An integrated model for evaluation of big data challenges and analytical methods in recommender systems

Journal of Big Data

Table 2 RS properties and related challenges

RS properties	Volume	Variety	Velocity	Veracity	Variability	Visualization	Value
Adaptivity	**					****	****
Scalability	*****	***	***	***	**
Robustness	***	*	*****	*****	***
User Preference	***	*****		****		***
Diversity	*****	*****	*****	**
Confidence	*		***	*****	****
Coverage	****	*****	***
Trust	***	**		*****	*****
Serendipity	***	***	***	***	***	***	***
Utility	****	****				****
Novelty	****	*****		****	****
Prediction Accuracy	***			*****	****		*****
Privacy	*****	*****	*****	**	****
Risk	*****	*****	*****	*****	*****