“…Besides the aesthetic score, each image was annotated by several users with seven objective attributes: composition, light, color, depth of field, object emphasis, content, and scene category. For each user, the database also provided some subjective attributes: age, gender, education experience, artistic experience, photographic experience, and Big-Five personality traits [41]. The education experience was divided into six steps: junior high school, senior high school, technical secondary school, junior college, and university.…”