Menu
Sign In Search Podcasts Charts People & Topics Add Podcast API Blog Pricing

Alex Wiltschko

๐Ÿ‘ค Speaker
909 total appearances

Appearances Over Time

Podcast Appearances

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

We have to read the chemical world and turn it into digital signals.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

We have to map it, and then we have to write it back out again.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

In when we started doing this, I mean, I've been thinking about this problem for about 20 years and Osmo's been going for three.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

And before that, I was I was working on this problem at Google Brain for about six years.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

What's a little crazy is the ability to read the chemical world already existed.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

It was really good, actually.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

There's these things called spectrometers.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

It's what like CSI uses to figure out, you know, what are the different trace samples at a crime scene.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

And then the ability to write the chemical world back out again is also pretty good.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

There's these fluid handling robots that will move around ingredients and mix them kind of like an inkjet printer can mix inks.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

The part that was missing was the map.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

And that's been a super hard problem to crack.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

And again, let's think about vision.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

RGB, three numbers that are the map of color.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

And in fact, we roughly have three different kinds of color receptors in our eye.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

They roughly correspond to RGB.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

We have over 300 types of olfactory receptors in our nose.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

So the sense of smell is going to be, just based on that, 100 times higher dimensional, 100 times more complex.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

Whatever map exists for smell is not going to fit on a flat piece of paper.

The Neuron: AI Explained
Teaching Computers to Smell?! The AI That's Digitizing Scent

We're not going to look at an RGB diagram and be like, oh, that's why, you know, lavender smells close to this other floral, but far away from rotten eggs.