org.terrier.matching

Class MatchingQueryTerms.QueryTermProperties

java.lang.Object

org.terrier.matching.MatchingQueryTerms.QueryTermProperties

All Implemented Interfaces:

Serializable, Cloneable

Enclosing class:

MatchingQueryTerms

public static class MatchingQueryTerms.QueryTermProperties
extends Object
implements Serializable, Cloneable

The weight and the modifiers associated with a query term.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
Boolean	required
EntryStatistics	stats Info about the query term.
Set<String>	tags
List<WeightingModel>	termModels The term score modifiers associated with a particular query term.
double	weight The weight of a query term.

Constructor Summary

Constructors

Constructor and Description
QueryTermProperties(int _index)
QueryTermProperties(int _index, double w) A constructor for setting the weight of a term.
QueryTermProperties(int _index, double w, EntryStatistics _stats) A constructor for setting the weight of a term and its term code.
QueryTermProperties(int _index, double w, WeightingModel model) A constructor for setting the weight and a term score modifier for a term.
QueryTermProperties(int _index, double w, WeightingModel model, EntryStatistics _stats) A constructor for setting a weight, a term score modifier and the term code for a query term.
QueryTermProperties(int _index, EntryStatistics _stats) An constructor for setting the term code of a query term.
QueryTermProperties(int _index, WeightingModel model) A constructor for setting a term score modifier for a term.
QueryTermProperties(int _index, WeightingModel model, EntryStatistics _stats) A constructor for setting a term score modifier for a term and its term code.

Method Summary

Modifier and Type	Method and Description
MatchingQueryTerms.QueryTermProperties	clone()
Boolean	getRequired()
Set<String>	getTags()
double	getWeight()
int	hashCode()
void	setRequired(boolean b)
void	setTag(String tag)
void	setWeight(double weight)
String	toString()

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

required

public Boolean required

weight

public double weight

The weight of a query term. This is usually how many times the term occurred in the query, but sometime may be altered if a weight has been specified on the query term: eg QueryExpansion will do this, as will manually specifying a weight on the unparsed query (example term1 term2^3).

stats

public EntryStatistics stats

Info about the query term.

termModels

public List<WeightingModel> termModels

The term score modifiers associated with a particular query term.

tags

public Set<String> tags

Constructor Detail

QueryTermProperties

public QueryTermProperties(int _index)

QueryTermProperties

public QueryTermProperties(int _index,
                           EntryStatistics _stats)

An constructor for setting the term code of a query term.

Parameters:

_stats - the statistics of the query term

QueryTermProperties

public QueryTermProperties(int _index,
                           double w)

A constructor for setting the weight of a term.

Parameters:

w - double the weight of a query term.

QueryTermProperties

public QueryTermProperties(int _index,
                           WeightingModel model)

A constructor for setting a term score modifier for a term.

Parameters:

model - WeightingModel modifier associated with a query term.

QueryTermProperties

public QueryTermProperties(int _index,
                           double w,
                           WeightingModel model)

A constructor for setting the weight and a term score modifier for a term.

Parameters:

w - double the weight of a query term.

model - WeightingModel modifier associated with a query term.

QueryTermProperties

public QueryTermProperties(int _index,
                           double w,
                           EntryStatistics _stats)

A constructor for setting the weight of a term and its term code.

Parameters:

w - double the weight of a query term.

_stats - statistics of the query term

QueryTermProperties

public QueryTermProperties(int _index,
                           WeightingModel model,
                           EntryStatistics _stats)

A constructor for setting a term score modifier for a term and its term code.

Parameters:

model - WeightingModel modifier associated with a query term.

_stats - statistics of the query term

QueryTermProperties

public QueryTermProperties(int _index,
                           double w,
                           WeightingModel model,
                           EntryStatistics _stats)

A constructor for setting a weight, a term score modifier and the term code for a query term.

Parameters:

w - double the weight of a query term.

model - WeightingModel modifier associated with a query term.

_stats - statistics of the query term

Method Detail

getWeight

public double getWeight()

getTags

public Set<String> getTags()

getRequired

public Boolean getRequired()

setWeight

public void setWeight(double weight)

setTag

public void setTag(String tag)

setRequired

public void setRequired(boolean b)

clone

public MatchingQueryTerms.QueryTermProperties clone()

Overrides:

clone in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object