Ignite Seoul: Machine Learning

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  • 1. How to detect porn and decide where to live usingMACHINE LEARNINGMICHAEL SHILMANmichael@shilman.net 1
  • 2. SCI-FI INSPIRES, TECHNOLOGY DELIVERS... Sci-Fi Technology2001: A Space Odyssey (1968) Infinity Blade for iPhone (2011)
  • 3. TECHNOLOGY DELIVERS... most of the timeTeleportationTime Travel HardwareTelekinesisArtificial Intelligence (AI) Software AI is the last big software problem left ...and has been largely a failure so far.
  • 4. 1960-70’s: CONCEPTS Basic Theory Demos Viterbi Decoding (1967) Sutherland’s Sketchpad (1968)
  • 5. 1980’s: MODELING THE BRAIN Neuron Expert Neural Network Expert System
  • 6. ENTER MACHINE LEARNING Machine Learning is the study of computer algorithms that improve automatically through experience. Tom Mitchell, Machine Learning (1997)
  • 7. BASIC MACHINE LEARNINGObservations X Learn f(x) = yLabels Y Y = gender MaleFemale X = height
  • 8. REAL-WORLD MACHINE LEARNINGObservations X Y - 100’s of labels X - 1000’s of featuresLabels Y N - Millions of examples ? - Not all data is labeled ? - Some data is mis-labeled f(x) = y Model spatial context Model temporal context
  • 9. 1990’s: MACHINE LEARNING BASICS Speech Handwriting OCR
  • 10. 2000’s: BIG DATA Web Search Collaborative Filtering Porn Detection
  • 11. 2011: PUTTING IT ALL TOGETHER Modeling the Brain (1980’s) + = Machine Learning Basics (1990’s) + Big Data (2000’s) Apple’s Siri (2011)
  • 12. SIRI TEARDOWN
  • 13. SIRI TEARDOWN f u u d a e i o u “food”Waveform Input Broken into Each Chunk is Find the most likely Little Chunks a phoneme paths through the X(t) Y(t) phonemes that match a words from the dictionary
  • 14. SIRI TEARDOWN “what would you like to eat?” dialog “bet me food” “get me food”Find the most likely Find the most Execute a query Speak the result to paths through the likely sentences based on the most the user words that make that match the likely sentencegrammatical sense context
  • 15. SCI-FI INSPIRES, TECHNOLOGY DELIVERS? Sci-Fi Technology2001: A Space Odyssey (1968) Apple’s Siri (2011)
  • 16. TECHNOLOGY DELIVERS? TIME WILL TELL Good Bad Ugly http://siriouslyweird.tumblr.com/
  • 17. WHAT’S NEXT? Modeling the Brain (1980’s) ??? ??? +Machine Learning Basics (1990’s) ??? ??? ??? ??? + Big Data (2000’s)
  • 18. WHAT’S NEXT ... BIG DECISIONS What to Buy? Where to Live? Who to Marry?
  • 19. WHAT’S NEXT ... HUMAN STEERING
  • 20. WHAT’S NEXT? NEED MORE SCI-FI! Sci-Fi Technology ??? ??? ?????? ??? ???