Getting Started with Gradient Boosting Algorithms
Chapter 1: Foundations of Ensemble Learning and Boosting
What are Ensemble Methods?
Bagging vs. Boosting
Introduction to the Boosting Principle
The AdaBoost Algorithm: A Precursor to Gradient Boosting
Understanding Weak Learners
Bias-Variance Tradeoff in Ensembles
Chapter 2: The Gradient Boosting Machine (GBM)
From Boosting to Gradient Boosting
The Role of Gradients and Residuals
The GBM Algorithm Step-by-Step
Loss Functions for Regression Tasks
Loss Functions for Classification Tasks
Hands-on Practical: Building a GBM with Python
Chapter 3: Implementing Gradient Boosting with Scikit-Learn
Scikit-Learn's GradientBoostingClassifier
Scikit-Learn's GradientBoostingRegressor
Fitting and Predicting with GBM Models
Interpreting Model Parameters
Feature Importance in GBM
Partial Dependence Plots for Model Interpretation
Hands-on Practical: Building a Predictive Model
Chapter 4: Advanced Gradient Boosting: XGBoost
Why XGBoost? Speed and Performance
Architectural Improvements over Standard GBM
Regularization in XGBoost (L1 and L2)
Handling Missing Values Automatically
Installing and Setting up XGBoost
The XGBoost API: A Walkthrough
Hands-on Practical: Training an XGBoost Model
Chapter 5: Advanced Gradient Boosting: LightGBM and CatBoost
Introduction to LightGBM: Gradient-based One-Side Sampling
LightGBM's Exclusive Feature Bundling
Introduction to CatBoost: Handling Categorical Features
CatBoost's Ordered Boosting and Symmetric Trees
Performance Comparison: XGBoost vs. LightGBM vs. CatBoost
Hands-on Practical: Implementing LightGBM and CatBoost
Chapter 6: Hyperparameter Tuning and Model Optimization
The Importance of Hyperparameter Tuning
Principal Hyperparameters in Gradient Boosting
Tuning the Number of Estimators and Learning Rate
Controlling Tree Complexity
Subsampling Parameters for Regularization
A Structured Approach to Tuning
Using Grid Search and Randomized Search
Hands-on Practical: Optimizing a Gradient Boosting Model
Installing and Setting up XGBoost
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- XGBoost Documentation, XGBoost Contributors, 2024 - Provides comprehensive installation guides, API descriptions, and examples for both Scikit-Learn and native interfaces.
- XGBoost: A Scalable Tree Boosting System, Tianqi Chen, Carlos Guestrin, 2016 Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (ACM) DOI: 10.1145/2939672.2939785 - Presents the core algorithm and system design of XGBoost, explaining its efficiency and performance.
- 1.11. Ensemble methods. In scikit-learn User Guide., scikit-learn developers, 2024 - Documents Scikit-learn's gradient boosting estimators, providing context for the XGBRegressor and XGBClassifier APIs.
- Hands-On Machine Learning with Scikit-Learn, Keras, and TensorFlow, Aurélien Géron, 2022 (O'Reilly Media) - Offers practical examples and conceptual explanations for various machine learning algorithms, including an introduction to XGBoost and its usage. 3rd edition.