Building, Optimizing, and Validating Machine Learning Models
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Building, Optimizing, and Validating Machine Learning Models
This course is part of Machine Learning Made Easy for Software Engineers Specialization
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What you'll learn
Build and train machine learning models by mapping real-world problems to appropriate ML tasks
Optimize and validate models using hyperparameter tuning, cross-validation, and feature analysis
Create automated ML pipelines that streamline feature engineering, training, and experimentation
Skills you'll gain
- Model Optimization
- Resource Utilization
- Benchmarking
- Predictive Modeling
- Supervised Learning
- Applied Machine Learning
- Feature Engineering
- Statistical Machine Learning
- Random Forest Algorithm
- Machine Learning Software
- Model Training
- Machine Learning
- Statistical Modeling
- Model Evaluation
- Cost Management
- Verification And Validation
- Workflow Management
- Machine Learning Methods
- Performance Analysis
Tools you'll learn
Details to know
March 2026
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There are 9 modules in this course
Machine learning models rarely perform well without careful design, evaluation, and optimization. In this course, you'll learn how to build machine learning models and systematically improve their performance using proven engineering practices.
You’ll start by learning how to map business problems to appropriate machine learning tasks and train multiple model types using common ML libraries. You’ll explore how different algorithms behave under varying data conditions and learn how to justify model choices based on performance and bias-variance trade-offs. Next, you’ll optimize models through systematic hyperparameter tuning and evaluate the computational cost of different algorithms to choose efficient solutions. You’ll also learn validation techniques such as cross-validation and stratified sampling to estimate model performance reliably. The course concludes by showing how to automate machine learning workflows. You’ll build end-to-end pipelines that streamline feature engineering, model training, and optimization so experiments can be reproduced and improved efficiently. By the end of this course, you’ll understand how to design, optimize, and validate machine learning models that are ready for integration into larger ML systems.
You will analyze business requirements and translate them into appropriate machine learning task types, ensuring correct problem framing before modeling begins.
What's included
3 videos2 readings1 assignment
3 videos•Total 12 minutes
- Welcome and Introduction•3 minutes
- How to Read a Product Spec Through an ML Lens•4 minutes
- ML Task Families Explained Simply•4 minutes
2 readings•Total 12 minutes
- From Business Problem to ML Task: A Framing Guide•6 minutes
- Why Machine Learning Projects Fail — and How to Make Sure They Don’t•6 minutes
1 assignment•Total 20 minutes
- Hands-On Activity: Frame the ML Task for a Factory Productivity Monitoring Feature•20 minutes
You will use ML APIs to train and compare multiple algorithms on structured datasets using reproducible workflows.
What's included
2 videos1 reading2 assignments
2 videos•Total 14 minutes
- Training Models Using Consistent APIs•5 minutes
- Demo: Train Logistic Regression, Random Forest, and Linear SVM•10 minutes
1 reading•Total 6 minutes
- Data Leakage•6 minutes
2 assignments•Total 27 minutes
- Hands-On Activity: Exploring Multiple ML Models for Worker Productivity with a Consistent Workflow •20 minutes
- Practice Quiz: Model Training Patterns and Evaluation•7 minutes
You will evaluate model behavior across algorithm families and justify selection decisions using bias–variance reasoning and performance evidence.
What's included
2 videos1 reading1 assignment1 ungraded lab
2 videos•Total 8 minutes
- Understanding the Bias–Variance Trade-Off•5 minutes
- Demo: Compare Random Forest vs. Gradient Boosting Across Splits•3 minutes
1 reading•Total 7 minutes
- Single estimator versus bagging: bias-variance decomposition•7 minutes
1 assignment•Total 20 minutes
- Graded Assessment: ML: Build, Train, Justify Models•20 minutes
1 ungraded lab•Total 55 minutes
- Train, Compare, and Justify Models in a Reproducible Pipeline•55 minutes
You will examine default hyperparameters and computational complexity to understand how they influence model behavior and training cost.
What's included
3 videos1 reading2 assignments1 ungraded lab
3 videos•Total 20 minutes
- Welcome and Course Introduction•5 minutes
- What Are Hyperparameters? Understanding Defaults Across Algorithms•7 minutes
- Computational Complexity: Choosing Algorithms That Scale•8 minutes
1 reading•Total 7 minutes
- Three Essential Hyperparameter Tuning Techniques for Better Machine Learning Models•7 minutes
2 assignments•Total 20 minutes
- Hands-On Activity: Identify and Compare Defaults Across Algorithms•15 minutes
- Practice Quiz: Defaults and Complexity•5 minutes
1 ungraded lab•Total 45 minutes
- Build a Wiki-Style Reference: Defaults + Big-O Complexity•45 minutes
You will design structured search strategies, run tuning experiments, and interpret cross-validated results to improve model performance.
What's included
2 videos1 reading2 assignments
2 videos•Total 13 minutes
- Systematic Tuning: Grid Search, Random Search, and Beyond•8 minutes
- Setting Up GridSearchCV for Random Forests•5 minutes
1 reading•Total 6 minutes
- Comparing Randomized Search and Grid Search for Hyperparameter Estimation in Scikit Learn•6 minutes
2 assignments•Total 35 minutes
- Graded Quiz: Structured Tuning•20 minutes
- Hands-On Activity: Tune a Random Forest with GridSearchCV and Save Best Parameters•15 minutes
You will benchmark training time, memory usage, and computational cost to select algorithms that meet performance and efficiency goals.
What's included
4 videos1 reading2 assignments1 ungraded lab
4 videos•Total 25 minutes
- Welcome & Course Introduction Video•4 minutes
- How Algorithm Design Impacts Training Time and Memory•7 minutes
- How to Benchmark Algorithms Fairly and Consistently•7 minutes
- Hands-On Benchmarking: XGBoost vs. Random Forest•7 minutes
1 reading•Total 6 minutes
- Comparing Model Performance and Resource Usage•6 minutes
2 assignments•Total 40 minutes
- Graded Quiz: Cost-Effective Algorithm Selection Checkpoint•20 minutes
- Hands-On Activity: Analyze Sample Benchmark Logs to Determine Cost Efficiency•20 minutes
1 ungraded lab•Total 45 minutes
- Benchmark XGBoost vs. Random Forest on a Large Dataset•45 minutes
You will implement k-fold and stratified validation strategies to generate reliable performance estimates, especially for imbalanced datasets.
What's included
3 videos1 reading1 assignment1 ungraded lab
3 videos•Total 17 minutes
- Welcome and Why Model Validation Matters•5 minutes
- Understanding K-Fold Cross-Validation•4 minutes
- Implementing StratifiedKFold in scikit-learn•7 minutes
1 reading•Total 8 minutes
- Stratified Sampling for Imbalanced Data•8 minutes
1 assignment•Total 15 minutes
- Hands-On Activity: Build and Evaluate Stratified K-Fold•15 minutes
1 ungraded lab•Total 45 minutes
- Fraud Model ROC-AUC with StratifiedKFold•45 minutes
You will interpret feature-importance outputs and SHAP explanations to clearly communicate model behavior to technical and non-technical stakeholders.
What's included
3 videos1 reading2 assignments
3 videos•Total 19 minutes
- Why Model Explainability Matters•4 minutes
- Feature Importance: Global and Local Views•5 minutes
- Generating SHAP Summary Plots•10 minutes
1 reading•Total 8 minutes
- SHAP: A Gentle Introduction•8 minutes
2 assignments•Total 35 minutes
- Graded Assessment: Validate and Explain ML Models Mastery check•20 minutes
- Hands-On Activity: Interpret SHAP Outputs•15 minutes
You will construct, tune, and package an automated machine learning pipeline that integrates preprocessing, model training, and optimization into a reusable workflow.
What's included
3 videos2 readings2 assignments1 ungraded lab
3 videos•Total 30 minutes
- Why Automation Improves ML Performance•4 minutes
- Pipeline Fundamentals: Scaling, Encoding, and Workflow Structure•15 minutes
- Automating Model Optimization with GridSearchCV•12 minutes
2 readings•Total 20 minutes
- Building a Strong Foundation: Preprocessing, Logistic Regression, and Workflow Setup•10 minutes
- Publishing Pipelines as Reusable Modules: A Practical Guide•10 minutes
2 assignments•Total 45 minutes
- Graded Quiz: Automate ML Pipelines for Peak Performance•20 minutes
- Hands-On Activity: Build, Tune, and Finalize Your Automated Pipeline•25 minutes
1 ungraded lab•Total 45 minutes
- Build and Publish a Complete Automated Pipeline Module•45 minutes
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Frequently asked questions
This course is designed for learners who already have programming experience and some familiarity with machine learning concepts. It focuses on practical techniques used to improve and validate models in real applications.
You’ll work with common machine learning tools and libraries such as scikit-learn and ML pipeline frameworks used to train, evaluate, and optimize models.
Validation techniques help ensure that a model performs reliably on new data. In this course, you’ll learn methods such as cross-validation and feature importance analysis to assess model behavior and avoid overfitting.
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¹ Some assignments in this course are AI-graded. For these assignments, your data will be used in accordance with Coursera's Privacy Notice.
