A hedonometer or hedonimeter is a device used to gauge happiness or pleasure. Conceived of at least as early as 1880, the term was used in 1881 by the economist Francis Ysidro Edgeworth to describe "an ideally perfect instrument, a psychophysical machine, continually registering the height of pleasure experienced by an individual."
More recently, it has been used to refer to a tool developed by Peter Dodds and Chris Danforth to gauge the valence of various corpora, including historical State of the Union addresses, song lyrics, and online tweets and blogs. A version of the tool is available at hedonometer.org, which they call a sort of "Dow Jones Index of Happiness", and hope will be used by government officials in conjunction with other metrics as a gauge of the population's well-being.
- If you're happy, then we know it: Scientists build 'hedonometer' (July 24, 2009)
- Temporal Patterns of Happiness and Information in a Global Social Network: Hedonometrics and Twitter
- Oxford English Dictionary definition
- Edgeworth's Hedonimeter and the Quest to Measure Utility
- Reuters - "Jackson's death was blogosphere's saddest day: study"
- Measuring the Happiness of Large-Scale Written Expression: Songs, Blogs, and Presidents
- The Atlantic - "The Geography of Happiness According to 10 Million Tweets"
- Computational Story Lab - "Now online: the Dow Jones Index of Happiness"
- Bloomberg Businessweek - "Forget GDP. Data Crunchers Measure Happy Tweets for Key Economic Indicator"
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