Beyond Data — Investigative Data Journalist

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  • What Universal Optmization Works Best? No-Free-Lunch Theorem

    There are hundreds, if not thousands, of algorithms and statistical methods. When I first started in this field, the first method I tried in every single dataset was K-means. It was my go-to algorithm.

    MAR 25 SERGIO FETTER

  • What is Bias and Variance Tradeoff

    You don't want the model to over- or under-fit. You have to strive to find the right balance between the two. That is the bias-variance tradeoff.

    MAR 09 SERGIO FETTER