iglu.ir
Class PRResultUtils

java.lang.Object
  |
  +--iglu.ir.PRResultUtils

public class PRResultUtils

extends java.lang.Object

Utilities for working with PRResult objects. Works in a manner consistent with _Modern_Information_Retrieval_ by Baeza-Yates and Ribeiro-Neto, chapter 3.

Author:

Travis Bauer

See Also:

PRResult

Field Summary

static double[]

precList The default number of documents to display

Constructor Summary

private

PRResultUtils()

Method Summary

static double[]	dpAverages(PRResult[] rsts) Return the average precisions for the number of document values listed in precList.
static PRPair	lastPRPair(PRResult rst) Returns the last PRPair in the resultset
static double[]	rpAverages(PRResult[] rsts) Calculates interpolated precision results for know recall values.
static java.lang.String	summary(PRResult[] rsts) Returns a string containing information about result sets

Methods inherited from class java.lang.Object

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

Field Detail

precList

public static final double[] precList

The default number of documents to display

Constructor Detail

PRResultUtils

private PRResultUtils()

Method Detail

rpAverages

public static double[] rpAverages(PRResult[] rsts)

Calculates interpolated precision results for know recall values.

dpAverages

public static double[] dpAverages(PRResult[] rsts)

Return the average precisions for the number of document values listed in precList.

summary

public static java.lang.String summary(PRResult[] rsts)

Returns a string containing information about result sets

lastPRPair

public static PRPair lastPRPair(PRResult rst)

Returns the last PRPair in the resultset