Difference between revisions of "10-601 K-NN And Trees - Lecture from Fall 2013"

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This a lecture used in the [[Syllabus for Machine Learning 10-601]]
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This a lecture used in the [[Syllabus for Machine Learning 10-601 in Fall 2013]]
  
 
=== Slides ===
 
=== Slides ===
  
* [http://www.cs.cmu.edu/~wcohen/10-601/decision-trees.pptx Slides in Powerpoint].
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* [http://www.cs.cmu.edu/~wcohen/10-601/classification-and-decision-trees.pptx Slides in Powerpoint].
  
 
=== Readings ===
 
=== Readings ===
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=== What You Should Know Afterward ===
 
=== What You Should Know Afterward ===
  
* TBD
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* What is the goal of classification
 +
* Bayes decision boundary for classification
 +
* Is there an optimal classifier?
 +
* What the K-NN algorithm is.
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* What the computational properties of eager vs lazy learning are in general, and K-NN in specific.
 +
* What decision boundary is defined by K-NN, and how it compares to decision boundaries of linear classifiers.
 +
* How the value of K affects the tendency of K-NN to overfit or underfit data.
 +
* (optional) probabilistic interpretation of KNN decisions

Latest revision as of 13:19, 15 August 2014

This a lecture used in the Syllabus for Machine Learning 10-601 in Fall 2013

Slides

Readings

  • Mitchell, Chapter 3.

What You Should Know Afterward

  • What is the goal of classification
  • Bayes decision boundary for classification
  • Is there an optimal classifier?
  • What the K-NN algorithm is.
  • What the computational properties of eager vs lazy learning are in general, and K-NN in specific.
  • What decision boundary is defined by K-NN, and how it compares to decision boundaries of linear classifiers.
  • How the value of K affects the tendency of K-NN to overfit or underfit data.
  • (optional) probabilistic interpretation of KNN decisions