C++ (Cpp) bDissimilarityの例

コード例 #1

ファイル: Silhouette.cpp プロジェクト: luizbag/evaluate

double Silhouette::calculate(Partition *pAPartition, RelationSDN *pARelation, DataSet *pADataset){

	//Declaration variables used by Silhouette
	double silhouette = 0;
	// # retirar Similarity *pObjSimilarity = pARelation->getSimilarity();

	//cout << pAPartition->getPartitionName() << endl;
	//Walk vector of all clusters
	for (Partition::itClustersOfPartition itClusterOnPartition = pAPartition->begin(); itClusterOnPartition != pAPartition->end(); itClusterOnPartition++){
		double silPartial = 0;
		//Walk each object of cluster
		for(Cluster::itObjectsOfCluster itObjectsOnCluster1 = itClusterOnPartition->begin(); itObjectsOnCluster1 != itClusterOnPartition->end(); itObjectsOnCluster1++){
			double dAxi = a(itObjectsOnCluster1, itClusterOnPartition, pARelation);

			double dBxi, dSxi;
			if (pARelation->getSimilarity()->isSimilarity()){
				dBxi = bSimilarity(itObjectsOnCluster1, itClusterOnPartition, pAPartition, pARelation);
				if (dAxi > dBxi)
					dSxi = 1 - (dBxi / dAxi);
				else if (dAxi == dBxi)
					dSxi = 0;
				else
					dSxi = (dAxi / dBxi) - 1;
			}
			else {
				dBxi = bDissimilarity(itObjectsOnCluster1, itClusterOnPartition, pAPartition, pARelation);
				if (dAxi < dBxi)
					dSxi = 1 - (dAxi / dBxi);
				else if (dAxi == dBxi)
					dSxi = 0;
				else
					dSxi = (dBxi / dAxi) - 1;
			}
			silhouette += dSxi;
			silPartial += dSxi;			
		}
#ifdef IID
		cout << pAPartition->getPartitionName();
		cout << "\tSIL \tcluster " << itClusterOnPartition->getLabel() << " \t(" << itClusterOnPartition->getNumberOfObjects() << " objects):\t" << silPartial/itClusterOnPartition->getNumberOfObjects() << endl;
#endif
	}
	silhouette = silhouette / pAPartition->getNumObjects();
	return silhouette;
}

コード例 #2

ファイル: Silhouette.cpp プロジェクト: lucioseki/clex

double Silhouette::calculate(Partition *pAPartition, RelationSDN *pARelation, DataSet *pADataset){

	//Declaration variables used by Silhouette
	double silhouette = 0;
	// # retirar Similarity *pObjSimilarity = pARelation->getSimilarity();

	//Walk vector of all clusters
	for (Partition::itClustersOfPartition itClusterOnPartition = pAPartition->begin(); itClusterOnPartition != pAPartition->end(); itClusterOnPartition++){

		//Walk each object of cluster
		for(Cluster::itObjectsOfCluster itObjectsOnCluster1 = itClusterOnPartition->begin(); itObjectsOnCluster1 != itClusterOnPartition->end(); itObjectsOnCluster1++){
			double dAxi = a(itObjectsOnCluster1, itClusterOnPartition, pARelation);

			double dBxi, dSxi;
			if (pARelation->getSimilarity()->isSimilarity()){
				dBxi = bSimilarity(itObjectsOnCluster1, itClusterOnPartition, pAPartition, pARelation);
				if (dAxi > dBxi)
					dSxi = 1 - (dBxi / dAxi);
				else if (dAxi == dBxi)
					dSxi = 0;
				else
					dSxi = (dAxi / dBxi) - 1;
			}
			else {
				dBxi = bDissimilarity(itObjectsOnCluster1, itClusterOnPartition, pAPartition, pARelation);
				if (dAxi < dBxi)
					dSxi = 1 - (dAxi / dBxi);
				else if (dAxi == dBxi)
					dSxi = 0;
				else
					dSxi = (dBxi / dAxi) - 1;
			}
			silhouette += dSxi;
		}
	}
	silhouette = silhouette / pAPartition->getNumObjects();
	return silhouette;
}