This work is based on the paper "Location-based and Preference-Aware Recommendation Using Sparse Geo-Social Networking Data" -- Jie Bao et al.
Implemented with toolkit library Surprise (http://surpriselib.com/)
Partly adotped from nhatbui implemented 'location-based recommendation system' -- https://github.com/nhatbui/cf_mab
Yelp Dataset Challenge (Round 11) -- https://www.yelp.co.uk/dataset/challenge Las Vegas and Phoenix based