“…However, with the availability of parallel computing environments makes hyperparameter tuning feasible and should not be only considered as future work by researchers. Mentioned tuning with minimal reporting 4 [39], [40] [41], [42] Mentioned tuning with reproducible reporting 6 [43], [41], [44]- [47] Although it is not exhaustive, our short literature survey reflected that most of the work done in RS using DL does not discuss the importance of hyperparameter tuning. Since the cost of hyperparameter tuning is high due to the complexity of the DL model and the size of training data, it is essential to discuss the cost of tuning and also methods and means, such as parallel computing, that can be utilized for hyperparameter tuning.…”