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  • Computer algorithms today are performing incredible tasks

  • with high accuracies, at a massive scale, using human-like intelligence.

  • And this intelligence of computers is often referred to as AI

  • or artificial intelligence.

  • AI is poised to make an incredible impact on our lives in the future.

  • Today, however, we still face massive challenges

  • in detecting and diagnosing several life-threatening illnesses,

  • such as infectious diseases and cancer.

  • Thousands of patients every year

  • lose their lives due to liver and oral cancer.

  • Our best way to help these patients

  • is to perform early detection and diagnoses of these diseases.

  • So how do we detect these diseases today, and can artificial intelligence help?

  • In patients who, unfortunately, are suspected of these diseases,

  • an expert physician first orders

  • very expensive medical imaging technologies

  • such as fluorescent imaging, CTs, MRIs, to be performed.

  • Once those images are collected,

  • another expert physician then diagnoses those images and talks to the patient.

  • As you can see, this is a very resource-intensive process,

  • requiring both expert physicians, expensive medical imaging technologies,

  • and is not considered practical for the developing world.

  • And in fact, in many industrialized nations, as well.

  • So, can we solve this problem using artificial intelligence?

  • Today, if I were to use traditional artificial intelligence architectures

  • to solve this problem,

  • I would require 10,000 --

  • I repeat, on an order of 10,000 of these very expensive medical images

  • first to be generated.

  • After that, I would then go to an expert physician,

  • who would then analyze those images for me.

  • And using those two pieces of information,

  • I can train a standard deep neural network or a deep learning network

  • to provide patient's diagnosis.

  • Similar to the first approach,

  • traditional artificial intelligence approaches

  • suffer from the same problem.

  • Large amounts of data, expert physicians and expert medical imaging technologies.

  • So, can we invent more scalable, effective

  • and more valuable artificial intelligence architectures

  • to solve these very important problems facing us today?

  • And this is exactly what my group at MIT Media Lab does.

  • We have invented a variety of unorthodox AI architectures

  • to solve some of the most important challenges facing us today

  • in medical imaging and clinical trials.

  • In the example I shared with you today, we had two goals.

  • Our first goal was to reduce the number of images

  • required to train artificial intelligence algorithms.

  • Our second goal -- we were more ambitious,

  • we wanted to reduce the use of expensive medical imaging technologies

  • to screen patients.

  • So how did we do it?

  • For our first goal,

  • instead of starting with tens and thousands

  • of these very expensive medical images, like traditional AI,

  • we started with a single medical image.

  • From this image, my team and I figured out a very clever way

  • to extract billions of information packets.

  • These information packets included colors, pixels, geometry

  • and rendering of the disease on the medical image.

  • In a sense, we converted one image into billions of training data points,

  • massively reducing the amount of data needed for training.

  • For our second goal,

  • to reduce the use of expensive medical imaging technologies to screen patients,

  • we started with a standard, white light photograph,

  • acquired either from a DSLR camera or a mobile phone, for the patient.

  • Then remember those billions of information packets?

  • We overlaid those from the medical image onto this image,

  • creating something that we call a composite image.

  • Much to our surprise, we only required 50 --

  • I repeat, only 50 --

  • of these composite images to train our algorithms to high efficiencies.

  • To summarize our approach,

  • instead of using 10,000 very expensive medical images,

  • we can now train the AI algorithms in an unorthodox way,

  • using only 50 of these high-resolution, but standard photographs,

  • acquired from DSLR cameras and mobile phones,

  • and provide diagnosis.

  • More importantly,

  • our algorithms can accept, in the future and even right now,

  • some very simple, white light photographs from the patient,

  • instead of expensive medical imaging technologies.

  • I believe that we are poised to enter an era

  • where artificial intelligence

  • is going to make an incredible impact on our future.

  • And I think that thinking about traditional AI,

  • which is data-rich but application-poor,

  • we should also continue thinking

  • about unorthodox artificial intelligence architectures,

  • which can accept small amounts of data

  • and solve some of the most important problems facing us today,

  • especially in health care.

  • Thank you very much.

  • (Applause)

Computer algorithms today are performing incredible tasks

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