Contribute correction: KDD CG Selection Vol. 2

  ______    ______    ______    _____   
 /_____//  /_   _//  /_   _//  |  ___|| 
 `____ `    -| ||-   `-| |,-   | ||__   
 /___//     _| ||_     | ||    | ||__   
 `__ `     /_____//    |_||    |_____|| 
 /_//      `-----`     `-`'    `-----`  
 `-`