Research Article
A Framework for Spatial Interaction Analysis Based on Large-Scale Mobile Phone Data
Algorithm 2
Transformation of geographic coordinates.
(1) Input Mobile subscriber: | (2) Set of logs in chronological sort: | (3) | (4) The approximate size of cells: m | (5) The boundaries of Shanghai administrative jurisdiction: | (6) , | (7) Output The transformed mobile phone data of mobile subscriber : | (8) | (9) Procedure Raster | (10) | (11) /* Determine the fix interval of longitudes and latitudes, where is the average | (12) radius of the earth. */ | (13) , | (14) /* Transform each BTS into the equivalent BTS located at the cell’s centroid. */ | (15) | (16) while do | (17) | (18) | (19) | (20) |
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