Uploaded on 2015-05-27 by JulesUK

Invisible information includes origin of shoppers, how they travelled to the city centre, duration of their visit to the city, relationship between purchased items of any individual, relationship between purchased items and any aspect of grouping (age, sex, residential location etc etc), impact of weather forecast on shopping behaviour. If residential location of shoppers is known then that can be used to design more efficient transport system or better location of retail outlets.][1] [1]: https://edxuploads.s3.amazonaws.com/14327528695167372.jpg