Google’s AI Course for Beginners (in 10 minutes)!
By Jeff Su
Summary
## Key takeaways - **AI is a broad field, ML is a subfield**: Artificial Intelligence (AI) is a broad field of study, similar to physics. Machine Learning (ML) is a subfield within AI, much like thermodynamics is a subfield of physics. [00:39], [00:48] - **Supervised vs. Unsupervised Learning**: Supervised learning models use labeled data to make predictions and refine them by comparing to the training data. Unsupervised learning models use unlabeled data to identify natural groupings within the data without refinement. [01:54], [03:18] - **Deep Learning & Semi-Supervised Learning**: Deep learning, a subset of machine learning, utilizes artificial neural networks inspired by the human brain. Semi-supervised learning combines a small amount of labeled data with a large amount of unlabeled data for training, as seen in fraud detection. [03:33], [04:04] - **Generative AI creates new content**: Generative AI models learn patterns from data and then create entirely new outputs like text, images, or audio, unlike discriminative models which only classify existing data. [05:18], [05:51] - **LLMs: Pre-trained then Fine-tuned**: Large Language Models (LLMs) are pre-trained on vast datasets for general language tasks and then fine-tuned with industry-specific data to perform specialized functions in fields like healthcare or finance. [07:21], [08:05]
Topics Covered
- Unpacking AI: Understanding its Core Subfields
- Labeled vs. Unlabeled Data: Two ML Paradigms
- Deep Learning: Efficient Training with Less Labeled Data
- Generative AI: Creating New Content, Not Just Classifying
- LLM Fine-tuning: Customizing AI for Industry-Specific Needs
Full Transcript
if you don't have a technical background
but you still want to learn the basics
of artificial intelligence stick around
because we were distilling Google's
4-Hour AI course for beginners into just
10 minutes I was initially very
skeptical because I thought the course
would be too conceptual we're all about
practical tips on this channel and
knowing Google the course might just
disappear after 1 hour but I found the
underlying Concepts actually made me
better at using tools like Chachi BT and
Google bard and cleared up a bunch of
misconceptions I didn't know I had about
AI machine learning and large language
models so starting with the broadest
possible question what is artificial
intelligence it turns out and I'm so
embarrassed to admit I didn't know this
AI is an entire field of study like
physics and machine learning is a
subfield of AI much like how
thermodynamics is a subfield of physics
going down another level deep learning
is a subset of machine learning and deep
learning models can be further broken
down into something called
discriminative models and generative
models large language models llms also
fall under deep learning and right at
the intersection between generative and
llms is the technology that powers the
applications we're all familiar with
chat gbt and Google bard let me know in
the comments if this was news to you as
well now that we have an understanding
of the overall landscape and you see how
the different disciplines sit in
relation to each other let's go over the
key takeaways you should know for each
level in a nutshell machine learning is
a program that uses input data to train
a model that trained model can then make
predictions Based on data it has never
seen before for example if you train a
model based on Nike sales data you can
then use that model to predict how well
a new shoe from Adidas would sell based
on Adidas sales data two of the most
common types of machine learning models
are supervised and unsupervised learning
models the key difference between the
two is supervised models use labeled
data and unsupervised models use
unlabeled data in this supervised
example we have historical data points
that plot the total bill amount at a
restaurant against the tip amount and
here the data is labeled Blue Dot equals
the order was picked up and yellow dot
equals the order was delivered using a
supervised learning model we can now
predict how much tip we can expect for
the next order given the bill amount and
whether it's picked up or delivered for
unsupervised learning models we look at
the raw data and see if a naturally
falls into groups in this example we
plotted the employee tenure at a company
against their income we see this group
of employees have a relatively High
income to years work ratio versus this
group we can also see all these are
unlabeled data if they were labeled we
would see male female years worked
company function Etc we can now ask this
unsupervised learning model to solve a
problem like if a new employee joins are
they on the FasTrack or not if they
appear on on the left then yes if they
appear on the right then no Pro tip
another big difference between the two
models is that after a supervised
learning model makes a prediction it
will compare that prediction to the
training data used to train that model
and if there's a difference it tries to
close that Gap unsupervised learning
models do not do this by the way this
video is not sponsored but it is
supported by those of you who subscribe
to my paid productivity newsletter on
Google tips Link in the description if
you want to learn more now we have a
basic Gra as of machine learning it's a
good time to talk about deep learning
which is just a type of machine learning
that uses something called artificial
neural networks don't worry all you have
to know for now is that artificial
neural networks are inspired by the
human brain and looks something like
this layers of nodes and neurons and the
more layers there are the more powerful
the model and because we have these
neural networks we can now do something
called semisupervised learning whereby a
deep learning model is trained on a
small amount of labeled data and a large
amount of unlabeled data for example a
bank might use deep learning models to
detect fraud the bank spends a bit of
time to tag or label 5% of transactions
as either fraudulent or not fraudulent
and they leave the remaining 95% of
transactions unlabeled because they
don't have the time or resources to
label every transaction the magic
happens when the Deep learning model
uses the 5% of label data to learn the
basic concepts of the task okay these
transactions are good and these are bad
okay apply those learnings to the
remaining 95% of unlabeled data and
using this new aggregate data set the
model makes predictions for future
transactions that's pretty cool and
we're not done because deep learning can
be divided into two types discriminative
and generative models discriminative
models learn from the relationship
between labels of data points and only
has the ability to classify those data
points fraud not fraud for example you
have a bunch of pictures or data points
you purposefully label some of them as
cats and some of them as dogs a
discriminative model will learn from the
label cat or dog and if you submit a
picture of a dog it will predict the
label for that new data point a dog we
finally get to generative AI unlike
discriminative models generative models
learn about the patterns in the training
data then after they receive some input
for example a text prompt from us they
generate something new based on the
patterns they just learned going back to
the animal example the pictures or data
points are not labeled as cater doog so
a generative model will look for
patterns oh these data points all have
two ears four legs a tail likes dog food
and Barks when as to generate something
called a dog the generative model
generates a completely new image based
on the patterns it just learned there's
a super simple way to determine if
something is generative AI or not if the
output is a number a class ification
spam not spam or a probability it is not
generative AI it is Gen AI when the
output is natural language text or a
speech an image or audio basically
generative AI generates new samples that
are similar to the data it was trained
on moving on to different generative AI
model types most of us are familiar with
textto text models like Chach BT and
Google bard other common model types
include text to image models like midj
Dolly and stable diffusion these can not
only generate images but edit images as
well text to video models surprise
surprise can generate and edit video
footage examples include Google's
imageen video Cog video and the Very
creatively named make a video text to 3D
models are used to create game assets
and a little known example would be open
ai's shape e model and finally text to
task models are trained to perform a
specific task for example if you type
Gmail summarize my unread emails Google
bard will look through your inbox and
summarize your unread emails moving over
to large language models don't forget
that llms are also a subset of deep
learning and although there is some
overlap llms and geni are not the same
thing an important distinction is that
large language models are generally
pre-trained with a very large set of
data and then fine-tune for specific
purposes what does that mean imagine you
have a pet dog it can be pre-trained
with basic commands like sit come down
and stay it's a good boy and a
generalist but if that same good boy
goes on to become a police dog a guide
dog or hunting dog they need to receive
specific training so they're fine tuned
for that specialist role a similar idea
applies to large language models they're
first pre-trained to solve common
language problems like text
classification question answering
document summarization and text
generation then using smaller industry
specific data sets these llms are
fine-tuned to solve specific problems in
Retail Finance Healthcare entertainment
and other fields in the real world this
might mean a hospital uses a pre-trained
large language model from one of the big
tech companies and fine-tunes that model
with its own first-party medical data to
improve diagnostic accuracy from X-rays
and other medical tests this is a
win-win scenario because large companies
can spend billions developing general
purpose large language models then sell
those llms to smaller institutions like
retail companies Banks hospitals who
don't have the resources to develop
their own large language models but they
have the domain specific data sets to
fine-tune those models Pro tip if you do
end up taking the full course I'll link
it down below it's completely free when
you're taking notes you can right click
on the video player and copy video URL
at the current time so can quickly
navigate back to that specific part of
the video there are five modules total
and you get a badge after completing
each module the content overall is a bit
more on the theoretical side so you
definitely want to check out this video
on how to master prompting next see you
on the next video in the
meantime have a great one
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