What is Intelligence?
Well, before we
dive into what artificial intelligence is, I would like to start with the
definition of intelligence itself. Intelligence can be roughly
defined as learning, understanding, and using the knowledge learned, to achieve
one or more goals. So, think about when we're firstborn, as babies, we don’t know
very much, right? So, we have to start learning things. And we learn from our
parents, we learn from school, we learn from our friends, and we also learn
from trial and error, from experimenting with different things, to see what's
going to happen. So, as we're learning, we start to understand the world around
us, and the environment, more and more, and we make sense of it. And then we
use that knowledge learned to do things, whether those things have
conversations with our friends or figure out how to get to work every day, or
do the tasks that we need to do while we're working, right, we use the
knowledge learned all the time to do different things.
What Is Artificial Intelligence?
So, as a natural extension to the above, artificial intelligence is simply, intelligence exhibited by machines. So if we can get a machine to learn somehow, then to understand what is learned to do things, like, let's say, make a prediction, determine if an email is spam, determine whether or not there's a cat or a dog, in a picture, then one would say that's intelligence exhibited by machines. And you might hear the term artificial intelligence also called cognitive computing, machine intelligence, and so on. Those are all very valid terms as well, and sort of synonymous with artificial intelligence. So again, AI is intelligence exhibited by machines, which means learning, understanding, and then using that knowledge learned to do something.
Now, AI has a
history, that actually came from the 1950s as a concept, but it was largely
modeled originally around theories of how the brain works, and so the human
brain. And so, there's this history in neuroscience, psychology, and so on. But
it's also highly related to fields like computer science, mathematics, and
statistics because people have tried to replicate the ideas of how the human
brain works, using computer algorithms and code and mathematics. So, it's very
highly technical as well.
Classification
AI can be
thought of in terms of three broad categories, the first is artificial narrow
intelligence or ANI. The second one is the artificial general intelligence or
AGI. And the third is artificial superintelligence or ASI. In the first case,
artificial narrow intelligence also called weak AI, that's most of what we see
today. So, most AI today is sort of like a one-trick pony. You might train some
algorithms, some AI models, to do one thing, like make a prediction or make a
recommendation, something like that, but it can't do other things as well
necessarily. Nowadays, there's this thing called multitask learning. So, people
are working towards having the ability of AI to do multiple things at once. But
for the most part, AI today is very narrow and very so-called weak.
AGI, on the other hand, is this idea of AI that has the same intelligence as humans. So can
answer questions, understand things, comprehend things, and so on, as humans
do. Today, we're currently nowhere near that.
And then
finally, ASI, or artificial and superintelligence, is this idea of artificial
intelligence that exceeds human intelligence. And that's where you get into
these concepts of things, like the technological singularity. AI that just
becomes way smarter than humans to the point that it could get out of control
and completely start self-improving itself and turning. That's where a lot of
the killer robots and Terminator scenarios come into play. But again, we're
nowhere near, even artificial general intelligence, which is, again, the idea
of AI that's at the intelligence level of humans.
Is Artificial Intelligence Dangerous?
Most AI isn't in
fact even what a lot of people think it is. So, what I mean by that is, a lot
of times AI has this perception of being sort of self-improving,
self-regulating, self-guiding, self-learning, and then just keeps getting
smarter and smarter on its own, increasing its intelligence. In reality, most
types of artificial intelligence aren't in any way of self-learning,
self-guiding, self-improving.
There is one
area of AI called reinforcement learning, that would be the closest to that
concept where you have a certain kind of AI, there's this idea of an agent
that's existing in an environment. Think of video games, like a Pac-Man game.
You have Pac-Man and it's in an environment which is the board, the level that
you're on at the time. And Pac-Man is kind of going or Ms. Pac-Man, is going
around and trying to eat all the dots. So, it's trying to take different
actions and it gets points as a reward as if eating the dots.
And also,
whenever it eats the fruit and becomes invincible, that's sort of the state of
the game changes, because now the Ms. Pac-Man is invincible. It can eat ghosts,
and so on. And so even though humans normally are the ones playing Ms. Pac-Man
and controlling the joystick and moving around this sort of environment, think
of if AI can do something similar, but on its own. So basically, like trying
over and over to figure out the best way around to eat the dots, when to eat
the fruit, when to go after the ghosts, how to maximize the points, if that's
the ultimate goal because more points you get more lives, right? So that would
be sort of like reinforcement learning and this is the idea of the
self-improving, self-guiding type of AI.
The reality of Artificial Intelligence
But again, the vast
majority of AI is much simpler than that. It's not self-improving. Another
concept that's related to artificial intelligence is this idea of cognition and
cognitive functions. So, what is cognition?
Well, the Oxford Dictionary defines cognition as, "The mental action or process of
acquiring knowledge and understanding through thought, experiences, and the
senses." So, it's kind of similar to what we said about intelligence in
general, this idea of learning, understanding, and using the knowledge learned
to achieve one or more goals. And the part about the senses is really
interesting here because if you think about it with humans, we have all of
these different senses. We have, we can see things, we can taste things, smell
things, touch things, and so on. And when we do that, we get all this data
coming in through our nervous system. So, as we're sensing the world around us,
that data comes in through our nervous system and it's passed along through
these, what they call neural networks. And our brain, which is in a cavity
that's completely silent, and completely dark, receive these patterns of
signals coming through our nervous system, that results from this incoming data
through our senses. Well, artificial intelligence works similarly, when you're
training certain models.
You have input
data it flows through, and especially in the case of deep learning and neural
networks. And these networks learn things from these patterns and that learning
allows a model, to make a recommendation or predict something. Now, again,
going back to cognition, cognition is also associated with a lot of other
topics that we as humans are very familiar with, things like remembering,
memory, thought, thinking, awareness, understanding, apprehension, intuition,
attention, comprehension, and so on. These are all sort of commonplace. We
often don't even think of them as humans. But to get machines to mimic these
kinds of human cognitive functions and cognitive behaviors or functions of
cognition is very-very difficult. And that's a big part of the reason that
we're so far away from artificial general intelligence.
Even this idea
of understanding, is a very deep idea and it takes a lot more to understand
things, truly comprehend and understand things. Often when you don't have all
the context of all of the sort of information that you need, humans can fill in
those gaps and kind of derive an understanding of a situation, or something
that someone's saying to you. Even if you don't have all the details, you have
enough memory and information stored in your brain that you can kind of piece
things together, to have a pretty good sense of what's going on, in a way that
machines are nowhere near able to do. Another thing that's interesting in the
definition, "The mental action or process of acquiring knowledge and
understanding through thought, experience, and the senses," this idea of
understanding through thought is pretty interesting.
We as humans,
sometimes we learn certain things, or we have certain experiences in our lives,
and we're trying to make sense of it. And sometimes we just sit there and we
think through something for a while, we're trying to put pieces together, in
our mind. And by thinking of it, sometimes we have the moment and we go,
"Oh yeah, I get it now." Right. It's almost like we've learned
something new and understood something new completely on our own just by
thinking, by recalling different bits and pieces of information that we have
stored in our brain, piecing it together and creating new intelligence, new
learning, new understanding, and the ability to use that new understanding to
do something, right.
So, in our case,
again, we use our intelligence every day, whether it's carrying out the tasks
at our job, or dealing with issues with our families and friends, or dealing
with our health issues, or whatever it is, but that's super interesting. But
you know today, again, going back to this idea of the sort of narrow artificial
intelligence or weak AI, these models, you want to make a recommendation, you
want to predict something, you want to cluster things together and create
groups so that you can better market or target people through personalization
or whatever the case may be, but you very much are trying to accomplish one the specific goal with a certain AI sort of task. But the AI doesn't have the
ability to just kind of go outside the bounds of that and put things together
based on other domains or areas of knowledge or data or something like that.
It's very much dependent on the domain and the data that it's using related to
that domain at any given time for any given task. And so that's another one of
the areas where there is a big gap between sometimes what people think of as AI
and the reality of AI.
Conclusion
So, this was all
about Artificial Intelligence and the basics of what an AI is. I hope you
enjoyed reading it and understood what actually this technology refers to.
With this, I would like to wrap up the article and hope you are enjoying the
tech knowledge in the simplest way possible. Have a great day.
No comments:
Please let me know if you liked the post. Do share it with your friends