Forwarding to OSM-talk.
Jean-Guilhem
-------- Message original --------
Sujet : [CrisisMappers] Fwd: Some Twitter Search data
Date : Mon, 25 Jan 2010 23:25:03 -0800
De : M. Edward (Ed) Borasky <zzn...@gmail.com>
Répondre à : crisismapp...@googlegroups.com
Pour : crisismapp...@googlegroups.com, personfin...@googlegroups.com
Références : <af0420cd1001252312y72427a57u30ddd989e192b...@mail.gmail.com>
---------- Forwarded message ----------
From: *M. Edward (Ed) Borasky* <zzn...@gmail.com <mailto:zzn...@gmail.com>>
Date: Mon, Jan 25, 2010 at 11:12 PM
Subject: Some Twitter Search data
To: crisiscamp...@googlegroups.com
<mailto:crisiscamp...@googlegroups.com>, crisisfil...@googlegroups.com
<mailto:crisisfil...@googlegroups.com>, swiftri...@googlegroups.com
<mailto:swiftri...@googlegroups.com>
I just ran a backsearch using Twitter Search with a geo focus of a
circle of radius 210 km around the epicenter of the quake. This gets the
westernmost tip of Haiti, but includes some of the Dominican Republic.
Eventually I'll be coding the Streaming API version of this, but there
aren't enough geotagged tweets yet to make it worth doing.
What did I get? 7500 tweets total - the earliest was from "Thu, 21 Jan
2010 20:46:12 +0000". I don't know if that's because Twitter wasn't
functional before that or for some other reason. Twitter Search normally
goes back at least a week, and it can go back longer. Of those 7500
tweets, only 93 were geotagged. I've left the data in JSON format, UNIX
line endings. I have a script that converts them to CSV, but it needs to
be enhanced to include the geotagging data when it exists. I'm in no
hurry to do that, since my understanding is that the various projects
are directly integrating Twitter data. The file is
http://github.com/znmeb/Twitter-API-Perl-Utilities/blob/master/haiti_quake_backsearch_collected_data.json
It's about 3.7 megabytes.
I also got a list of tweet counts for all the users represented in the
search result. If a user is in this list, they either sent a geotagged
tweet from inside the search circle, or Twitter thinks their profile
location is inside the search circle. That file is
http://github.com/znmeb/Twitter-API-Perl-Utilities/blob/master/haiti_quake_backsearch_tweet_counts.csv
There are 579 users in that list. That's not a horrendous number to
expect human curation on at this stage of the game, and if anyone so
desires, I can pull their profiles into a spreadsheet and even download
their most recent 3200 tweets. ;-)
Please feel free to forward this to anyone you thing would be
interested. I'm going to see if anyone on the main "CrisisMappers"
mailing list has an interest.
--
M. Edward (Ed) Borasky
http://borasky-research.net
"I've always regarded nature as the clothing of God." ~Alan Hovhaness
--
M. Edward (Ed) Borasky
http://borasky-research.net
"I've always regarded nature as the clothing of God." ~Alan Hovhaness
--
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