Science & technology | Machine learning

A sense of curiosity is helpful for artificial intelligence

Another approach to training machines

SOFTWARE that can learn is changing the world, but it needs supervision. Humans provide such oversight in two ways. The first is to show machine-learning algorithms large sets of data that describe the task at hand. Labelled pictures of cats and dogs, for instance, allow an algorithm to learn to discriminate between the two. The other form of supervision is to set a specific goal within a highly structured environment, such as achieving a high score in a video game, and then let the algorithm try out lots of possibilities until it finds one that achieves the objective.

This article appeared in the Science & technology section of the print edition under the headline “Head full of brains, shoes full of feet”

Peak Valley: Why startups are going elsewhere

From the September 1st 2018 edition

Discover stories from this section and more in the list of contents

Explore the edition

More from Science & technology

A person blowing about a pattern in the shape of a brain

Can you breathe stress away?

Scientists are only beginning to understand the links between the breath and the mind

The Economist’s science and technology internship

We invite applications for the 2025 Richard Casement internship


A man sits inside a pixelated pink brain while examining a clipboard, with colored squares falling from the brain

A better understanding of Huntington’s disease brings hope

Previous research seems to have misinterpreted what is going on


Is obesity a disease?

It wasn’t. But it is now

Volunteers with Down’s syndrome could help find Alzheimer’s drugs

Those with the syndrome have more of a protein implicated in dementia

Should you start lifting weights?

You’ll stay healthier for longer if you’re strong