Definition of machine learning

Field of study that gives computers the ability to learn without explicit programmed. Arthur Samuel(1959)

Machine Learning Algorithms

• Supervised learning

  • Supervised learning used most in real-world applications
  • Rapid advancements
  • Input X and output Y, x to y mapping
  • Learns from being given “right answers”

• Unsupervised learning

  • Find something interesting in unlabeled data.
  • Clustering is one of the unsupervised learning methods.
  • Definition: Data only comes with inputs x, but not output labels y. Algorithm has to find structure in the data.
  • Anomaly detection. To find unusual data points.
  • Dimensionality reduction. Compress data using fewer numbers.

• Practical advise for applying learning algorithms is important