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How_It_Works_Issue_99_2017

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DID YOU KNOW? A neural network called MarI/O was created specifically to beat the tricky levels of Super Mario World<br />

due to the fact that as we march from generalpurpose<br />

AI towards human level intelligence,<br />

we’ll need more and more powerful computers;<br />

and we’ve yet to invent something that can rival<br />

the processing power of the human brain.<br />

But we wouldn’t be human if we didn’t rise to<br />

the challenge, and scientists are currently<br />

working on new computers that have the<br />

potential to be extremely powerful. These are<br />

known as quantum computers, and they take<br />

advantage of nature’s ‘spooky’ properties to<br />

work in amazing ways. The speed at which they<br />

can make calculations is mind-blowing.<br />

A good way to compare a normal computer<br />

with a quantum computer is to imagine the<br />

Building a sentence<br />

With the phonemes arranged, the software<br />

constructs the sentence. To make the most<br />

accurate guess it arranges the words like links<br />

in a chain, and uses statistical analysis to work<br />

out the most probable word sequence.<br />

Call<br />

40%<br />

Me<br />

A<br />

<strong>How</strong> smart virtual<br />

assistants use AI to<br />

make our lives that<br />

little bit easier<br />

centre of a maze. When the task is to escape, a<br />

normal computer will try each path one at a<br />

time, until it follows the right route and escapes.<br />

But a quantum computer can search every path<br />

at the same time. This means it is much quicker<br />

and much more powerful, and could be the key<br />

to unlocking an equivalent, or greater, power<br />

than the human brain when coupled with a<br />

sophisticated artificial intelligence. We can only<br />

wonder what awaits us on the outside of the<br />

quantum computing maze; we may achieve<br />

human level intelligence, or perhaps even<br />

greater. We may even create a super intelligence,<br />

one that surpasses our own cognitive abilities.<br />

This probably sounds both exciting and<br />

Taxi<br />

50%<br />

Artificial<br />

assistants<br />

Assigning meaning<br />

This is where the learning part comes in.<br />

Depending on the context, there may be<br />

more than one way of interpreting the<br />

sentence. If the programme<br />

misinterprets your request it will store<br />

the data so it can learn from its mistakes.<br />

Call me<br />

“a taxi”<br />

OR<br />

Call a<br />

taxi for<br />

me<br />

Quick, Draw!<br />

Using the power of neural networks and<br />

machine learning, coders and designers have<br />

built a heap of creative programmes for<br />

Google’s AI-based web experiments, including<br />

one programme that can perform an<br />

improvised duet on the piano alongside a<br />

human player! But perhaps the most fun of<br />

them all is the Quick, Draw! programme, which<br />

is able to correctly identify even the most<br />

obscure of doodles.<br />

When playing the game, you’re given just 20<br />

seconds to draw an object (given in writing),<br />

then the neural network does its best to<br />

determine what it is just from your hastily<br />

drawn lines and squiggles. For us, identifying<br />

images is a relatively easy task, but the same<br />

cannot be said for a computer. Five different<br />

people may draw a rhinoceros five different<br />

ways, so Quick, Draw! must be taught to<br />

recognise them all. <strong>It</strong> achieves this by training<br />

itself using a collection of catalogued doodles,<br />

allowing it to recognise features that we’ll<br />

always include in a certain drawing.<br />

You can join the<br />

fun and play<br />

Quick, Draw! at<br />

quickdraw.<br />

withgoogle.<br />

com<br />

© WIKI/ Joe Mabel/ Chemical Heritage Foundation; Google; Thinkstock<br />

Radio waves<br />

The best virtual<br />

assistants are equipped<br />

with voice recognition<br />

software. This uses an<br />

audio capture device to<br />

record the sound waves<br />

of your speech. This is<br />

then sent to the cloud,<br />

where the waves are<br />

deconstructed into<br />

chunks of phonemes.<br />

Distance:<br />

4km<br />

Distance:<br />

5km<br />

Calling a cab<br />

Once the programme is<br />

confident of what you’re<br />

requesting, it can begin to<br />

search the broader network.<br />

Using keywords in your<br />

request the search can be<br />

tailored. The assistant can<br />

then complete the request.<br />

HIW Taxi co. is<br />

on its way<br />

Call me a taxi<br />

please<br />

“We’ve yet to invent<br />

something that can<br />

rival the processing power<br />

of the human brain”<br />

WWW.HOWITWORKSDAILY.COM<br />

<strong>How</strong> <strong>It</strong> <strong>Works</strong> | 015

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