Hi,
I have a question regarding the data collection process for TUD in the context of recreation and tourism. Is there any kind of filtering applied to the database, or are all Twitter posts included regardless of their content?
Additionally, concerning the use of Flickr data for PUD, is the geolocation based on where the photograph was taken or where it was uploaded?
Thank you in advance for your clarification.
Hi @alcarilu ,
There is no filtering applied to the flickr or twitter data. Twitter posts came from their official API, which was supposedly a random sample of some small percentage of all posts.
Geolocation is typically based on the location of the device when the photo was taken (or when the post to twitter was made). Technically it is possible that a Flickr user chose their own geolocation manually if their camera did not have a GPS. In which case, it was entirely up to the photographer to choose the location.