FourSquare dataset descroptions: 1. catergories.txt is a json file contains the tree information of all the categories in Foursquare. 2. Venues fold contains the Venues visited by the users in LA and NYC with the following fields: Venue id | venue name| latitude| longitude| address|city|state| checkin #| checked user#| current user#| todo# |category # | category id 0| category id 1| ? 3. Users fold contains the user profiles of users who visited LA and NYC from foursquare, with the following fields: User id| first name| lastname| profile pic| gender| home city| 4. Tips fold contains the series of tips from single user, with the following format: User id| tip| tip|? For each tip has the following format: Venue id | 0 | null| text| created time |todo#| done #| category # | category id 0| category id 1| ? 5. Friendship fold constains the user friendships with the following format: userid | userid. P.S Please remember to cite the following papers, if you use our dataset: Jie Bao, Yu Zheng and Mohamed F. Mokbel. "Location-based and Preference-Aware Recommendation Using Sparse Geo-Social Networking Data". In ACM SIGSPATIAL (GIS 2012), Redondo Beach, CA, US, 2012 Thanks,