nov 5

midterm projects

• alec - "notable neighbors"
  • http://www.geocities.com/Heartland/Plains/4484/lp9702.htm
  • with snark logic engine
  • not done yet

• richard -
  • prolog, textbook "west missles" problem

• abe
  • snark engine
  • hat guessing problem
  • not done yet

• ryon
  • einstein problem http://www.davar.net/MATH/PROBLEMS/EINSTEIN.HTM
  • probably snark
  • not done yet

• isaac
  • implementation of CNF and resolution in FOL in Haskell

• Liz
  • paper on circuit agents

• Ben
  • opencyc exploration ... coming

• patrick
  • not here

finish bayes discussion

• Jim's simple (but overblown) example in lisp (see attached)

text classification (i.e. spam filters)

• http://en.wikipedia.org/wiki/Naive_Bayes_classifier
  • Richard: tracing in lisp
  • outline text classification algorithm
  • caveats
    • bayes for P(spam|word_x) is commonly
    • ... but many ways to combine these are used in practice
    • ... not to mention variety of other real-world issues such as
      • words that are appear infrequently, or in one classification but not other
      • header and subject line

attachments

name last modified size

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bayes.lisp Nov 5 2007 12:58 pm 6.55kB