Category-aware Next Point-of-Interest Recommendation via Listwise Bayesian Personalized Ranking

Category-aware Next Point-of-Interest Recommendation via Listwise Bayesian Personalized Ranking

Jing He, Xin Li, Lejian Liao

Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence
Main track. Pages 1837-1843. https://doi.org/10.24963/ijcai.2017/255

Next Point-of-interest (POI) recommendation has become an important task for location-based social networks (LBSNs). However, previous efforts suffer from the high computational complexity and the transition pattern between POIs has not been well studied. In this paper, we propose a two-fold approach for next POI recommendation. First, the preferred next category is predicted by using a third-rank tensor optimized by a Listwise Bayesian Personalized Ranking (LBPR) approach. Specifically we introduce two functions, namely Plackett-Luce model and cross entropy, to generate the likelihood of ranking list for posterior computation. Then POI candidates filtered by the predicated category are ranked based on the spatial influence and category ranking influence. Extensive experiments on two real-world datasets demonstrate the significant improvements of our methods over several state-of-the-art methods.
Keywords:
Machine Learning: Learning Preferences or Rankings
Machine Learning: Machine Learning
Multidisciplinary Topics and Applications: AI and Social Sciences