Package elki.evaluation.scores.adapter

Class FilteredDistanceResultAdapter

java.lang.Object

elki.evaluation.scores.adapter.DistanceResultAdapter

elki.evaluation.scores.adapter.FilteredDistanceResultAdapter

All Implemented Interfaces:

ScoreEvaluation.Adapter, Iter

public class FilteredDistanceResultAdapter
extends DistanceResultAdapter

This adapter is used to process a list of (double, DBID) objects, but allows skipping one object in the ranking. The list must be sorted appropriately, the score is only used to detect ties.

Since:

0.7.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
(package private) DBIDRef	skip	DBID to skip (usually: query object).

Fields inherited from class elki.evaluation.scores.adapter.DistanceResultAdapter

iter, prevDist

Constructor Summary

Constructors

Constructor	Description
FilteredDistanceResultAdapter(DBIDs set, DoubleDBIDListIter iter, int size, DBIDRef skip)	Constructor.

Method Summary

Modifier and Type	Method	Description
DistanceResultAdapter	advance()	Moves the iterator forward to the next entry.

Methods inherited from class elki.evaluation.scores.adapter.DistanceResultAdapter

numPositive, numTotal, test, tiedToPrevious, valid

Methods inherited from class java.lang.Object

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

Field Detail

skip

DBIDRef skip

DBID to skip (usually: query object).

Constructor Detail

FilteredDistanceResultAdapter

public FilteredDistanceResultAdapter(DBIDs set,
                                     DoubleDBIDListIter iter,
                                     int size,
                                     DBIDRef skip)

Constructor.

Parameters:

set - Set of positive examples

iter - Iterator for distance results

size - Number of IDs

skip - DBID to skip (reference must remain stable!)

Method Detail

advance

public DistanceResultAdapter advance()

Description copied from interface: Iter

Moves the iterator forward to the next entry.

Specified by:

advance in interface Iter

Overrides:

advance in class DistanceResultAdapter

Returns:

The iterator itself.