We've long associated color with emotion. Intuitively, each of us associates colors with feelings. Brighter colors often signify good moods, while neutrals and gays are typically associated with negative feelings. This simple concept led researchers Andrew Reece (Harvard) and Chris Danforth (University of Vermont) to create an algorithm that attempted to use color - and other bits of information left behind in photos - to help identify depression on Instagram. To start, the pair sourced some 500 workers from Amazon's Mechanical Turk service that had Instagram accounts. They asked each of these individuals to fill out a series of questionnaires, including a…
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