}
logger.info("graph nodes: " + this.graphBuilder.getGraph().vertexSet().size());
logger.info("graph links: " + this.graphBuilder.getGraph().edgeSet().size());
logger.info("number of steiner sets: " + candidateSteinerSets.numberOfCandidateSets());
// logger.info("updating weights according to training data ...");
// long start = System.currentTimeMillis();
// this.updateWeights();
// long updateWightsElapsedTimeMillis = System.currentTimeMillis() - start;