Farewell Editorial: Smooth Transition of IEEE TNNLS

Time flies! It has been six years since I took over as the Editor-in-Chief of the IEEE TRANSACTIONS ON NEURAL NETWORKS in January 2010. This issue not only marks the last issue of 2015 but is also my last one as the Editor-in-Chief. Serving as the Editor-in-Chief was truly an exciting and good learning experience for me. In the past six years, our TRANSACTIONS has grown significantly.Most importantly, we implemented a title change to the IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, and our annual submission numbers have been doubled to reach 1200 submissions now. It has been a remarkable six years for me to work with amazing authors, reviewers, associate editors, and the IEEE staff.