Grey System

I have been not studying and discussing grey system so long. Yesterday, I found a friend made some comments on my entry about Grey System in our Machine Learning discussing block. His ID was stochasticpr. He had commented on grey system. From his comments, I knew the Journal of Grey System was a index of SCI now. It's a piece of nice news.

We discussed more on mails. By my judgment, he was good at grey system, and had done much on it.

We all believed that right now it was a painful period of grey system. We'd like to discuss more.