Foundational Paper:
Human language reveals a universal positivity bias.
P. S. Dodds, E. M. Clark, S. Desu, M. R. Frank, A. J. Reagan, J. R. Williams, L. Mitchell, K. D. Harris, I. M. Kloumann, J. P. Bagrow, K. Megerdoomian, M. T. McMahon, B. F. Tivnan, and C. M. Danforth, 2015.
[pdf] [online app-endices] [journal url]
Foundational Paper:
Temporal Patterns of Happiness and Information in a Global-Scale Social Network: Hedonometrics and Twitter.
P. S. Dodds, K. D. Harris, I. M. Kloumann, C. A. Bliss, C. M. Danforth. 2011.
PLoS ONE, 6, e26752, 2011. [pdf] [journal url]
Happiness and the Patterns of Life: A Study of Geolocated Tweets.
M. R. Frank, L. Mitchell, P. S. Dodds, C. M. Danforth. 2013.
Scientific Reports 2013. Vol. 3, No: 2625, doi:10.1038/srep02625. [pdf] [journal url]
The Geography of Happiness: Connecting Twitter sentiment and expression, demographics, and objective characteristics of place.
L. Mitchell, K. D. Harris, M. R. Frank, P. S. Dodds, C. M. Danforth. 2013.
PLoS ONE. 8(5): e64417. doi:10.1371/journal.pone.0064417
[pdf] [journal url]
Twitter Reciprocal Reply Networks Exhibit Assortativity with respect to Happiness.
C. A. Bliss, I. M. Kloumann, K. D. Harris, C. M. Danforth, P. S. Dodds. 2012.
Journal of Computational Science, 3, 388-397, 2012. [pdf] [journal url]
Positivity of the English Language.
I. M. Kloumann, C. M. Danforth, K. D. Harris, C. A. Bliss, P. S. Dodds. 2012.
PLoS ONE, 7, e29484, 2012. [pdf] [journal url]
Measuring the Happiness of Large-Scale Written Expression: Songs, Blogs, and Presidents.
P. S. Dodds, C. M. Danforth. 2009.
Journal of Happiness Studies, 11, 444-456, 2010. [pdf] [journal url]