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ELKI - Main Module – Open-Source Data-Mining Framework with Index Acceleration
package de.lmu.ifi.dbs.elki.distance.distancefunction;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
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 .
*/
import de.lmu.ifi.dbs.elki.data.NumberVector;
/**
* Base interface for the common case of distance functions defined on numerical
* vectors.
*
* @author Erich Schubert
* @since 0.4.0
*
* @apiviz.landmark
*
* @param vector type, usually NumberVector or a parent type
*/
public interface NumberVectorDistanceFunction extends PrimitiveDistanceFunction {
/**
* Computes the distance between two given vectors according to this distance
* function.
*
* @param o1 first DatabaseObject
* @param o2 second DatabaseObject
* @return the distance between two given vectors according to this distance
* function
*/
double distance(NumberVector o1, NumberVector o2);
}