Text this: Detecting unfair rating attacks in online rating systems

 _____     __   __    _  _     ______   ______   
|  __ \\   \ \\/ //  | \| ||  /_   _// |      \\ 
| |  \ ||   \ ` //   |  ' ||   -| ||-  |  --  // 
| |__/ ||    | ||    | .  ||   _| ||_  |  --  \\ 
|_____//     |_||    |_|\_||  /_____// |______// 
 -----`      `-`'    `-` -`   `-----`  `------`