[OSM-talk] [Fwd: [Fwd: [CrisisMappers] Fwd: Some Twitter Search data]]

[Jean-Guilhem Cailton]

If anybody could map the tweets, I bet it would give an indication of 
actual post-earthquake cell coverage, wouldn't it ?
(Which is a big request, of course.)

Thanks a thousand, M. Borasky !

Jean-Guilhem


-------- Message original --------
Sujet : 	[OSM-talk] [Fwd: [CrisisMappers] Fwd: Some Twitter Search data]
Date : 	Tue, 26 Jan 2010 08:59:29 +0100
De : 	Jean-Guilhem Cailton <jgc at arkemie.com>
Pour : 	OSM-talk <talk at openstreetmap.org>
Copie à : 	M. Edward (Ed) Borasky <zznmeb at gmail.com>



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 <zznmeb at gmail.com>
Répondre à : 	crisismappers at googlegroups.com
Pour : 	crisismappers at googlegroups.com, personfinder at googlegroups.com
Références : 	<af0420cd1001252312y72427a57u30ddd989e192b91a at mail.gmail.com>





---------- Forwarded message ----------
From: *M. Edward (Ed) Borasky* <zznmeb at gmail.com <mailto:zznmeb at gmail.com>>
Date: Mon, Jan 25, 2010 at 11:12 PM
Subject: Some Twitter Search data
To: crisiscamppdx at googlegroups.com 
<mailto:crisiscamppdx at googlegroups.com>, crisisfilter at googlegroups.com 
<mailto:crisisfilter at googlegroups.com>, swiftriver at googlegroups.com 
<mailto:swiftriver at 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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