Improve the accuracy and reliability of your machine learning models by mastering ensemble techniques. In this intermediate-level course, you’ll learn why combining multiple models can outperform any single algorithm and how to design, select, and apply the right ensemble approach for different tasks. You’ll work through three core ensemble methods—bagging, boosting, and random forests—using Java in a Jupyter Notebook environment. Starting with the fundamentals of decision trees, you’ll progress from theory to practice, exploring bootstrap sampling, hard/soft voting, and the bias–variance trade-offs that influence ensemble performance. Each lesson combines focused videos, scenario-based discussions, AI-graded labs, and a capstone project, guiding you to build and evaluate ensembles on real datasets.
This course is for aspiring data scientists, ML engineers, and Java developers who want to enhance their predictive modeling skills using industry-standard ensemble techniques applied at companies like Netflix, Airbnb, and in Kaggle competitions.
Learners should have basic Java programming knowledge, familiarity with machine learning fundamentals (supervised learning, train/test splits, evaluation metrics), and comfort using Jupyter Notebook.
By the end, you’ll be able to implement, tune, and critically assess which ensemble method is most appropriate for a given problem, equipping you with practical, job-ready skills to improve predictive accuracy.
This module explains the core idea behind ensemble learning—combining multiple models to achieve higher predictive accuracy and stability than any single model. Learners explore how ensembles reduce bias and variance, review real-world use cases, and implement voting classifiers to see the performance gains firsthand.
涵盖的内容
4个视频2篇阅读材料1次同伴评审
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4个视频•总计24分钟
Welcome to Improve Accuracy with ML Ensemble Methods•2分钟
Core Principles of Ensemble Learning•5分钟
Practical Success Stories with Ensembles•7分钟
Building Voting Classifiers in Java with Jupyter•10分钟
2篇阅读材料•总计10分钟
Welcome to the Course: Course Overview•5分钟
Ensemble Learning: Concepts and Benefits•5分钟
1次同伴评审•总计20分钟
Hands-On-Learning: Build and Compare Voting Classifiers•20分钟
Bagging and Boosting
第 2 单元•小时 后完成
单元详情
This module teaches how to increase model accuracy by reducing variance with bagging and reducing bias with boosting. Learners practice bootstrap sampling, implement bagging in Java using Jupyter, and build a boosting model including AdaBoost to see how sequential learning corrects errors.
涵盖的内容
3个视频1篇阅读材料1次同伴评审
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3个视频•总计21分钟
Why Bootstrapping Matters for Ensemble Learning•6分钟
How Bagging Builds Stability in Models•7分钟
Turning Errors into Accuracy: Boosting with AdaBoost•7分钟
1篇阅读材料•总计5分钟
Choosing the Right Ensemble: Bagging vs. Boosting•5分钟
1次同伴评审•总计20分钟
Hands-On-Learning: Comparing Bagging and Boosting for Credit Risk Prediction•20分钟
Decision Trees and Random Forests
第 3 单元•小时 后完成
单元详情
This module covers decision tree fundamentals and shows how random forests combine many trees through feature bagging and averaging to create powerful, stable predictors. Learners build, tune, and evaluate random forest models in Java, interpreting feature importance and comparing results to single-tree models.
涵盖的内容
4个视频1篇阅读材料1个作业2次同伴评审
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4个视频•总计30分钟
The Mechanics of Decision Trees•10分钟
How Bagging and Boosting Improve Tree Models•10分钟
Building Smarter Ensembles with Random Forests•8分钟
Course Wrap-Up•2分钟
1篇阅读材料•总计5分钟
How Decision Trees Split Data: A Guided Walkthrough•5分钟
1个作业•总计20分钟
Improve Accuracy with ML Ensemble Methods•20分钟
2次同伴评审•总计80分钟
Hands-On-Learning: Decision Trees vs Random Forests for Predictive Maintenance•20分钟
Project: Building Reliable Ensemble Models for RetailGuard Analytics •60分钟
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