THE REINSURANCE ACTUARY
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This page contains links to my notes of a series of blog posts during which I attempted to understand Machine Learning. I've collated all the posts to date below:

Section 1 - Kaggle Titanic competition - posts 1 - 5
Topics covered: Classification, pivot tables, Random Forests, features importance, k-fold cross validation, hyper-parameter turning
  • Post 1 - An Actuary learns Machine Learning – Part 1 – Kaggle/Titanic/Excel
 www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-1-kaggletitanicexcel

  • Post 2 - An Actuary learns Machine Learning – Part 2 – Spyder/Random Forest/Hyper-Parameters
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-2-spyderrandom-foresthyper-parameters

  • Post 3 - An Actuary learns Machine Learning – Part 3 – Automatic testing/feature importance/K-fold cross validation
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-3-automatic-testingfeature-importancek-fold-cross-validation

  • Post 4 - An Actuary learns Machine Learning – Part 4 – Error correction/data cleansing/Feature Engineering
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-4-errors-correctiondata-cleansingfeature-engineering

  • Post 5 - An Actuary learns Machine Learning – Part 5 – lots of machine learning models
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-5-lots-of-machine-learning-models
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Section 2 - Kaggle Ames House Price competition - posts 6 - 10
Topics covered: Regression, Random Forests, Jupyter, data cleansing, label encoding, Gradient Boosted Regressor

  • Post 6 - An Actuary learns Machine Learning - Part 6 - Jupyter/Regression/Kaggle house prices
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-6-jupyterregressionkaggle-house-prices

  • Post 7 - An Actuary learns Machine Learning - Part 7 - Sub-plots /Null Values/ Random Forests
​www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-7-sub-plots-null-values-random-forests

  • Post 8 - An Actuary learns Machine Learning - Part 8 - Data Cleaning / more Null Values / more Random Forests
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-8-data-cleaning-more-null-values-more-random-forests

  • Post 9 - An Actuary learns Machine Learning - Part 9 - Cross Validation / Label Encoding / Feature Engineering
www.lewiswalsh.net/blog/an-actuary-learns-machine-learning-part-9-cross-validation-label-encoding-feature-engineering

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