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The Rise of Artificial Intelligence through Deep Learning | Yoshua Bengio | TEDxMontreal


our world is changing in many ways and

our world is changing in many ways and one of the things which is going to have

one of the things which is going to have

one of the things which is going to have a huge impact on our future is

a huge impact on our future is

a huge impact on our future is artificial intelligence AI bringing

artificial intelligence AI bringing

artificial intelligence AI bringing another Industrial Revolution previous

another Industrial Revolution previous

another Industrial Revolution previous industrial revolutions expended humans

industrial revolutions expended humans

industrial revolutions expended humans mechanical power this new revolution

mechanical power this new revolution

mechanical power this new revolution this second Machine Age is going to

this second Machine Age is going to

this second Machine Age is going to expand our cognitive abilities our

expand our cognitive abilities our

expand our cognitive abilities our mental power computers are not just

mental power computers are not just

mental power computers are not just going to replace manual labor but also

going to replace manual labor but also

going to replace manual labor but also mental labor so where do we stand today

mental labor so where do we stand today

mental labor so where do we stand today you may have heard about what happened

you may have heard about what happened

you may have heard about what happened last March when a machine learning

last March when a machine learning

last March when a machine learning system called alphago used deep learning

system called alphago used deep learning

system called alphago used deep learning to beat the world champion at the game

to beat the world champion at the game

to beat the world champion at the game of Go Go is an ancient Chinese game

of Go Go is an ancient Chinese game

of Go Go is an ancient Chinese game which had been much more difficult for

which had been much more difficult for

which had been much more difficult for computers to master than the game of

computers to master than the game of

computers to master than the game of chess how did we succeed now after

chess how did we succeed now after

chess how did we succeed now after decades of AI research alphago was

decades of AI research alphago was

decades of AI research alphago was trained to play go first by watching

trained to play go first by watching

trained to play go first by watching over and over tens of millions of moves

over and over tens of millions of moves

over and over tens of millions of moves made by very strong human players then

made by very strong human players then

made by very strong human players then by playing against itself millions of

by playing against itself millions of

by playing against itself millions of games machine learning allows computers

games machine learning allows computers

games machine learning allows computers to learn from examples to learn from

to learn from examples to learn from

to learn from examples to learn from data machine learning has turned out to

data machine learning has turned out to

data machine learning has turned out to be a key to cram knowledge into

be a key to cram knowledge into

be a key to cram knowledge into computers and this is important

computers and this is important

computers and this is important because knowledge is what enables

because knowledge is what enables

because knowledge is what enables intelligence putting knowledge into

intelligence putting knowledge into

intelligence putting knowledge into computers had been a challenge for

computers had been a challenge for

computers had been a challenge for previous approaches to AI why there are

previous approaches to AI why there are

previous approaches to AI why there are many things which we know intuitively so

many things which we know intuitively so

many things which we know intuitively so we cannot communicate them verbally we

we cannot communicate them verbally we

we cannot communicate them verbally we do not have conscious access to that

do not have conscious access to that

do not have conscious access to that intuitive knowledge how can we program

intuitive knowledge how can we program

intuitive knowledge how can we program computers with that knowledge what’s the

computers with that knowledge what’s the

computers with that knowledge what’s the solution the solution is for machines to

solution the solution is for machines to

solution the solution is for machines to learn that knowledge by themselves just

learn that knowledge by themselves just

learn that knowledge by themselves just as we do this is important because

as we do this is important because

as we do this is important because knowledge is what enables intelligence

knowledge is what enables intelligence

knowledge is what enables intelligence my mission has been to contribute to

my mission has been to contribute to

my mission has been to contribute to discover and understand principles of

discover and understand principles of

discover and understand principles of intelligence through learning whether

intelligence through learning whether

intelligence through learning whether animal or human or machine learning I

animal or human or machine learning I

animal or human or machine learning I and others believe that there are a few

and others believe that there are a few

and others believe that there are a few key principles just like the laws of

key principles just like the laws of

key principles just like the laws of physics simple principles which could

physics simple principles which could

physics simple principles which could explain our own intelligence and help us

explain our own intelligence and help us

explain our own intelligence and help us build intelligent machines for example

build intelligent machines for example

build intelligent machines for example think about the laws of aerodynamics

think about the laws of aerodynamics

think about the laws of aerodynamics which are general enough to explain the

which are general enough to explain the

which are general enough to explain the flight of both birds and planes wouldn’t

flight of both birds and planes wouldn’t

flight of both birds and planes wouldn’t it be amazing to discover such simple

it be amazing to discover such simple

it be amazing to discover such simple but powerful principles that would

but powerful principles that would

but powerful principles that would explain intelligence itself well we’ve

explain intelligence itself well we’ve

explain intelligence itself well we’ve made some progress my collaborators and

made some progress my collaborators and

made some progress my collaborators and I have contributed in recent years in a

I have contributed in recent years in a

I have contributed in recent years in a revolution in AI with our research on

revolution in AI with our research on

revolution in AI with our research on neural networks and deep learning an

neural networks and deep learning an

neural networks and deep learning an approach to machine learning which is

approach to machine learning which is

approach to machine learning which is inspired by the brain

inspired by the brain

inspired by the brain it started with speech recognition

it started with speech recognition

it started with speech recognition on your phones with neural networks

on your phones with neural networks

on your phones with neural networks since 2012 shortly after came a

since 2012 shortly after came a

since 2012 shortly after came a breakthrough in computer vision

breakthrough in computer vision

breakthrough in computer vision computers can now do a pretty good job

computers can now do a pretty good job

computers can now do a pretty good job of recognizing the content of images in

of recognizing the content of images in

of recognizing the content of images in fact approaching human performance on

fact approaching human performance on

fact approaching human performance on some benchmarks over the last five years

some benchmarks over the last five years

some benchmarks over the last five years a computer can now get an intuitive

a computer can now get an intuitive

a computer can now get an intuitive understanding of the visual appearance

understanding of the visual appearance

understanding of the visual appearance of a go board that is comparable to that

of a go board that is comparable to that

of a go board that is comparable to that of the best human players more recently

of the best human players more recently

of the best human players more recently following some discoveries made in my

following some discoveries made in my

following some discoveries made in my lab deep learning has been used to

lab deep learning has been used to

lab deep learning has been used to translate from one language to another

translate from one language to another

translate from one language to another and you know start seeing this in Google

and you know start seeing this in Google

and you know start seeing this in Google Translate this is expanding the

Translate this is expanding the

Translate this is expanding the computer’s ability to understand and

computer’s ability to understand and

computer’s ability to understand and generate natural language but don’t be

generate natural language but don’t be

generate natural language but don’t be fooled we are still very very far from a

fooled we are still very very far from a

fooled we are still very very far from a machine that would be as able as humans

machine that would be as able as humans

machine that would be as able as humans to learn to master many aspects of our

to learn to master many aspects of our

to learn to master many aspects of our world so let’s take an example even a

world so let’s take an example even a

world so let’s take an example even a two-year-old child is able to learn

two-year-old child is able to learn

two-year-old child is able to learn things in a way that computers are not

things in a way that computers are not

things in a way that computers are not able to do right now a two-year-old

able to do right now a two-year-old

able to do right now a two-year-old child actually masters intuitive physics

child actually masters intuitive physics

child actually masters intuitive physics she knows when she drops a ball that it

she knows when she drops a ball that it

she knows when she drops a ball that it is going to fall down when she spilled

is going to fall down when she spilled

is going to fall down when she spilled some liquids she expects the resulting

some liquids she expects the resulting

some liquids she expects the resulting mess her parents do not need to teach

mess her parents do not need to teach

mess her parents do not need to teach her about Newton’s laws or differential

her about Newton’s laws or differential

her about Newton’s laws or differential equations she discovers all these things

equations she discovers all these things

equations she discovers all these things by herself in an unsupervised way own

by herself in an unsupervised way own

by herself in an unsupervised way own supervised learning actually remains one

supervised learning actually remains one

supervised learning actually remains one of the key challenges for AI and it may

of the key challenges for AI and it may

of the key challenges for AI and it may take several more decades of fundamental

take several more decades of fundamental

take several more decades of fundamental research to crack that not unsupervised

research to crack that not unsupervised

research to crack that not unsupervised learning is actually trying

learning is actually trying

learning is actually trying to discover representations of the data

to discover representations of the data

to discover representations of the data let me show you an example consider a

let me show you an example consider a

let me show you an example consider a page on the screen that you’re seeing

page on the screen that you’re seeing

page on the screen that you’re seeing with your eyes or that the computer is

with your eyes or that the computer is

with your eyes or that the computer is seeing as an image a bunch of pixels in

seeing as an image a bunch of pixels in

seeing as an image a bunch of pixels in order to answer a question about the

order to answer a question about the

order to answer a question about the content of the image you need to

content of the image you need to

content of the image you need to understand its high-level meaning and

understand its high-level meaning and

understand its high-level meaning and this high level meaning corresponds to

this high level meaning corresponds to

this high level meaning corresponds to the highest level of representation in

the highest level of representation in

the highest level of representation in your brain lower down you have the

your brain lower down you have the

your brain lower down you have the individual meaning of words and even

individual meaning of words and even

individual meaning of words and even lower down you have characters which

lower down you have characters which

lower down you have characters which make up the words and those characters

make up the words and those characters

make up the words and those characters could be rendered in different ways with

could be rendered in different ways with

could be rendered in different ways with different strokes that make up the

different strokes that make up the

different strokes that make up the characters and those strokes are made up

characters and those strokes are made up

characters and those strokes are made up of edges and those edges are made up of

of edges and those edges are made up of

of edges and those edges are made up of pixels so these are different levels of

pixels so these are different levels of

pixels so these are different levels of representation but the pixels are not

representation but the pixels are not

representation but the pixels are not sufficient by themselves to make sense

sufficient by themselves to make sense

sufficient by themselves to make sense of the image to answer a high-level

of the image to answer a high-level

of the image to answer a high-level question about the content of the page

question about the content of the page

question about the content of the page your brain actually has these different

your brain actually has these different

your brain actually has these different levels of representation starting with

levels of representation starting with

levels of representation starting with neurons in the first visual area of

neurons in the first visual area of

neurons in the first visual area of cortex v1 which recognize edges and then

cortex v1 which recognize edges and then

cortex v1 which recognize edges and then neurons in the second visual area of

neurons in the second visual area of

neurons in the second visual area of cortex v2 which recognize strokes and

cortex v2 which recognize strokes and

cortex v2 which recognize strokes and small shapes higher up you have neurons

small shapes higher up you have neurons

small shapes higher up you have neurons which detect parts of objects and then

which detect parts of objects and then

which detect parts of objects and then objects and full scenes mule networks

objects and full scenes mule networks

objects and full scenes mule networks when they are trained with images can

when they are trained with images can

when they are trained with images can actually discover these types of levels

actually discover these types of levels

actually discover these types of levels of representation that match pretty well

of representation that match pretty well

of representation that match pretty well what we observe in the brain both

what we observe in the brain both

what we observe in the brain both biological neural networks which are

biological neural networks which are

biological neural networks which are what you have in your brain and the deep

what you have in your brain and the deep

what you have in your brain and the deep neural networks that we train on our

neural networks that we train on our

neural networks that we train on our machines can learn to transform from one

machines can learn to transform from one

machines can learn to transform from one level of representation to the next with

level of representation to the next with

level of representation to the next with the higher levels corresponding to

the higher levels corresponding to

the higher levels corresponding to more abstract notions for example the

more abstract notions for example the

more abstract notions for example the abstract notion of the character a can

abstract notion of the character a can

abstract notion of the character a can be rendered in many different ways at

be rendered in many different ways at

be rendered in many different ways at the lowest levels as many different

the lowest levels as many different

the lowest levels as many different configurations of pixels depending on

configurations of pixels depending on

configurations of pixels depending on your the position rotation font and so

your the position rotation font and so

your the position rotation font and so on so how do we learn these high levels

on so how do we learn these high levels

on so how do we learn these high levels of representations one thing that has

of representations one thing that has

of representations one thing that has been very successful up to now in the

been very successful up to now in the

been very successful up to now in the applications of deep learning is what we

applications of deep learning is what we

applications of deep learning is what we call supervised learning with supervised

call supervised learning with supervised

call supervised learning with supervised learning the computer needs to be taken

learning the computer needs to be taken

learning the computer needs to be taken by the hand and humans have to tell the

by the hand and humans have to tell the

by the hand and humans have to tell the computer the answer to many questions

computer the answer to many questions

computer the answer to many questions for example on millions and millions of

for example on millions and millions of

for example on millions and millions of images humans have to tell the Machine

images humans have to tell the Machine

images humans have to tell the Machine well for this image it is a cat for this

well for this image it is a cat for this

well for this image it is a cat for this image it is a dog for this image it is a

image it is a dog for this image it is a

image it is a dog for this image it is a laptop for this image is the keyboard

laptop for this image is the keyboard

laptop for this image is the keyboard and so on and so on millions of times

and so on and so on millions of times

and so on and so on millions of times this is very painful and we use

this is very painful and we use

this is very painful and we use crowdsourcing to manage to do that

crowdsourcing to manage to do that

crowdsourcing to manage to do that although this is very powerful and we

although this is very powerful and we

although this is very powerful and we are already able to solve very

are already able to solve very

are already able to solve very interesting problems humans are much

interesting problems humans are much

interesting problems humans are much stronger and they can learn over many

stronger and they can learn over many

stronger and they can learn over many more different aspects of the world in a

more different aspects of the world in a

more different aspects of the world in a much more autonomous way just as we’ve

much more autonomous way just as we’ve

much more autonomous way just as we’ve seen with the two-year-old child

seen with the two-year-old child

seen with the two-year-old child learning about intuitive physics

learning about intuitive physics

learning about intuitive physics unsupervised learning could also help us

unsupervised learning could also help us

unsupervised learning could also help us deal with self-driving cars let me

deal with self-driving cars let me

deal with self-driving cars let me explain what I mean

explain what I mean

explain what I mean unsupervised learning allows computers

unsupervised learning allows computers

unsupervised learning allows computers to project themselves into the future to

to project themselves into the future to

to project themselves into the future to generate plausible futures conditioned

generate plausible futures conditioned

generate plausible futures conditioned on the current situation and that allows

on the current situation and that allows

on the current situation and that allows computers to reason and to plan ahead

computers to reason and to plan ahead

computers to reason and to plan ahead even for circumstances that they have

even for circumstances that they have

even for circumstances that they have not been trained on this is important

not been trained on this is important

not been trained on this is important because if we use supervised learning we

because if we use supervised learning we

because if we use supervised learning we would have to tell the computers about

would have to tell the computers about

would have to tell the computers about all the circumstances where the car

all the circumstances where the car

all the circumstances where the car could be and that you know how human

could be and that you know how human

could be and that you know how human would react in that situation how did I

would react in that situation how did I

would react in that situation how did I learn to avoid dangerous

learn to avoid dangerous

learn to avoid dangerous fighting behavior did I have to die a

fighting behavior did I have to die a

fighting behavior did I have to die a thousand times in an accident well

thousand times in an accident well

thousand times in an accident well that’s the way we’re trying machines

that’s the way we’re trying machines

that’s the way we’re trying machines right now so it’s not going to fly or at

right now so it’s not going to fly or at

right now so it’s not going to fly or at least not to drive so what we need is to

least not to drive so what we need is to

least not to drive so what we need is to train our models to be able to generate

train our models to be able to generate

train our models to be able to generate plausible images plausible futures be

plausible images plausible futures be

plausible images plausible futures be creative and we’re making progress with

creative and we’re making progress with

creative and we’re making progress with that so we are training these deep

that so we are training these deep

that so we are training these deep neural networks to go from high-level

neural networks to go from high-level

neural networks to go from high-level meaning to pixels rather than from

meaning to pixels rather than from

meaning to pixels rather than from pixels to high-level of meaning so going

pixels to high-level of meaning so going

pixels to high-level of meaning so going in the other direction through the

in the other direction through the

in the other direction through the levels of representation in this way the

levels of representation in this way the

levels of representation in this way the computer can generate images there are

computer can generate images there are

computer can generate images there are new images different from what the

new images different from what the

new images different from what the computer has seen while it was trained

computer has seen while it was trained

computer has seen while it was trained but are plausible that looked like

but are plausible that looked like

but are plausible that looked like natural images we can also use these

natural images we can also use these

natural images we can also use these models to dream up strange sometimes

models to dream up strange sometimes

models to dream up strange sometimes scary images just like our dreams and

scary images just like our dreams and

scary images just like our dreams and nightmares here are some images that

nightmares here are some images that

nightmares here are some images that were synthesized by the computer using

were synthesized by the computer using

were synthesized by the computer using these deep genitive models they look

these deep genitive models they look

these deep genitive models they look like natural images but if you look

like natural images but if you look

like natural images but if you look closely you’ll see there are different

closely you’ll see there are different

closely you’ll see there are different and they’re still missing some of the

and they’re still missing some of the

and they’re still missing some of the important details that we would

important details that we would

important details that we would recognize as natural about ten years ago

recognize as natural about ten years ago

recognize as natural about ten years ago unsupervised learning has been a key to

unsupervised learning has been a key to

unsupervised learning has been a key to the breakthrough that we obtained

the breakthrough that we obtained

the breakthrough that we obtained discovering deep learning this was

discovering deep learning this was

discovering deep learning this was happening in just a few labs including

happening in just a few labs including

happening in just a few labs including mine at a time when neural networks were

mine at a time when neural networks were

mine at a time when neural networks were not popular

not popular

not popular they were almost abandoned by the

they were almost abandoned by the

they were almost abandoned by the scientific community now things have

scientific community now things have

scientific community now things have changed a lot it has become a very hot

changed a lot it has become a very hot

changed a lot it has become a very hot field there are now hundreds of students

field there are now hundreds of students

field there are now hundreds of students every year applying for graduate studies

every year applying for graduate studies

every year applying for graduate studies at my lab with my collaborators Montreal

at my lab with my collaborators Montreal

at my lab with my collaborators Montreal has become the largest academic

has become the largest academic

has become the largest academic concentration of deep learning

concentration of deep learning

concentration of deep learning researchers in the world

researchers in the world

researchers in the world we just received a huge research grant

we just received a huge research grant

we just received a huge research grant of 94 million dollars to push the

of 94 million dollars to push the

of 94 million dollars to push the boundaries of AI and data science and

boundaries of AI and data science and

boundaries of AI and data science and also to transfer technology of deep

also to transfer technology of deep

also to transfer technology of deep learning and data science to industry

learning and data science to industry

learning and data science to industry businesspeople stimulated by all this

businesspeople stimulated by all this

businesspeople stimulated by all this are creating startups industrial labs

are creating startups industrial labs

are creating startups industrial labs many of which near the universities for

many of which near the universities for

many of which near the universities for example just a few weeks ago we

example just a few weeks ago we

example just a few weeks ago we announced the launch of a startup

announced the launch of a startup

announced the launch of a startup factory called element AI which is going

factory called element AI which is going

factory called element AI which is going to focus on deep learning applications

there is just not enough deep learning

there is just not enough deep learning experts so they’re getting paid crazy

experts so they’re getting paid crazy

experts so they’re getting paid crazy salaries and many of my former academic

salaries and many of my former academic

salaries and many of my former academic colleagues have accepted generous deals

colleagues have accepted generous deals

colleagues have accepted generous deals from companies to work in industrial

from companies to work in industrial

from companies to work in industrial labs I for myself have chosen to stay in

labs I for myself have chosen to stay in

labs I for myself have chosen to stay in university to work for the public good

university to work for the public good

university to work for the public good to work with students to remain

to work with students to remain

to work with students to remain independent to guide the next generation

independent to guide the next generation

independent to guide the next generation of deep learning experts one thing that

of deep learning experts one thing that

of deep learning experts one thing that we’re doing beyond commercial value is

we’re doing beyond commercial value is

we’re doing beyond commercial value is thinking about the social implications

thinking about the social implications

thinking about the social implications of AI many of us are now starting to

of AI many of us are now starting to

of AI many of us are now starting to turn our eyes towards social value added

turn our eyes towards social value added

turn our eyes towards social value added applications like health we think that

applications like health we think that

applications like health we think that we can use deep learning to improve

we can use deep learning to improve

we can use deep learning to improve treatment with personalized medicine I

treatment with personalized medicine I

treatment with personalized medicine I believe that in the future as we collect

believe that in the future as we collect

believe that in the future as we collect more data from millions and billions of

more data from millions and billions of

more data from millions and billions of people around the earth we’ll be able to

people around the earth we’ll be able to

people around the earth we’ll be able to provide medical advice to billions of

provide medical advice to billions of

provide medical advice to billions of people who don’t have access to it right

people who don’t have access to it right

people who don’t have access to it right now and we can imagine many other

now and we can imagine many other

now and we can imagine many other applications for social value of AI for

applications for social value of AI for

applications for social value of AI for example something that will come out of

example something that will come out of

example something that will come out of our research on natural language

our research on natural language

our research on natural language understanding is providing all kinds of

understanding is providing all kinds of

understanding is providing all kinds of services like legal services to

services like legal services to

services like legal services to who can’t afford them we are now turning

who can’t afford them we are now turning

who can’t afford them we are now turning our eyes also towards the social

our eyes also towards the social

our eyes also towards the social implications of AI in my community but

implications of AI in my community but

implications of AI in my community but it’s not just for experts to think about

it’s not just for experts to think about

it’s not just for experts to think about this

this

this I believe that beyond the math and the

I believe that beyond the math and the

I believe that beyond the math and the jargon ordinary people can get a sense

jargon ordinary people can get a sense

jargon ordinary people can get a sense of what goes on under the hood enough to

of what goes on under the hood enough to

of what goes on under the hood enough to participate in the important decisions

participate in the important decisions

participate in the important decisions that will take place in the next few

that will take place in the next few

that will take place in the next few years and decades about AI so please set

years and decades about AI so please set

years and decades about AI so please set aside your fees and give yourself some

aside your fees and give yourself some

aside your fees and give yourself some space to learn about it my collaborators

space to learn about it my collaborators

space to learn about it my collaborators and I have written several introductory

and I have written several introductory

and I have written several introductory papers and a book entitled deep learning

papers and a book entitled deep learning

papers and a book entitled deep learning to help students and engineers jump into

to help students and engineers jump into

to help students and engineers jump into this exciting field there are also many

this exciting field there are also many

this exciting field there are also many online resources software tutorials

online resources software tutorials

online resources software tutorials videos and many undergraduate students

videos and many undergraduate students

videos and many undergraduate students are learning a lot of this about

are learning a lot of this about

are learning a lot of this about research and deep learning by themselves

research and deep learning by themselves

research and deep learning by themselves to later join the ranks of labs like

to later join the ranks of labs like

to later join the ranks of labs like mine ai is going to have a profound

mine ai is going to have a profound

mine ai is going to have a profound impact on our society so it’s important

impact on our society so it’s important

impact on our society so it’s important to ask how are we going to use it

immense positives may come along with

immense positives may come along with negatives such as military use or rapid

negatives such as military use or rapid

negatives such as military use or rapid disruptive changes in the job market to

disruptive changes in the job market to

disruptive changes in the job market to make sure the collective choices that

make sure the collective choices that

make sure the collective choices that will be made about AI the next few years

will be made about AI the next few years

will be made about AI the next few years will be for the benefit of all every

will be for the benefit of all every

will be for the benefit of all every citizen should take an active role in

citizen should take an active role in

citizen should take an active role in defining how a I will shape our future

defining how a I will shape our future

defining how a I will shape our future thank

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