What assumptions does naive Bayes make? How would you craft a spam detection algorithm with NB? How would you improve it?

Data Science Interview Questions › Category: Data Science › What assumptions does naive Bayes make? How would you craft a spam detection algorithm with NB? How would you improve it?
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MockInterview Staff asked 6 years ago
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MockInterview Staff answered 6 years ago
  • Naïve: the features are assumed independent/uncorrelated
  • Assumption not feasible in many cases
  • Improvement: decorrelate features (covariance matrix into identity matrix)

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