Classification Datasets used as gold standard Dataset Semantic of classes Classes Size Source Cities Living style 3 212 Mercer AAUP Salary of professors 3 960 JSE Forbes Agency income 3 1,585 Forbes Albums Album popularity 2 1,600 Metacritic Movies Movie popularity 2 2,000 Metacritic Model and its configuration Model Configuration Naive Bayes - C 4.5 decision tree - k-NN k=3 Support Vector Machine C = {10^{-3}, 10^{-2}, 0.1, 1, 10, 10^2, 10^3} Missing entities are simply ignored. The results are calculated using stratified 10-fold cross-validation. Output of the evaluation Metric Range Optimum Accuracy [0,1] Highest