Introduction
Over the last three years, the deep learning version of machine learning has made more inroads into learning systems than all the artificial intelligence ever developed, particularly to understand image, voice and language processing, etc. However, a general intelligence system mirroring human intelligence must not only have our phenomenal learning abilities but also develop high level social-cognitive abilities. Machines can tell us what customers are looking at and feeling inside, second by second (eye tracking and facial coding), and doing (time and pathway in shopping centre, navigating store, supermarket alleys, airline lounges and online buying behaviour). Machines,...