The document discusses different classification algorithms in the Weka data mining tool for predicting data, including J48, SMO, Naive Bayes, REPTree, and Multilayer Perception. It analyzes their performance on a housing dataset, finding that Multilayer Perception had the highest accuracy at 95.45%. The algorithms are evaluated using metrics like accuracy, precision, and recall calculated from a confusion matrix. Multilayer Perception is identified as the best performing algorithm for this classification task.