0:00:01.280,0:00:05.136 Computer algorithms today[br]are performing incredible tasks 0:00:05.160,0:00:09.896 with high accuracies, at a massive scale,[br]using human-like intelligence. 0:00:09.920,0:00:13.856 And this intelligence of computers[br]is often referred to as AI 0:00:13.880,0:00:15.736 or artificial intelligence. 0:00:15.760,0:00:19.960 AI is poised to make an incredible impact[br]on our lives in the future. 0:00:20.880,0:00:24.816 Today, however,[br]we still face massive challenges 0:00:24.840,0:00:28.336 in detecting and diagnosing[br]several life-threatening illnesses, 0:00:28.360,0:00:30.720 such as infectious diseases and cancer. 0:00:32.000,0:00:34.296 Thousands of patients every year 0:00:34.320,0:00:37.120 lose their lives[br]due to liver and oral cancer. 0:00:37.880,0:00:40.576 Our best way to help these patients 0:00:40.600,0:00:44.920 is to perform early detection[br]and diagnoses of these diseases. 0:00:45.880,0:00:50.040 So how do we detect these diseases today,[br]and can artificial intelligence help? 0:00:51.920,0:00:55.576 In patients who, unfortunately,[br]are suspected of these diseases, 0:00:55.600,0:00:58.256 an expert physician first orders 0:00:58.280,0:01:00.896 very expensive[br]medical imaging technologies 0:01:00.920,0:01:05.016 such as fluorescent imaging,[br]CTs, MRIs, to be performed. 0:01:05.040,0:01:07.336 Once those images are collected, 0:01:07.360,0:01:11.880 another expert physician then diagnoses[br]those images and talks to the patient. 0:01:12.520,0:01:15.976 As you can see, this is[br]a very resource-intensive process, 0:01:16.000,0:01:20.416 requiring both expert physicians,[br]expensive medical imaging technologies, 0:01:20.440,0:01:23.536 and is not considered practical[br]for the developing world. 0:01:23.560,0:01:26.920 And in fact, in many[br]industrialized nations, as well. 0:01:27.760,0:01:30.640 So, can we solve this problem[br]using artificial intelligence? 0:01:31.840,0:01:35.896 Today, if I were to use traditional[br]artificial intelligence architectures 0:01:35.920,0:01:37.136 to solve this problem, 0:01:37.160,0:01:38.616 I would require 10,000 -- 0:01:38.640,0:01:42.656 I repeat, on an order of 10,000[br]of these very expensive medical images 0:01:42.680,0:01:44.056 first to be generated. 0:01:44.080,0:01:46.976 After that, I would then go[br]to an expert physician, 0:01:47.000,0:01:49.496 who would then analyze[br]those images for me. 0:01:49.520,0:01:51.616 And using those two pieces of information, 0:01:51.640,0:01:55.296 I can train a standard deep neural network[br]or a deep learning network 0:01:55.320,0:01:57.456 to provide patient's diagnosis. 0:01:57.480,0:01:59.216 Similar to the first approach, 0:01:59.240,0:02:01.383 traditional artificial[br]intelligence approaches 0:02:01.407,0:02:02.856 suffer from the same problem. 0:02:02.880,0:02:07.440 Large amounts of data, expert physicians[br]and expert medical imaging technologies. 0:02:08.320,0:02:12.616 So, can we invent more scalable, effective 0:02:12.640,0:02:15.936 and more valuable artificial[br]intelligence architectures 0:02:15.960,0:02:19.016 to solve these very important[br]problems facing us today? 0:02:19.040,0:02:22.336 And this is exactly[br]what my group at MIT Media Lab does. 0:02:22.360,0:02:26.216 We have invented a variety[br]of unorthodox AI architectures 0:02:26.240,0:02:29.416 to solve some of the most important[br]challenges facing us today 0:02:29.440,0:02:31.640 in medical imaging and clinical trials. 0:02:32.480,0:02:35.536 In the example I shared[br]with you today, we had two goals. 0:02:35.560,0:02:38.536 Our first goal was to reduce[br]the number of images 0:02:38.560,0:02:41.816 required to train[br]artificial intelligence algorithms. 0:02:41.840,0:02:43.936 Our second goal -- we were more ambitious, 0:02:43.960,0:02:47.696 we wanted to reduce the use[br]of expensive medical imaging technologies 0:02:47.720,0:02:48.936 to screen patients. 0:02:48.960,0:02:50.160 So how did we do it? 0:02:50.920,0:02:52.136 For our first goal, 0:02:52.160,0:02:54.216 instead of starting[br]with tens and thousands 0:02:54.240,0:02:57.256 of these very expensive medical images,[br]like traditional AI, 0:02:57.280,0:02:59.336 we started with a single medical image. 0:02:59.360,0:03:03.136 From this image, my team and I[br]figured out a very clever way 0:03:03.160,0:03:05.896 to extract billions[br]of information packets. 0:03:05.920,0:03:09.616 These information packets[br]included colors, pixels, geometry 0:03:09.640,0:03:12.176 and rendering of the disease[br]on the medical image. 0:03:12.200,0:03:16.536 In a sense, we converted one image[br]into billions of training data points, 0:03:16.560,0:03:20.096 massively reducing the amount of data[br]needed for training. 0:03:20.120,0:03:21.336 For our second goal, 0:03:21.360,0:03:25.216 to reduce the use of expensive medical[br]imaging technologies to screen patients, 0:03:25.240,0:03:28.096 we started with a standard,[br]white light photograph, 0:03:28.120,0:03:32.456 acquired either from a DSLR camera[br]or a mobile phone, for the patient. 0:03:32.480,0:03:34.936 Then remember those[br]billions of information packets? 0:03:34.960,0:03:38.496 We overlaid those from[br]the medical image onto this image, 0:03:38.520,0:03:41.040 creating something[br]that we call a composite image. 0:03:41.480,0:03:44.776 Much to our surprise,[br]we only required 50 -- 0:03:44.800,0:03:46.136 I repeat, only 50 -- 0:03:46.160,0:03:50.000 of these composite images to train[br]our algorithms to high efficiencies. 0:03:50.680,0:03:52.016 To summarize our approach, 0:03:52.040,0:03:55.216 instead of using 10,000[br]very expensive medical images, 0:03:55.240,0:03:58.256 we can now train the AI algorithms[br]in an unorthodox way, 0:03:58.280,0:04:02.536 using only 50 of these high-resolution,[br]but standard photographs, 0:04:02.560,0:04:05.056 acquired from DSLR cameras[br]and mobile phones, 0:04:05.080,0:04:06.616 and provide diagnosis. 0:04:06.640,0:04:07.856 More importantly, 0:04:07.880,0:04:11.016 our algorithms can accept,[br]in the future and even right now, 0:04:11.040,0:04:13.856 some very simple, white light[br]photographs from the patient, 0:04:13.880,0:04:16.320 instead of expensive[br]medical imaging technologies. 0:04:17.120,0:04:20.216 I believe that we are poised[br]to enter an era 0:04:20.240,0:04:22.176 where artificial intelligence 0:04:22.200,0:04:24.736 is going to make an incredible[br]impact on our future. 0:04:24.760,0:04:27.216 And I think that thinking[br]about traditional AI, 0:04:27.240,0:04:30.016 which is data-rich but application-poor, 0:04:30.040,0:04:31.576 we should also continue thinking 0:04:31.600,0:04:34.616 about unorthodox artificial[br]intelligence architectures, 0:04:34.640,0:04:36.576 which can accept small amounts of data 0:04:36.600,0:04:39.536 and solve some of the most important[br]problems facing us today, 0:04:39.560,0:04:40.816 especially in health care. 0:04:40.840,0:04:42.056 Thank you very much. 0:04:42.080,0:04:45.920 (Applause)