python manage.py fetch_poi_images --compute-features --limit 0 --only-new --exclude-wikimedia
python manage.py compute_similarities --method image_same_city --clear
python manage.py compute_similarities --method image_other_city --clear

python manage.py fetch_poi_images --city berlin --compute-features --limit 0 --only-new --exclude-wikimedia
python manage.py fetch_poi_images --city new_york --compute-features --limit 0 --only-new --exclude-wikimedia
python manage.py fetch_poi_images --city london --compute-features --limit 0 --only-new --exclude-wikimedia
python manage.py fetch_poi_images --city paris --compute-features --limit 0 --only-new --exclude-wikimedia