Foursquare & Flickr activities in 20 cities
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资源简介：
10 millions flickr photos in 10 US & 10 European cities (photo_id, user_id, time_taken, GPS_coordinates, city, if available: associated venue id) 4.5 million checkins (anonymized user_id, venue id, local time, city) 400k venues (venue id, name, GPS_coordinates, city, category id)
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figshare创建时间：
2016-01-20
