Table 1 Foursquare data set extensive characteristics. The figures here are aggregated for all layers and comprise all 24 months. The linear size L is here estimated as the square root of the total area covered by the data after the aggregation into squares of 500 m × 500 m. Please note that the value of population for the city of Paris here corresponds to the Grand Paris Metropolitan areas that is the territory roughly covered by the data. Other population correspond to the municipality area (or the national area for the case of Singapore)

From: Unraveling the hidden organisation of urban systems and their mobility flows