Google researchers have invented an algorithm to determine which YouTube videos are the most amusing and declared 'No No No No Cat' the winner. The clip is not among the most popular at the video-sharing website, but Google's math wizards were able to glean data from how people expressed their amusement in the video's comments section. According to the search giant, other hilarious clips include 'Guy Gets Killed By Bear', 'Marshmallow Murder', 'Old Man Shuffling', and 'Angry Italian Man'. View the video at Mail Online.