The development of artificial intelligence (AI) is rapidly advancing thanks to a machine learning process called "deep learning," raising expectations of radical changes and greater convenience in people's lives.

The AI boom began early in the 2010s when major information technology companies such as U.S. companies Google Inc. and Facebook Inc. established research institutes, and the development of deep learning has added fuel to the fire.

Deep learning is a branch of machine learning in which a computer system mimics human neural circuits and processes information in multiple processing layers.