PreferentialAttachmentLinkPredictor.cpp

/*
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Copyright (C) 2010 by Ryan N. Lichtenwalter
Email: rlichtenwalter@gmail.com

This file is part of LPmade.
LPmade is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. LPmade 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 General Public License for more details. You should have received a copy of the GNU General Public License along with LPmade. If not, see <http://www.gnu.org/licenses/>.
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*/

#include "PreferentialAttachmentLinkPredictor.h"

PreferentialAttachmentLinkPredictor::PreferentialAttachmentLinkPredictor( const WeightedNetwork& network, const WeightedNetwork& completeNetwork ) : LinkPredictor(network,completeNetwork) {
}

PreferentialAttachmentLinkPredictor::~PreferentialAttachmentLinkPredictor() {
}

double PreferentialAttachmentLinkPredictor::generateScore( unsigned int vertex, unsigned int neighbor ) {
	unsigned int vertexNeighbors = this->network.outNeighbors( vertex ).size();
	unsigned int neighborNeighbors = this->network.inNeighbors( neighbor ).size();

	return (double)(vertexNeighbors*neighborNeighbors);
}