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package de.lmu.ifi.dbs.elki.algorithm.outlier.spatial;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.algorithm.AbstractAlgorithm;
import de.lmu.ifi.dbs.elki.algorithm.outlier.OutlierAlgorithm;
import de.lmu.ifi.dbs.elki.algorithm.outlier.spatial.neighborhood.NeighborSetPredicate;
import de.lmu.ifi.dbs.elki.result.outlier.OutlierResult;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.OptionID;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.ObjectParameter;
/**
* Abstract base class for spatial outlier detection methods using a spatial
* neighborhood.
*
* @author Ahmed Hettab
*
* @param <O> Object type
*/
public abstract class AbstractNeighborhoodOutlier<O> extends AbstractAlgorithm<OutlierResult> implements OutlierAlgorithm {
/**
* Parameter to specify the neighborhood predicate to use.
*/
public static final OptionID NEIGHBORHOOD_ID = OptionID.getOrCreateOptionID("neighborhood", "The neighborhood predicate to use in comparison step.");
/**
* Our predicate to obtain the neighbors
*/
private NeighborSetPredicate.Factory<O> npredf = null;
/**
* Constructor
*
* @param npredf Neighborhood predicate
*/
public AbstractNeighborhoodOutlier(NeighborSetPredicate.Factory<O> npredf) {
super();
this.npredf = npredf;
}
/**
* Get the predicate to obtain the neighbors.
*
* @return predicate to obtain the neighbors
*/
protected NeighborSetPredicate.Factory<O> getNeighborSetPredicateFactory() {
return npredf;
}
/**
* Parameterization class.
*
* @author Erich Schubert
*
* @apiviz.exclude
*
* @param <O> Object type
*/
public static abstract class Parameterizer<O> extends AbstractParameterizer {
/**
* The predicate to obtain the neighbors.
*/
protected NeighborSetPredicate.Factory<O> npredf = null;
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
final ObjectParameter<NeighborSetPredicate.Factory<O>> param = new ObjectParameter<NeighborSetPredicate.Factory<O>>(NEIGHBORHOOD_ID, NeighborSetPredicate.Factory.class);
if(config.grab(param)) {
npredf = param.instantiateClass(config);
}
}
}
}
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