public int[] getClosestClusters(){
		int []arr = new int[2];
		arr[0]=0;
		arr[1]=0;
		double largestSimilarity = -100;
		for (int i = 0; i < numberOfDocuments; i++) {
			for (int j = 0; j < numberOfDocuments; j++) {
				if( i>=j || !clustersExists.get(i) || !clustersExists.get(j) ) continue;
				if(similairtyMatrix[i][j] > largestSimilarity){
					arr[0]=i;
					arr[1]=j;
					largestSimilarity = similairtyMatrix[i][j];
				}
			}
		}
		return arr;
	}