Understanding users' interactions with highly subjective content---like artistic images---is challenging due to the complex semantics that guide our preferences. On the one hand one has to overcome `standard' recommender systems challenges, such as dealing with large, sparse, and long-tailed datasets. On the other, several new challenges present themselves, such as the need to model content in terms of its visual appearance, or even social dynamics, such as a preference toward a particular artist that is independent of the art they create. In this paper we build large-scale recommender systems to model the dynamics of a vibrant digital art community, Behance, consisting of tens of millions of interactions (clicks and `appreciates') of users toward digital art. Methodologically, our main contributions are to model (a) rich content, especially in terms of its visual appearance; (b) temporal dynamics, in terms of how users prefer `visually consistent' content within and across sessions; and (c) social dynamics, in terms of how users exhibit preferences both towards certain art styles, as well as the artists themselves.
翻译:一方面,必须克服“标准”建议系统的挑战,如处理大型、稀疏和长尾数据集等。另一方面,出现了一些新的挑战,例如需要从视觉外观或甚至社会动态的角度对内容进行建模,例如需要偏爱与他们所创造的艺术独立的某个特定艺术家;在本文中,我们建立了大型推荐系统,以模拟充满活力的数字艺术界——Behance的动态。Behance是由数以百万计的用户对数字艺术的互动(点击和“欣赏”)组成。在方法上,我们的主要贡献是建模(a)内容丰富,特别是其视觉外观;(b)时间动态,即用户如何更喜欢“视觉上一致”的内容;以及(c)社会动态,即用户如何对某些艺术风格以及艺术家本身表现出偏好。