no.sesat.search.result.handler
Class SpellingSuggestionChooserResultHandlerConfig

java.lang.Object
  no.sesat.search.result.handler.AbstractResultHandlerConfig
      no.sesat.search.result.handler.SpellingSuggestionChooserResultHandlerConfig

All Implemented Interfaces:

Serializable, ResultHandlerConfig

@AbstractResultHandlerConfig.Controller(value="SpellingSuggestionChooser")
public final class SpellingSuggestionChooserResultHandlerConfig
extends AbstractResultHandlerConfig

Spelling suggestions are chosen in the following way:

• Discard all suggestions with score less than minimumScore
• For each term, remove suggestions with lowest score so that the number of suggestions is less than maxSuggestions. If the query is long the limit is maxSuggestionsForLongQueries
• Remove all suggestions whose score differs more than maxDistance from the suggestion with the highest score
• If the query is long and if two terms have suggestions, remove all suggestions unless the best suggestion is much better than the second best

A new query is then created using the chosen suggestions.

Version:

$Id: SpellingSuggestionChooserResultHandlerConfig.java 7225 2009-04-09 00:32:20Z ssmiweve $

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class no.sesat.search.result.handler.AbstractResultHandlerConfig

AbstractResultHandlerConfig.Controller

Constructor Summary

SpellingSuggestionChooserResultHandlerConfig()

Method Summary

int	getLongQuery()
int	getLongQueryMaxSuggestions()
int	getMaxDistance()
int	getMaxSuggestions()
int	getMinScore()
int	getMuchBetter()
int	getVeryLongQuery()
AbstractResultHandlerConfig	readResultHandler(Element element)
void	setLongQuery(int longQuery) Sets the number of terms query needs to be considered as long.
void	setLongQueryMaxSuggestions(int maxSuggestionsForLongQueries) Sets the number of suggestions to choose for very long queries.
void	setMaxDistance(int maxDistance) Sets the maximum difference in score a suggestion can have from the highest the suggestion with the highest score without being discarded.
void	setMaxSuggestions(int maxSuggestions) Sets the maximum number of suggestions to choose.
void	setMinScore(int minumScore) Sets the minimum score a suggestions needs to have to be considered.
void	setMuchBetter(int muchBetter) Sets the score difference needed for a suggestion to be rated as much better.
void	setVeryLongQuery(int veryLongQuery) Sets the number of terms a query needs to be considered as long.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpellingSuggestionChooserResultHandlerConfig

public SpellingSuggestionChooserResultHandlerConfig()

Method Detail

setMinScore

public void setMinScore(int minumScore)

Sets the minimum score a suggestions needs to have to be considered.

Parameters:

minumScore - New minimum score.

getMinScore

public int getMinScore()

Returns:

setMaxSuggestions

public void setMaxSuggestions(int maxSuggestions)

Sets the maximum number of suggestions to choose.

Parameters:

maxSuggestions - New max number of suggestions.

getMaxSuggestions

public int getMaxSuggestions()

Returns:

setMaxDistance

public void setMaxDistance(int maxDistance)

Sets the maximum difference in score a suggestion can have from the highest the suggestion with the highest score without being discarded.

Parameters:

maxDistance - New max distance.

getMaxDistance

public int getMaxDistance()

Returns:

setMuchBetter

public void setMuchBetter(int muchBetter)

Sets the score difference needed for a suggestion to be rated as much better.

Parameters:

muchBetter - New difference.

getMuchBetter

public int getMuchBetter()

Returns:

setLongQuery

public void setLongQuery(int longQuery)

Sets the number of terms query needs to be considered as long.

Parameters:

longQuery - The new number of terms.

getLongQuery

public int getLongQuery()

Returns:

setVeryLongQuery

public void setVeryLongQuery(int veryLongQuery)

Sets the number of terms a query needs to be considered as long.

Parameters:

veryLongQuery - The new number of terms.

getVeryLongQuery

public int getVeryLongQuery()

Returns:

setLongQueryMaxSuggestions

public void setLongQueryMaxSuggestions(int maxSuggestionsForLongQueries)

Sets the number of suggestions to choose for very long queries.

Parameters:

maxSuggestionsForLongQueries - The new number of suggestions.

getLongQueryMaxSuggestions

public int getLongQueryMaxSuggestions()

Returns:

readResultHandler

public AbstractResultHandlerConfig readResultHandler(Element element)

Specified by:

readResultHandler in interface ResultHandlerConfig

Overrides:

readResultHandler in class AbstractResultHandlerConfig

Returns: