Mapping Twitter in African cities
Mark Graham on 13 Feb 2013 13:27PM
Building on the last post (a map of Tweets in Nairobi), I'd like to show a few more visualisations of information densities in other African cities.Below, you can find maps of all geocoded tweets published in November 2012 in Accra, Cairo, Dar es Salaam, [...]
Mapping Twitter in Francophone Africa
Mark Graham on 15 Feb 2013 14:15PM
There was a lot of interest in the series of eleven maps of tweets in African cities that I posted yesterday. So, here are ten more from Francophone Africa: Algiers, Bamako, Abidjan, Nouakchott, Kinshasa, Ougadougou, Libreville, Dakar, Conkary, and [...]
Mapping tweets about the Kenyan presidential debate
Mark Graham on 12 Feb 2013 16:47PM
Yesterday saw the first ever televised presidential debate in Kenya. The debate was not only carried across a range of tv and radio stations, but was also live-streamed on YouTube and was actively discussed on Twitter under the #KeDebate13 and #KeDebate [...]
Where do tweets in Nairobi come from?
Mark Graham on 12 Feb 2013 21:30PM
Earlier I posted a map of tweets about the Kenyan presidential debate that showed a distinct geography of information about the event. Doing so made me wonder about the broader patterns of information production in Nairobi through Twitter.So (with the [...]
Situating Neogeography: Special Issue of Environment and Planning A
Mark Graham on 28 Jan 2013 20:02PM
The special issue of Environment and Planning A on neogeography that I edited with Matthew Wilson is now out an available to download. It will undoubtedly be a useful collection for anyone interested in thinking about the coming-togethers of information, [...]
big broad data: thirty million tweets visualised
Mark Graham on 7 Nov 2012 10:32AM
In order to create our recent election tweets map, we downloaded all geocoded tweets published from the United States in October: about thirty million messages!In addition to extracting content containing election-related terms, I also wanted to see what [...]
Obama wins the election! (on Twitter)
Mark Graham on 5 Nov 2012 19:48PM
Can Twitter predict the outcome of the US election tomorrow? If our results are anything to go by then Barack Obama will be reelected. The data presented below are the result of some research that Adham Tamer, Ning Wang, Scott Hale and I (Mark [...]
data shadows of a hurricane
Mark Graham on 31 Oct 2012 07:02AM
My colleagues Adham Tamer, Ning Wang, Scott Hale and I have been collecting tweets containing the terms "flood" and "flooding" in order to examine how twitter usage in the context of Hurricane Sandy might reflect lived experiences. In other words, we are [...]
America's most influential cities: the urban geography of klout scores
Mark Graham on 9 Oct 2012 14:37PM
My colleague Devin Gaffney and I decided to dig deeper into the geography of Klout and examine the geography of some of the largest cities in the US. We found some very interesting patterns and large differences in the average influence of users in [...]
the geography of klout scores - or why are the French so influential?
Mark Graham on 17 Jul 2012 09:19AM
Most Twitter users have heard of Klout scores. These scores which fall between 0 and 100 supposedly measure influence (higher scores indicating that a person is more influential). This isn't to say that such quantification of a person's influence based on [...]
Where Do the World's Tweets Come From?
Mark Graham on 3 Jul 2012 10:36AM
The Atlantic has just published a piece 'Where Do the World's Tweets Come From?' featuring a graphic that I made with Monica Stephens.You can read more about our methods and interpretation at the OII's Vis Site, and have a look at some of the earlier [...]
Mapping #kony2012 on Twitter (part 2)
Mark Graham on 30 Apr 2012 14:00PM
Following on from my last post about mapping #kony2012 on Twitter, I also wanted to offer up a map that shows the proportion of tweets from each country that made reference to the viral video or the LRA leader (or both). We've already seen that most [...]
Where do tweets come from? (part 2)
Mark Graham on 16 Apr 2012 15:15PM
I realise that the graph in my last post about the geography of tweets is hard to read, so am uploading the chart below so that you can get a better sense of where content in Twitter comes from. It shows us that over half of the world's content [...]
Where do tweets come from?
Mark Graham on 13 Apr 2012 12:11PM
A couple of weeks ago, I posted a map of all georeferenced tweets mentioning the #kony video. The patterns were interesting, but not entirely unexpected.A more interesting question though, would be to see what percentage of all tweets from each country [...]
Mapping #kony2012 on Twitter
Mark Graham on 31 Mar 2012 12:58PM
A LOT has been said about the recent Kony 2012 video. There have been critiques, critiques of critiques, critiques of critiques of critiques.Interestingly, there were many claims that video was one of the most successful viral campaigns in the history of [...]
A critique of the Economist's "#AfricaTweets" story
Mark Graham on 6 Feb 2012 22:08PM
The latest edition of the Economist contains an article titled “#AfricaTweets.” The piece contains a striking map that visualizes the “number of tweets” per country in the “top 20 African countries.”The only problem is that the article doesn’t do what it [...]
Hiring part-time research assistant to collect and analyse Twitter data
Mark Graham on 9 Sep 2011 09:38AM
Applications are invited from for a part-time Research Assistant associated with the newly-funded project supported by a John Fell Fund grant: Using the Social Web to Map and Measure Online Cultural Diffusion. Using data collected from Twitter, the [...]
Mapping Twitter Globally
Mark Graham on 4 Mar 2011 09:38AM
Thanks to the crit-geog mailing list, I just came across Chris McDowall's brilliant visualisation of 24 hours of tweets:The geographic concentration of information production through the Twitter platform is to be expected (i.e. Western Europe and the US [...]
Haiti and Cloud Collaboration
Mark Graham on 22 Jan 2010 15:07PM
My colleague (and office-mate) Bernie Hogan recently directed me to the work being undertaken on Haiti.com. The site combines a live Twitter feed of Haiti-related posts with a map that allows the reporting (and visualisation) of information about [...]
Twitter and Geo-tagging
Mark Graham on 21 Aug 2009 21:13PM
According to the Twitter blog, the micro-blogging service will soon allow users to add lattitude and longitude to any tweet. This development will provide people with the ability to map and measure the movement and intensity of trends, thoughts, and ideas [...]