edu.washington.cs.knowitall.extractor.conf

Class ReVerbOpenNlpConfFunction

java.lang.Object

edu.washington.cs.knowitall.extractor.conf.ReVerbOpenNlpConfFunction

All Implemented Interfaces:

ConfidenceFunction

public class ReVerbOpenNlpConfFunction
extends Object
implements ConfidenceFunction

An extraction confidence function that is backed by a logistic regression classifier. This function will assign an extraction a real valued number between 0 and 1 according to the logistic regression model. It represents an extraction using the boolean features defined by the ReVerbFeatures class. See that documentation for details.

Author:

schmmd

Constructor Summary

Constructors

Constructor and Description
ReVerbOpenNlpConfFunction() Constructs a new instance of the confidence function.
ReVerbOpenNlpConfFunction(File modelFile) Load a model from the specified file.
ReVerbOpenNlpConfFunction(String modelResourcePath) Load a model specified as a resource path from the root.
ReVerbOpenNlpConfFunction(URL url) Constructs a new instance of the confidence function from the specified URL.

Method Summary

Methods

Modifier and Type	Method and Description
double	getConf(ChunkedBinaryExtraction extr)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReVerbOpenNlpConfFunction

public ReVerbOpenNlpConfFunction()
                          throws ConfidenceFunctionException,
                                 IOException

Constructs a new instance of the confidence function.

Throws:

ConfidenceFunctionException - if unable to initialize

IOException

ReVerbOpenNlpConfFunction

public ReVerbOpenNlpConfFunction(URL url)
                          throws IOException

Constructs a new instance of the confidence function from the specified URL.

Throws:

ConfidenceFunctionException - if unable to initialize

IOException

ReVerbOpenNlpConfFunction

public ReVerbOpenNlpConfFunction(String modelResourcePath)
                          throws IOException

Load a model specified as a resource path from the root.

Parameters:

modelResourcePath -

Throws:

IOException

ReVerbOpenNlpConfFunction

public ReVerbOpenNlpConfFunction(File modelFile)
                          throws IOException

Load a model from the specified file.

Parameters:

modelFile -

Throws:

IOException

Method Detail

getConf

public double getConf(ChunkedBinaryExtraction extr)
               throws ConfidenceFunctionException

Specified by:

getConf in interface ConfidenceFunction

Parameters:

extr -

Returns:

the probability that the given extraction belongs to the positive class

Throws:

ConfidenceFunctionException - if unable to compute the confidence score