes stored here.

updateLog

protected transient boolean updateLog

A flag that is set iff logCount is not up to date.

Constructor Detail

Count

public Count()

Sets the count to 0.

Method Detail

getCount

public double getCount()

Returns the integer count.

increment

public void increment(double inc)

Increments the count, but does not update the log.

Parameters:

inc - The amount the count should be incremented by.

getLog

public double getLog()

Returns the log after updating it.

toString

public String toString()

The string representation of a Count object is simply the integer count.

Overrides:

toString in class Object

write

public void write(edu.illinois.cs.cogcomp.core.datastructures.vectors.ExceptionlessOutputStream out)

Writes the count's internal representation in binary form.

Parameters:

out - The output stream.

read

public void read(edu.illinois.cs.cogcomp.core.datastructures.vectors.ExceptionlessInputStream in)

Reads the binary representation of a count into this object, overwriting any data that may already be here.

Parameters:

in - The input stream.

clone

public Object clone()

This method returns a shallow clone.

Overrides:

clone in class Object

Returns:

A shallow clone.