3. “The problems they have with labeling and handling contested
categories is a problem with all categorization systems since the
world began. Metadata is worldview; sorting is a political act. [...]
would love to avoid those problems if they could – who needs
the tsouris? — but they canʼt. No one gets cataloging “right” in
any perfect sense, and no algorithm returns the “correct”
results. We know that, because we see it every day, in every
large-scale system we use. No set of labels or algorithms solves
anything once and for all; any working system for showing data
to the user is a bag of optimizations and tradeoffs that are a lot
worse than some Platonic ideal, but a lot better than nothing.”
Clay Shirky
13. continent
country
region
county maybe
“metropolitan area”
locality and airports (and “hollywood”)
neighbourhood
14. North America 24865672
United States 23424977
California 2347563
San Francisco 12587707
“San Francisco Bay Area” “we suck”
San Francisco 2487956
The Mission 2452334
21. $> clustr -h
clustr 0.21 - construct polygons from tagged points
written by Schuyler Erle
(c) 2007-2009 Yahoo!, Inc.
code.flickr.com
Usage: clustr [-a <n>] [-p] [-v] <input> <output>
-h, -? this help message
-v be verbose (default: off)
-a <n> set alpha value (default: use quot;optimalquot; value)
-p output points to shapefile, instead of polygons
