edu.umd.hooka.ttables

Class TTable_sliced

java.lang.Object

edu.umd.hooka.ttables.TTable

edu.umd.hooka.ttables.TTable_sliced

All Implemented Interfaces:

Cloneable

public class TTable_sliced
extends TTable
implements Cloneable

Data structure that stores translation probabilities p(f|e) or counts c(f,e). The set of values (*,e) associated with a particular e are stored adjacent to one another in an array. For a given f in (f,e) the location of the f is found using a binary search. Layout: http://www.umiacs.umd.edu/~redpony/ttable-structure.png

Author:

redpony

Constructor Summary

Constructors

Constructor and Description
TTable_sliced()
TTable_sliced(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p)
TTable_sliced(int e_voc_size)
TTable_sliced(int e_voc_size, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p)

Method Summary

Methods

Modifier and Type	Method and Description
void	add_addr(long coord, float delta)
void	add(int e, int f, float delta)
void	clear()
Object	clone()
float	get(int e, int f) public void plusEquals(int e, IndexedFloatArray fs) { checkE(e); _data[e].plusEquals(fs); }
long	getCoord(int e, int f)
int	getMaxE()
int	getMaxF()
void	normalize()
void	prune(float threshold)
void	set(int e, IndexedFloatArray fs)
void	set(int e, int f, float value)
String	toString()
void	write()

Methods inherited from class edu.umd.hooka.ttables.TTable

prepare

Methods inherited from class java.lang.Object

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

Constructor Detail

TTable_sliced

public TTable_sliced()

TTable_sliced

public TTable_sliced(int e_voc_size)

TTable_sliced

public TTable_sliced(org.apache.hadoop.fs.FileSystem fs,
             org.apache.hadoop.fs.Path p)
              throws IOException

Throws:

IOException

TTable_sliced

public TTable_sliced(int e_voc_size,
             org.apache.hadoop.fs.FileSystem fs,
             org.apache.hadoop.fs.Path p)

Method Detail

clone

public Object clone()

Specified by:

clone in class TTable

getMaxF

public int getMaxF()

getMaxE

public int getMaxE()

add

public void add(int e,
       int f,
       float delta)

Specified by:

add in class TTable

set

public void set(int e,
       int f,
       float value)

Specified by:

set in class TTable

getCoord

public long getCoord(int e,
            int f)

add_addr

public void add_addr(long coord,
            float delta)

set

public void set(int e,
       IndexedFloatArray fs)

Specified by:

set in class TTable

get

public float get(int e,
        int f)

public void plusEquals(int e, IndexedFloatArray fs) { checkE(e); _data[e].plusEquals(fs); }

Specified by:

get in class TTable

clear

public void clear()

Specified by:

clear in class TTable

prune

public void prune(float threshold)

normalize

public void normalize()

Specified by:

normalize in class TTable

toString

public String toString()

Overrides:

toString in class Object

write

public void write()
           throws IOException

Specified by:

write in class TTable

Throws:

IOException