Fig. 7
From: Beyond the Big Five personality traits for music recommendation systems
The recommendation quality when gradually adding consecutive the best pairs to the previous ones. They were selected in two ways: only the best results belonging to the low-level personality facets (blue colors) and only the best results belonging to the Big Five personality domains (red color). This gradual improvement method revealed the moment (the subset of personality domains and audio features), marked by dots on each graph, after which the errors started to grow