edu.cmu.sphinx.frontend.feature
Class LDA

java.lang.Object
  extended by edu.cmu.sphinx.frontend.BaseDataProcessor
      extended by edu.cmu.sphinx.frontend.feature.LDA
All Implemented Interfaces:
DataProcessor, Configurable

public class LDA
extends BaseDataProcessor

Implements an LDA transformation. The dimension of the feature stream is reduced with a matrix transform thus reducing speed and increasing accuracy. This component requires special model trained with LDA/MLLT transform.


Field Summary
static java.lang.String PROP_LOADER
          The name of the transform matrix file
 
Constructor Summary
LDA()
           
 
Method Summary
 Data getData()
          Returns the next Data object being processed by this LDA, or if it is a Signal, it is returned without modification.
 void newProperties(PropertySheet ps)
          This method is called when this configurable component needs to be reconfigured.
 
Methods inherited from class edu.cmu.sphinx.frontend.BaseDataProcessor
getPredecessor, getTimer, initialize, setPredecessor, toString
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

PROP_LOADER

@S4Component(type=Loader.class)
public static final java.lang.String PROP_LOADER
The name of the transform matrix file

See Also:
Constant Field Values
Constructor Detail

LDA

public LDA()
Method Detail

newProperties

public void newProperties(PropertySheet ps)
                   throws PropertyException
Description copied from interface: Configurable
This method is called when this configurable component needs to be reconfigured.

Specified by:
newProperties in interface Configurable
Overrides:
newProperties in class BaseDataProcessor
Parameters:
ps - a property sheet holding the new data
Throws:
PropertyException - if there is a problem with the properties.

getData

public Data getData()
             throws DataProcessingException
Returns the next Data object being processed by this LDA, or if it is a Signal, it is returned without modification.

Specified by:
getData in interface DataProcessor
Specified by:
getData in class BaseDataProcessor
Returns:
the next available Data object, returns null if no Data object is available
Throws:
DataProcessingException - if there is a processing error
See Also:
Data