Alex Krizhevsky (born in Ukraine, raised in Canada) is a computer scientist most noted for his work on artificial neural networks and deep learning. Shortly after having won the ImageNet challenge 2012 through AlexNet, he and his colleagues sold their startup DNN Research Inc. to Google. Krizhevsky left Google in September 2017 when he lost interest in the work. At the company Dessa, Krizhevsky will advise and help research new deep-learning techniques. Many of his numerous papers on machine learning and computer vision are frequently cited by other researchers.