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Skynet is coming!

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deepakazad

Yes, it really is! Computer scientists around the world are teaching machines how to learn, how to think. You already use machines that are pretty smart, e.g. your camera which recognizes faces, your phone that you can converse with. Soon, you will be using a car which drives by itself. Come to this fun (and no-math-involved) talk to understand how these cool technologies work, and where all this is taking us. I promise several Wow, this is amazing moments!

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Skynet is coming! Deepak Azad M.Sc. Student, Computer Science Junior Fellows Speaker Series St. Johns College UBC Image: http://www.itweapons.com/tedblog/wp-content/uploads/2010/07/skynet.jpg Feb 19, 2013
Wait What is Skynet? Image: http://www.coverbrowser.com/image/bestselling-movies- 2006/1498-1.jpg
Overview Do we know how we think? Machines that can think How do they work? Implications for mankind
Do we know how we see? airplane.mov http://www.youtube.com/watch?v=ubNF9QNEQLA Image: http://bibledaily.files.wordpress.com/2011/07/eye.jpg
Do we know how we think? The doctor has good news and bad news Bad news: You have tested positive for HIV, and that the test is 99% accurate (i.e., the probability of testing positive given that you have the disease is 0.99, as is the probability of testing negative given that you dont have the disease). Good news: Only 1 in 10,000 people are HIV- Image:http://images.sodahead.com/polls/001 878683/4411521534_thinking20web20pic_ans positive wer_3_xlarge.jpeg How worried should you be?
Do we know how we think? I have some money in my pocket and I will give $100 to the person(s) who ask the best question(s), as judged by me. How many of you think that someone here will get $100? Image:http://greatlakescustomslaw.com/wp-content/uploads/2012/08/pocket-full-of-money.jpg
Lets do the math Let's say 1,000,000 people took the test. Number of people who have the disease = 100 (Remember 1 in 10,000) Number of people who tested positive AND who have the disease = 0.99 * 100 = 99 Number of people who tested positive BUT did not have the disease = 0.01 * 999900 = 9999 Probability that you actually have the disease = 99 / (99+9999) = 0.0098 Only 0.98% http://womenonthefence.com/wp- content/uploads/2009/12/DontWorryBeHappy.jpg
When should you worry? Let's say you underwent another test which is also 99% accurate and you tested positive. = 49.5% http://drmichaelroth.files.wordpress.com/20 12/04/worry.gif
If all your friends jumped off a bridge http://xkcd.com/1170/
Lesson posterior = likelihood x prior or new knowledge = data x old knowledge This is known as Bayes rule http://skepticism-images.s3-website-us-east- 1.amazonaws.com/images/jreviews/Thomas_ Bayes.jpg
Skynet is coming!
Lessons We only ever see a tiny bit We are pretty good at learning from data We can recognize patterns quite well
Autonomous Car https://www.youtube.com/watch?v=cdgQpa1pUUE
Face Recognition
Pedestrian detection https://www.youtube.com/watch?v=H_wMyUEeIzQ
Twitter Sentiment Analysis http://www.sentiment140.com/search?hl=en&query=Toronto %20Maple%20leafs http://www.sentiment140.com/search?hl=en&query=Vancou ver%20Canucks http://www.sentiment140.com/search?hl=en&query=Calgary %20flames
Microsoft Kinect http://boygeniusreport.files.wordpress.com/2011/11/kinect-family- tv.jpg?w=942 http://cdn.pocket-lint.com/images/wqZT/harry-potter-microsoft- kinect-xbox-360-1.jpg?20110712-094919
Google Glass https://www.youtube.com/watch?v=JSnB06um5r4
Skynet is coming!
How does all this work ? Temperature Hours of Sun
Formally Equation of line :
A little more complicated Temperature Hours of Sun
Using prior knowledge and dealing with uncertanity
Watson playing Jeapordy Images: http://hypervocal.wpengine.netdna-cdn.com/wp- content/uploads/2011/02/IMG_4219.jpg http://www.asesoriae.mx/wp-content/uploads/2012/01/jeopardy12_full.jpg
Implications: Will machines take over? Images: http://img259.imageshack.us/img259/5900/wallecaptainmccreaauto.jpg http://www.604republic.com/gocms/wp- content/uploads/2012/11/halglados1.jpg http://www.ameinfo.com/images/news/3/7853-iRobot.jpg
Implications: Will we need to work? Image: http://culturemediasociety.files.wordpress.com/2012/10/wall-e.png?w=625
Ethics and Morality Doctors and Insurance companies use the same tools one to cure and one to deny insurance Should people be allowed to drive? Peoples freedom vs reliable machines
Skynet is coming!
Skynet is coming!
Skynet is coming!

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Skynet is coming!

  • 1. Skynet is coming! Deepak Azad M.Sc. Student, Computer Science Junior Fellows Speaker Series St. Johns College UBC Image: http://www.itweapons.com/tedblog/wp-content/uploads/2010/07/skynet.jpg Feb 19, 2013
  • 2. Wait What is Skynet? Image: http://www.coverbrowser.com/image/bestselling-movies- 2006/1498-1.jpg
  • 3. Overview Do we know how we think? Machines that can think How do they work? Implications for mankind
  • 4. Do we know how we see? airplane.mov http://www.youtube.com/watch?v=ubNF9QNEQLA Image: http://bibledaily.files.wordpress.com/2011/07/eye.jpg
  • 5. Do we know how we think? The doctor has good news and bad news Bad news: You have tested positive for HIV, and that the test is 99% accurate (i.e., the probability of testing positive given that you have the disease is 0.99, as is the probability of testing negative given that you dont have the disease). Good news: Only 1 in 10,000 people are HIV- Image:http://images.sodahead.com/polls/001 878683/4411521534_thinking20web20pic_ans positive wer_3_xlarge.jpeg How worried should you be?
  • 6. Do we know how we think? I have some money in my pocket and I will give $100 to the person(s) who ask the best question(s), as judged by me. How many of you think that someone here will get $100? Image:http://greatlakescustomslaw.com/wp-content/uploads/2012/08/pocket-full-of-money.jpg
  • 7. Lets do the math Let's say 1,000,000 people took the test. Number of people who have the disease = 100 (Remember 1 in 10,000) Number of people who tested positive AND who have the disease = 0.99 * 100 = 99 Number of people who tested positive BUT did not have the disease = 0.01 * 999900 = 9999 Probability that you actually have the disease = 99 / (99+9999) = 0.0098 Only 0.98% http://womenonthefence.com/wp- content/uploads/2009/12/DontWorryBeHappy.jpg
  • 8. When should you worry? Let's say you underwent another test which is also 99% accurate and you tested positive. = 49.5% http://drmichaelroth.files.wordpress.com/20 12/04/worry.gif
  • 9. If all your friends jumped off a bridge http://xkcd.com/1170/
  • 10. Lesson posterior = likelihood x prior or new knowledge = data x old knowledge This is known as Bayes rule http://skepticism-images.s3-website-us-east- 1.amazonaws.com/images/jreviews/Thomas_ Bayes.jpg
  • 12. Lessons We only ever see a tiny bit We are pretty good at learning from data We can recognize patterns quite well
  • 16. Twitter Sentiment Analysis http://www.sentiment140.com/search?hl=en&query=Toronto %20Maple%20leafs http://www.sentiment140.com/search?hl=en&query=Vancou ver%20Canucks http://www.sentiment140.com/search?hl=en&query=Calgary %20flames
  • 20. How does all this work ? Temperature Hours of Sun
  • 22. A little more complicated Temperature Hours of Sun
  • 23. Using prior knowledge and dealing with uncertanity
  • 24. Watson playing Jeapordy Images: http://hypervocal.wpengine.netdna-cdn.com/wp- content/uploads/2011/02/IMG_4219.jpg http://www.asesoriae.mx/wp-content/uploads/2012/01/jeopardy12_full.jpg
  • 25. Implications: Will machines take over? Images: http://img259.imageshack.us/img259/5900/wallecaptainmccreaauto.jpg http://www.604republic.com/gocms/wp- content/uploads/2012/11/halglados1.jpg http://www.ameinfo.com/images/news/3/7853-iRobot.jpg
  • 26. Implications: Will we need to work? Image: http://culturemediasociety.files.wordpress.com/2012/10/wall-e.png?w=625
  • 27. Ethics and Morality Doctors and Insurance companies use the same tools one to cure and one to deny insurance Should people be allowed to drive? Peoples freedom vs reliable machines