user-model的用法和样例：
例句
- Our experience is that, regardless of a lack of research, using provisional personas yields better results than no user models at all.
我们的经验是，尽管缺少了研究过程，采用临时的人物角色仍然会比完全没有用户模型要产生较好的结果。 - By visualizing inner representations of user models, a cognitive ergonomic experiment was carried out to study the relationship between mental models and operation performance.
摘要以用户模型内部表征的视觉化为基础，对用户的心智模型与操作绩效进行了认知人机实验研究。
