Bille and his team work with an optical instrument called an active mirror—a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies.
That user may also be texting an order for pizza during the game, while others in the room are tapping away on their phones or watching Netflix movies on a tablet.
In this method, subtractive clustering was adopted to divide the input space into several sub-spaces, and sub-models were built by Least Square SVM (ls SVM) in every sub-space.
Cohn says this kind of page-view tracking may seem innocuous, but if the company keeps the data long-term, the information could be subpoenaed to check someone's alibi, or as evidence in a lawsuit.
"If I see somebody who is throwing their life away with both hands and is raging around and destroying their family, I can't understand that person," he said.
Skype blamed the problem on the failure of "supernodes", parts of Skype's peer-to-peer network that facilitate calls between users, at about 8.30pm on Wednesday night.