evaluation for rankings of item recommenders . user-item combinations that appear in both sets are ignored for the test set , and thus in the evaluation . the evaluation measures are listed in the itempredictionmeasures property . additionally , ` num_users ' and ` num_items ' report the number of users that were used to compute the results and the number of items that were taken into account . literature : c. manning , p. raghavan , h. sch&uuml;tze : introduction to information retrieval , cambridge university press , 2008 concode_field_sep PlaceHolder placeHolder concode_field_sep void displayResults concode_elem_sep Collection<String> getMeasures concode_elem_sep String formatResults
ItemRecommendationEvaluationResults function ( IRecommender arg0 , IPosOnlyFeedback arg1 , IPosOnlyFeedback arg2 , Collection < Integer > arg3 , Collection < Integer > arg4 ) { return evaluate ( arg0 , arg1 , arg2 , arg3 , arg4 , null , null ) ; }