Can learning machines save us?
The long answer is YES - provided we remain smarter. Before i tell you how, let me give you some insight into learning machines.
The
ultimate machine learning dream - to make a human like machine.
Machines
either know or don’t. You could call it binary thinking. This is what used to
be though. Like humans, machines now have a new dimension to their mechanism. It’s
the dimension called ‘samay’ (means 'time' in Sanskrit). This is helping them
learn specially to identify patterns that humans can’t see.
By
definition, a machine that gets better at performing a task with experience is
called a learning machine. I would think ‘experience’ is at the least equal to
‘time’ spent in performing that task. For discussions sake let’s say Roger
Federer became a champion by spending ten thousand hours of playing tennis (I won’t argue with the
idea of it being his destiny). This obviously excludes the times he thought
about the game which can potentially be his current age in hours. In absolute
terms ten thousand hours would translate to 417 days or, 1 year 1 month 3 weeks
and 1 day.
I would
imagine Roger to have reached this mark in several years including times of
injury, puberty, binging on fries and coke while watching Pete Sampras win a
Wimbledon final followed by an upset stomach spoiling next day’s training, to
name a few.
A
learning machine however, could reach this mark in exactly 417 days. Could the
machine have done the thinking about the game? - totally depends on the computers RAM. Jokes apart, machines
can become very smart at a much faster rate than humans, but, on limited number of tasks.
What
makes this possible? - the goal of neural networks is to make a machine
algorithm think like a human brain. i.e., process layers of input information
to produce a probability towards a decision followed by choosing the option
with a higher probability. The choice is then compared to a training dataset that makes corrections to achieve desired accuracy levels. It's a lot like neurons in our brain receiving
information from our senses and combining that with memory of past experiences to arrive at a decision leading to an action.
The brain
is a network of complex algorithms which can over time learn to process any
form of information. Just like, if you train the Auditory Cortex of the brain
to see, it will learn and adapt to see. All you have to do is temporarily move
the connection to the Auditory Cortex from your ears to perhaps an external
camera. Much like what’s happening below:
Except
here the attempt is to see through your tongue.
It’s an
established fact that machines have a significantly more reliable memory and
are better in identifying patterns than an average human. This machine skill combined with the power to learn
is revolutionizing how many of us live.
For
example, Gmail classifies emails between primary, promotional and spam with a
learning logistic regression algorithm. Similarly, auto suggestions made by
google search, product suggestion on Amazon and song recommendations on Spotify
are personalization that most of us have enjoyed.
Who is
missing out? - Eritria, Niger, Chad and Madagascar together have a poorer internet penetration than Afghanistan. Note that North Korea is not a part of this
comparison as all their usage probably happens through one person’s 57 inch
iMac, an outlier that we can't consider.
On the
brighter side, according to forecasts by eMarketer, by 2021 ~ 54% of the world would be
connected to the internet (4.13 Billion) as compared to 47% at present (3.47
Billion) and this increase is expected to be driven by mobile device
penetration in low-income countries across Africa and Asia Pacific. This should
be supported by improved infrastructure for high speed internet allowing penetration
of personalization through machine learning.
There are
several innovations coming up in the field of development that are solving
problems for large groups, sub regions or even entire countries. Saving lives
by providing timely flood risk warnings in Togo, creative usage of drones, the
cloud and television channel frequencies for precision farming techniques are
some such examples. These advances are definitely preparing us to meet challenges
from climate change to food security.
If so far, its sounded as if I have given all
the credit to machines, let me assure you that in this case the chicken
definitely came first. After all, it is the effort of a global network of
scientists, engineers, social entrepreneurs and
businesses that have united to make it all possible for
profit and non-profit. Critics remain skeptical and there are innumerable doomsday
stories based on AI, some my favorite, but I truly hope the chicken came
first story remains popular forever. I also hope that we succeed in healthy
co-existence by leveraging machine learning to predict and prepare for
ever-growing demands and risks to human existence.

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