opennlp.maxent
Class RealValueFileEventStream

java.lang.Object
  opennlp.maxent.FileEventStream
      opennlp.maxent.RealValueFileEventStream

All Implemented Interfaces:

EventStream

public class RealValueFileEventStream
extends FileEventStream

Constructor Summary

RealValueFileEventStream(java.io.File file)

RealValueFileEventStream(java.lang.String fileName)

Method Summary

static void	main(java.lang.String[] args) Trains and writes a model based on the events in the specified event file.
Event	nextEvent() Returns the next Event object held in this EventStream.
static float[]	parseContexts(java.lang.String[] contexts) Parses the specified contexts and re-populates context array with features and returns the values for these features.

Methods inherited from class opennlp.maxent.FileEventStream

hasNext, toLine

Methods inherited from class java.lang.Object

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

Constructor Detail

RealValueFileEventStream

public RealValueFileEventStream(java.lang.String fileName)
                         throws java.io.IOException

Throws:

java.io.IOException

RealValueFileEventStream

public RealValueFileEventStream(java.io.File file)
                         throws java.io.IOException

Throws:

java.io.IOException

Method Detail

parseContexts

public static float[] parseContexts(java.lang.String[] contexts)

Parses the specified contexts and re-populates context array with features and returns the values for these features. If all values are unspecified, then null is returned.

Parameters:

contexts - The contexts with real values specified.

Returns:

The value for each context or null if all values are unspecified.

nextEvent

public Event nextEvent()

Description copied from interface: EventStream

Returns the next Event object held in this EventStream.

Specified by:

nextEvent in interface EventStream

Overrides:

nextEvent in class FileEventStream

Returns:

the Event object which is next in this EventStream

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Trains and writes a model based on the events in the specified event file. the name of the model created is based on the event file name.

Parameters:

args - eventfile [iterations cuttoff]

Throws:

java.io.IOException - when the eventfile can not be read or the model file can not be written.