Friday, June 25, 2010
Machines can now detect your moods. At least one of them.
They then tested the program, called Pedesis, by scanning more than 350,000 English-language texts from 17,031 bloggers (with the permission of the writers), as well as 1,600 online queries addressed to mental health experts at sites like MentalHealth.net. Once the program identified texts as depressive, a panel of four clinical psychologists reviewed 200 examples from that category. The verdict of the computer program and the analysis of the human panel correlated 78 percent of the time, according to the researchers.

"A psychologist knows how to spot various emotional states through intuition. Here, we have a program that does this methodically through the innovative use of 'Web intelligence,'" said Neuman, who specializes in semiotics and psychology
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