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Algorithm selection

🌳 Which Machine Learning algorithm should you choose? Choosing the right ML algorithm isn’t always straightforward.

This KDnuggets article proposes a very visual approach: using a decision tree to guide the selection process based on the type of problem and the data available.

Key points of the approach:

Define your primary goal

  • Do you want to classify, predict numeric values, cluster, or reduce dimensionality?
  • The nature of the problem determines the initial branch of the tree.

Consider the size and type of data

  • A small amount of structured data → classic algorithms like Logistic Regression or SVM.
  • Lots of data or unstructured data → more complex models like Random Forest, XGBoost, or Neural Networks.

Weigh interpretability vs. accuracy

  • If you need to explain decisions (e.g., in finance or healthcare), decision trees and linear models are clearer.
  • If you’re aiming for maximum accuracy and can sacrifice explainability, choose ensembles or deep learning.

Iterate and validate

  • Even with a good guide tree, testing multiple models and evaluating with cross-validation remains best practice.

💡 A decision tree for choosing algorithms doesn’t replace experimentation, but it speeds up focusing on the most promising options.

More information at the link 👇

Also published on LinkedIn.
Juan Pedro Bretti Mandarano
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Juan Pedro Bretti Mandarano