Google is training artificial intelligence to recognize odors

ByRutledge Moeller 2019-12-27 1898

[gearbest News] for decades, perfumers and scientists have been trying to explore the relationship between molecular structure and smell. Although scientists can observe the wavelength of a light and identify its color, when it comes to smell, scientists cannot simply observe a molecule and recognize its smell, and researchers at Google's brainpower team hope AI can change that.

 

Researchers created a set of data that collected nearly 5000 molecules identified by perfumers and labeled them with descriptions such as "butter", "tropics" and "weeds". The team used about 2/3 of the data to train its artificial intelligence. The researchers then used the remaining odors to test artificial intelligence, and the results showed that these algorithms could predict molecular odors based on their structure.

But the foreign media have put forward several points for attention, and it is these problems that make olfactory research so difficult. First of all, two people may describe the same smell in different ways, such as "wood" or "earthy smell". Second, sometimes molecules have the same atoms and molecular bonds, and they are mirrored but have a completely different smell. This phenomenon is called "chiral molecular symmetry", such as champagne and mint. In addition, when you start mixing odors, things get more complicated.

Google researchers believe that training artificial intelligence to associate specific molecules with odors may greatly affect chemical research; human understanding of nutrition; sensory neuroscience and how we synthesize spices.


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