How personality influences users' needs for recommendation diversity?

The existing approaches for enhancing diversity in online recommendations neglect the user's spontaneous needs that might be potentially influenced by her/his personality. In this paper, we report our ongoing research on exploring the actual impact of personality values on users' needs for recommendation diversity. The results from a preliminary user survey are reported, that show the significantly causal relationship from personality factors (such as conscientiousness) to the users' diversity preference (not only over the item's individual attributes but also on all attributes when they are combined). We further present our plan for the follow-up work and discuss its practical implications.