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What is Machine Learning?

“A computer program is said to learn from experience E with respect to some class of tasks T and performance measure P, if its performance at tasks in T, as measured by P, improves with experience E.” by Tom Mitchell


supervised/unsupervised learnign

  • Supervised Learning : article
    • Regression Problems: Predict continuous valued output
    • Classification Problems: Discrete valued optput
  • Unsupervised Learning : article
    • Clustering Problems:

      EX: Organize computing clusters、Social network analysis、Market segmentation、 Astronomical data analysis

    • Cocktail party problem:

      Cocktail party problem algorithm: Octave

      [W,s,v] = svd((repmat(sum(x.*x,1),size(x,1),1).*x)*x')