Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.

 

Thomas Edison

DeepMind explores inner workings of artificial intelligence

RATE THIS! +17
Posted in Software on 24th Mar, 2018 12:16 AM by Alex Muller

As with the human brain, the neural networks that power artificial intelligence systems are not easy to understand. DeepMind, the Alphabet-owned AI firm famous for teaching an AI system to play Go, is attempting to work out how such systems make decisions. By knowing how AI works, it hopes to build smarter systems.

 

But researchers acknowledged that the more complex the system, the harder it might be for humans to understand. The fact that the programmers who build AI systems do not entirely know why the algorithms that power it make the decisions they do, is one of the biggest issues with the technology.

 

It makes some wary of it and leads others to conclude that it may result in out-of-control machines.


Just as with a human brain, neural networks rely on layers of thousands or millions of tiny connections between neurons, clusters of mathematical computations that act in the same way as the neurons in the brain.

 

These individual neurons combine in complex and often counter-intuitive ways to solve a wide range of challenging tasks.

 

"This complexity grants neural networks their power but also earns them their reputation as confusing and opaque black boxes," wrote the researchers in their paper.

 

According to the research, a neural network designed to recognise pictures of cats will have two different classifications of neurons working in it - interpretable neurons that respond to images of cats and confusing neurons, where it is unclear what they are responding to.

 

To evaluate the relative importance of these two types of neurons, the researchers deleted some to see what effect it would have on network performance.

 

They found that neurons that had no obvious preference for images of cats over pictures of any other animal, play as big a role in the learning process as those clearly responding just to images of cats.

 

They also discovered that networks built on neurons that generalise, rather than simply remembering images they had been previously shown, are more robust.

 

"Understanding how networks change... will help us to build new networks which memorise less and generalise more," the researchers said in a blog.

 

"We hope to better understand the inner workings of neural networks, and critically, to use this understanding to build more intelligent and general systems," they concluded.

 

However, they acknowledged that humans may still not entirely understand AI.

 

DeepMind research scientist Ari Morcos told the BBC: "As systems become more advanced we will definitely have to develop new techniques to understand them."


Tags: AIsoftwaredeep learningartificial intelligence

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Science on 2018-09-17 20:54:33
    Why NASA wants to build a nuclear reactor on the Moon..read more
    Posted in Medicine on 2018-09-17 16:06:39
    Anti-ageing drugs are coming, experts expain..read more
    Posted in Science on 2018-09-16 23:29:58
    NovaSAR: UK radar satellite launches to track illegal.....read more
    Posted in Science on 2018-09-14 20:59:48
    New Technique Heals Wounds With Reprogrammed Skin Cells..read more
    Posted in Business on 2018-09-14 20:56:05
    World population is now half middle class or richer..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be mainstream..read more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower cost.....read more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down to.....read more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US energy..read more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation?..read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me