Table 4: Research Question and Motivation.

No Research questions Motivations
RQ1 What are the relevant techniques, methods, and algorithms of deep learning in big data analysis? This question helps us focus on the algorithms used in big data, which also helps with the results section of our paper.
RQ2 What are the most common datasets used for validation? This enables us identify the type of dataset that is being used for deep learning algorithms.
RQ3 What are the trends and future research directions? This helps us identify the most common area, the field of study, the country, and the year in which this has trended.