workspace_path_ effort_experiment hand_labeled_percents_ 8 0.01 0.02 0.03 0.1 0.3 0.6 0.8 1.0 max_num_epochs_ 99 confidence_thresh_ 5 min_objective_ 0.02 background_paths_ 2 background/path/one background/path/two hand_labeled_paths_ 2 hand_labeled/path/one hand_labeled/path/two unlabeled_paths_ 2 unlabeled/path/one unlabeled/path/two