TargetRememberLastLabel (Mallet 2 API)

java.lang.Object
- cc.mallet.pipe.Pipe
- - cc.mallet.pipe.TargetRememberLastLabel

All Implemented Interfaces:

AlphabetCarrying, java.io.Serializable
```
public class TargetRememberLastLabel
extends Pipe
```
For each position in the target, remember the last non-background label. Assumes that the target of piped instances is a LabelSequence. Replaces the target with a LabelsSequence where row 0 is the original labels, and row 1 is the last label.

Version:

$Id: TargetRememberLastLabel.java,v 1.1 2007/10/22 21:37:39 mccallum Exp $

Author:

Charles Sutton

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`TargetRememberLastLabel()`
`TargetRememberLastLabel(java.lang.String backgroundLabel, boolean offset)`	offset determines how the memory and base sequences will be aligned.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

Instance pipe(Instance carrier)
Really this should be 'protected', but isn't for historical reasons.
- Methods inherited from class cc.mallet.pipe.Pipe
  alphabetsMatch, getAlphabet, getAlphabets, getDataAlphabet, getInstanceId, getTargetAlphabet, instanceFrom, instancesFrom, instancesFrom, isDataAlphabetSet, isTargetProcessing, newIteratorFrom, preceedingPipeDataAlphabetNotification, preceedingPipeTargetAlphabetNotification, precondition, readResolve, setDataAlphabet, setOrCheckDataAlphabet, setOrCheckTargetAlphabet, setTargetAlphabet, setTargetProcessing
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TargetRememberLastLabel
```
public TargetRememberLastLabel()
```
  - TargetRememberLastLabel
```
public TargetRememberLastLabel(java.lang.String backgroundLabel,
                               boolean offset)
```
    offset determines how the memory and base sequences will be aligned. If true, they'll be aligned like this:
    MEM O O S S S E L BASE O S S O E L O
    otherwise, they'll be aligned like this:
    MEM O S S S E E L BASE O S S O E L O
- Method Detail
  - pipe
```
public Instance pipe(Instance carrier)
```
    Description copied from class: Pipe
    
    Really this should be 'protected', but isn't for historical reasons.
    
    Overrides:
    
    pipe in class Pipe