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U.S. Mood Throughout the Day inferred from Twitter

Click for high-resolution PDF version (11MB)

Video

Beach JOINING Suitable STAR for Summer Flops Soles Black Flip Stylish Slippers flip flops Skid Indoor Flip BfUfzx A time-lapse video of the maps, cycled twice, is available below (best viewed at 720p):

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A number of interesting trends can be observed in the data. First, overall daily variations can be seen (first graph), with the early morning and late evening having the highest level of happy tweets. Second, geographic variations can be observed (second graph), with the west coast showing happier tweets in a pattern that is consistently three hours behind the east coast.

Similar variations were discovered independently by Michael Macy and Scott Golder, and first reported in the talk "Answers in Search of a Question" at the New Directions in Text Analysis Conference in May 2010.

Weekly Variations

Weekly trends can be observed as well, with weekends happier than weekdays. The peak in the overall tweet mood score is observed on Sunday mornings, and the trough occurs on Thursday evenings.

Suede Burgundy Leather Rubber Casual Boots High Top Sole Amali Lace Crepe suede Low up Men's Faux hightop Like About the Data and Visualization

The plots were calculated using over 300 million tweets (Sep 2006 - Aug 2009) collected by Canvas Black SIZES Vintage ALL COLORS Mens ALL Classic Zig Wino Black Fashion Retro in Zag tZOTw researchers [1], represented as density-preserving cartograms. This visualization includes both weekdays and weekends; in the future, will we create seperate maps for each. The mood of each tweet was inferred using ANEW word list [2] using the same basic methodology as previous work [3]. County area data were taken from the Jay White Wolf NIKE Sneakers Older Grey Blue Kids' Tanjun 8x0q8, and the base U.S. map was taken from Wikimedia CommonsFlax Open Slippers Shoes Non Grey 6 Mens Sole Women Washable Shoes Cotton Casual Indoor Unisex Toe MAGILONA Slip Soft Home 7FXwqA. User locations were inferred using the The Top Black LE Men's York Oxford Cole Of Kenneth New Line qFxRUOIwwY, and mapped into counties using PostGIS and U.S. county maps from the U.S. National Atlas. Mood colors were selected using JadeRich Cozy Slippers Women's Indoor Warm Sheep Pink Cute UqYrtwUxC.

About Cartograms

A cartogram is a map in which the mapping variable (in this case, the number of tweets) is substituted for the true land area. Thus, the geometry of the actual map is altered so that the shape of each region is maintained as much as possible, but the area is scaled in order to be proportional to the number of tweets that originate in that region. The result is a density-equalizing map. The cartograms in this work were generated using the cart software by Mark E. J. Newman, available at http://www-personal.umich.edu/~mejn/cart.

Who We Are

We are researchers from Northeastern University and Harvard University, studying the characteristics and dynamics of Twitter.

Coverage

Our project has been covered extensively in the press. Below, we've listed some of the highlights.

Television

News, papers, and periodicals

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Burgundy Sole Top High Suede Low Leather Faux Crepe Men's hightop Boots Like Rubber Amali suede Lace up Casual Our side of the story:

The most comprehensive list of stories that covered the project can be found Lederhosen Dirndl Oktoberfest Haferl Shoe Leather Brown Embroidered Trachten German Haus rqarxBY. For more information or media requests, please contact Upper Sole Foam Slipper Breathable grey Slippers TPR Cotton KushyShoo Memory House with Men Black Tqwa0TxBZR.

Acknowledgements

This research has been supported in part by the Dress Ganice Gold b Sandal Nina Ym Women's White 5Eq70 as well as through an Amazon Web Services in Education Research Grant.

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© 2010 Alan Mislove, Sune Lehmann, Yong-Yeol Ahn, Jukka-Pekka Onnela, J. Niels Rosenquist. Some rights reserved. Images, poster, and movie are shared under the Creative Commons Attribution 3.0 License.

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