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Mapping happiness

New social media mapping sites are popping up all over the place these days – whether it’s crisis-mapping sites like Sinsai.info or this new ‘happiness’ map from PhD student Alex Davies.

Davies, a PhD student at the University of Cambridge’s Computational and Biological Learning Lab, created a statistical model to analyze the sentiment (happy or sad) of Tweets from around the world.  In Davies’ model, individual words within Tweets were correlated with happiness or sadness, then used to predict the overall sentiment of the Tweet. Tweets were geo-tagged and summarized by area to calculate a composite ‘happiness’ ranking for states within the U.S. and for countries worldwide. The results are presented on Davies’ website in an interactive web map app. Raw data from the Tweets is presented alongside the maps to give viewers a sense of which Tweet words were correlated with happiness or sadness.  See below for maps of US happiness and world happiness – and an image showing some of the worldwide ‘happy’ words.

Happiness map of the United States:

 

Happiness map of the world:

Happy words for the world:

 

 

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NPR Story on Crisis Mapping in Japan

Last week NPR ran a story on crisis mapping in Japan – focusing on the open-source, citizen-driven Sinsai.info website. Here’s the description from the NPR website:

Open source software called Ushahidi allows people to add and update information to maps that anyone with an Internet connection can access. In Tokyo, a crew of volunteers is using the software to map everything — from health services to the location of emergency aid workers — in Japan’s hardest hit areas. Patrick Meier, director of the crisis mapping segment of Ushahidi, says that because of the robust Internet infrastructure in Japan and tech-savvy citizenry, online crisis mapping is being utilized to its fullest potential.

Click here to hear the NPR audio clip. Thanks to Deb for the heads up about this story!