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Datacamp

Machine Learning with caret in R

via Datacamp

Overview

This course teaches the big ideas in machine learning like how to build and evaluate predictive models.

Machine learning is the study and application of algorithms that learn from and make predictions on data. From search results to self-driving cars, it has manifested itself in all areas of our lives and is one of the most exciting and fast growing fields of research in the world of data science. This course teaches the big ideas in machine learning: how to build and evaluate predictive models, how to tune them for optimal performance, how to preprocess data for better results, and much more. The popular caret R package, which provides a consistent interface to all of R's most powerful machine learning facilities, is used throughout the course.

Syllabus

Regression models: fitting them and evaluating their performance
-In the first chapter of this course, you'll fit regression models with train() and evaluate their out-of-sample performance using cross-validation and root-mean-square error (RMSE).

Classification models: fitting them and evaluating their performance
-In this chapter, you'll fit classification models with train() and evaluate their out-of-sample performance using cross-validation and area under the curve (AUC).

Tuning model parameters to improve performance
-In this chapter, you will use the train() function to tweak model parameters through cross-validation and grid search.

Preprocessing your data
-In this chapter, you will practice using train() to preprocess data before fitting models, improving your ability to making accurate predictions.

Selecting models: a case study in churn prediction
-In the final chapter of this course, you'll learn how to use resamples() to compare multiple models and select (or ensemble) the best one(s).

Taught by

Zachary Deane-Mayer and Max Kuhn

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