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Details for:
Galli S. Feature Selection in Machine Learning with Python...2022
galli s feature selection machine learning python 2022
Type:
E-books
Files:
1
Size:
6.1 MB
Uploaded On:
Oct. 29, 2022, 3:08 p.m.
Added By:
andryold1
Seeders:
4
Leechers:
0
Info Hash:
20D614EC9B64E081F2122B80EC7FBB363B55B1AB
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Textbook in PDF format Learn how to implement various feature selection methods in a few lines of code and train faster, simpler, and more reliable Machine Learning models. Using Python open-source libraries, you will learn how to find the most predictive features from your data through filter, wrapper, embedded, and additional feature selection methods. Feature selection is the process of selecting a subset of features from the total variables in a data set to train Machine Learning algorithms. Feature selection is an important aspect of data mining and predictive modelling. Feature selection is key for developing simpler, faster, and highly performant Machine Learning models and can help to avoid overfitting. The aim of any feature selection algorithm is to create classifiers or regression models that run faster and whose outputs are easier to understand by their users. In this book, you will find the most widely used feature selection methods to select the best subsets of predictor variables from your data. You will learn about filter, wrapper, and embedded methods for feature selection. Then, you will discover methods designed by computer science professionals or used in data science competitions that are faster or more scalable. First, we will discuss the use of statistical and univariate algorithms in the context of Artificial Intelligence (AI). Next, we will cover methods that select features through optimization of the model performance. We will move on to feature selection algorithms that are baked into the machine learning techniques. And finally, we will discuss additional methods designed by data scientists specifically for applied predictive modeling. In this book, you will find out how to Remove useless and redundant features by examining variability and correlation. Choose features based on statistical tests such as ANOVA, chi-square, and mutual information. Select features by using Lasso regularization or decision tree based feature importance, which are embedded in the machine learning modeling process. Select features by recursive feature elimination, addition, or value permutation. Each chapter fleshes out various methods for feature selection that share common characteristics. First, you will learn the fundamentals of the feature selection method, and next you will find a Python implementation. The book comes with an accompanying Github repository with the full source code that you can download, modify, and use in your own data science projects and case studies. Feature selection methods differ from dimensionality reduction methods in that feature selection techniques do not alter the original representation of the variables, but merely select a reduced number of features from the training data that produce performant machine learning models. Using the Python libraries Scikit-learn, MLXtend, and Feature-engine, you’ll learn how to select the best numerical and categorical features for regression and classification models in just a few lines of code. You will also learn how to make feature selection part of your machine learning workflow
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Galli S. Feature Selection in Machine Learning with Python...2022.pdf
6.1 MB
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