info.ephyra.answerselection.filters
Class AnswerProjectionFilter

java.lang.Object
  info.ephyra.answerselection.filters.Filter
      info.ephyra.answerselection.filters.AnswerProjectionFilter

public class AnswerProjectionFilter
extends Filter

The AnswerProjectionFilter projects answers from the Web onto a corpus.

This class extends the class Filter.

Version:

2007-07-24

Author:

Nico Schlaefer

Field Summary

private static java.lang.String[]	EXTRACTION_TECHNIQUES Answer extraction techniques in the order of their preference for answer projection.
private Result[]	resultsCorp Results retrieved from the corpus.

Constructor Summary

AnswerProjectionFilter(Result[] resultsCorp)
Creates the filter and sets the results retrieved from the corpus.

Method Summary

Result[]	apply(Result[] results) Projects Web answers onto the corpus.
private boolean	hasHigherPreference(Result result1, Result result2) Checks if the answer extraction techniques used to extract the first result have a higher preference for answer projection than the techniques used for the second result.

Methods inherited from class info.ephyra.answerselection.filters.Filter

apply

Methods inherited from class java.lang.Object

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

Field Detail

EXTRACTION_TECHNIQUES

private static final java.lang.String[] EXTRACTION_TECHNIQUES

Answer extraction techniques in the order of their preference for answer projection.

resultsCorp

private Result[] resultsCorp

Results retrieved from the corpus.

Constructor Detail

AnswerProjectionFilter

public AnswerProjectionFilter(Result[] resultsCorp)

Creates the filter and sets the results retrieved from the corpus.

Parameters:

resultsCorp - results retrieved from the corpus

Method Detail

hasHigherPreference

private boolean hasHigherPreference(Result result1,
                                    Result result2)

Checks if the answer extraction techniques used to extract the first result have a higher preference for answer projection than the techniques used for the second result.

Parameters:

result1 - first result

result2 - second result

Returns:

true iff the techniques used for the first result have a higher preference

apply

public Result[] apply(Result[] results)

Projects Web answers onto the corpus.

Overrides:

apply in class Filter

Parameters:

results - array of Result objects from the Web

Returns:

array of Result objects from the corpus