MacDirectory magazine is the premiere creative lifestyle magazine for Apple enthusiasts featuring interviews, in-depth tech reviews, Apple news, insights, latest Apple patents, apps, market analysis, entertainment and more.
Issue link: https://digital.macdirectory.com/i/1522076
Ai is Cracking a Hard Problem - Giving Computers a Sense of Smell Ambuj Tewari - Professor of Statistics, University of Michigan Special thanks to The Conversation for republishing permission. There is a fine line between creativity and self-destruction. Apple’s new crush advert, which shows items linked to creative pursuits being pulverised to make way for the new iPad Pro, tried to find that line but instead appears to have made a rare mis-step. It has angered a lot of people in the process. Apple has now apologised and said it no longer plans to air the ad on TV. Over 100 years ago, Alexander Graham Bell asked the readers of National Geographic to do something bold and fresh – “to found a new science.” He pointed out that sciences based on the measurements of sound and light already existed. But there was no science of odor. Bell asked his readers to “measure a smell.” Today, smartphones in most people’s pockets provide impressive built-in capabilities based on the sciences of sound and light: voice assistants, facial recognition and photo enhancement. The science of odor does not offer anything comparable. But that situation is changing, as advances in machine olfaction, also called “digitized smell,” are finally answering Bell’s call to action. Research on machine olfaction faces a formidable challenge due to the complexity of the human sense of smell. Whereas human vision mainly relies on receptor cells in the retina – rods and three types of cones – smell is experienced through about 400 types of receptor cells in the nose. Machine olfaction starts with sensors that detect and identify molecules in the air. These sensors serve the same purpose as the receptors in your nose. But to be useful to people, machine olfaction needs to go a step further. The system needs to know what a certain molecule or a set of molecules smells like to a human. For that, machine olfaction needs machine learning.