结合兴趣点类别周期属性和用户短期偏好特征的推荐模型
桑春艳, 易星宇, 廖世根, 文俊浩

A recommendation model combining point of interest category periodic attributes and user short⁃term preference features
Chunyan Sang, Xingyu Yi, Shigen Liao, Junhao Wen
图9 用户签到的周期性和时空间隔规律性示例
Fig.9 Example of periodicity and spatiotemporal interval regularity of user check?in