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New system detects emotions based on Variables ranging from Typing speeds to weather.
Researchers at Samsung have developed a smart phone that can detect people's emotions. Rather than relying on specialized sensors or cameras, the phone infers a user's emotional state based on how he's using the phone.
For example, it monitors certain inputs, such as the speed at which a user types, how often the "backspace" or "special symbol" buttons are pressed, and how much the device shakes. These measures let the phone postulate whether the user is happy, sad, surprised, fearful, angry, or disgusted, says Hosub Lee, a researcher with Samsung Electronics and the Samsung Advanced Institute of Technology's Intelligence Group, in South Korea.
Lee led the work on the new system. He says that such inputs may seem to have little to do with emotions, but there are subtle correlations between these behaviors and one's mental state, which the software's machine-learning algorithms can detect with an accuracy of 67.5 percent.