Faster Machine Unlearning

In the CACM: 
" ... Researchers at Lehigh and Columbia University have developed a machine-learning method that involves making such systems forget the data's "lineage" so they can remove the data and undo its effects and allow future operations to run as if the data never existed. Although the concept of "machine unlearning" is well-established, the researchers have developed a way to do it faster and more effectively than can be done using current methods. Effective machine-unlearning techniques can help improve the privacy and security of raw data. ... "