Unsupervised Learning

• Unsupervised learning system models oftenDO NOT match our models

• Classify new text examples

  • Once upon a time, there were 3 bears (BEG)
  • The 3 bears lived in a big house. (MID)
  • They all stayed in the house happily ever after. (END)

• The system will decide …

  • Class 1 (matching ‘once’, ‘upon’, ‘time’, ‘there’)
  • Class 3 (matching ‘lived’)
  • Class 3 (matching ‘happily’, ‘ever’, ‘after’)

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