Package com.yahoo.searchlib.ranking.features

Class ElementCompleteness

java.lang.Object

com.yahoo.searchlib.ranking.features.ElementCompleteness

public class ElementCompleteness
extends Object

Calculates the elementCompleteness features

Author:

bratseth

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ElementCompleteness.Item

Constructor Summary

Constructors

Constructor	Description
ElementCompleteness()

Method Summary

Modifier and Type	Method	Description
static Features	compute(Map<String,Integer> queryTerms, ElementCompleteness.Item[] field)	Computes the following elementCompleteness features: completeness fieldCompleteness queryCompleteness elementWeight

Methods inherited from class java.lang.Object

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

Constructor Details

ElementCompleteness

public ElementCompleteness()

Method Details

compute

public static Features compute(Map<String,Integer> queryTerms,
 ElementCompleteness.Item[] field)

Computes the following elementCompleteness features:

• completeness
• fieldCompleteness
• queryCompleteness
• elementWeight

Parameters:

queryTerms - the query terms with associated weights to compute over

field - a set of weighted field values, where each is taken to be a space-separated string of tokens

Returns:

a features object containing the values listed above