Johns Hopkins University
Advanced Methods in Machine Learning Applications
Johns Hopkins University

Advanced Methods in Machine Learning Applications

Erhan Guven

Instructor: Erhan Guven

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Gain insight into a topic and learn the fundamentals.
Intermediate level

Recommended experience

19 hours to complete
3 weeks at 6 hours a week
Flexible schedule
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
Intermediate level

Recommended experience

19 hours to complete
3 weeks at 6 hours a week
Flexible schedule
Learn at your own pace

What you'll learn

  • Understand and apply ensemble methods to improve model accuracy and robustness by combining multiple learning algorithms.

  • Explore advanced regression techniques for predicting continuous outcomes and modeling complex relationships in data.

  • Apply unsupervised learning algorithms for clustering, dimensionality reduction, and pattern recognition in unlabeled data.

  • Understand and implement reinforcement learning techniques and apriori analysis for decision-making and association rule mining.

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Recently updated!

September 2024

Assessments

12 assignments

Taught in English

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This course is part of the Applied Machine Learning Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
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There are 5 modules in this course

This course provides a comprehensive exploration of advanced machine-learning techniques, including ensemble methods, regression analysis, and unsupervised learning algorithms. Students will gain hands-on experience with reinforcement learning and decision tree models while applying association rule mining on real datasets. Emphasis is placed on evaluating model performance and comparing various learning approaches. By the end, participants will be equipped with practical skills to tackle complex data-driven challenges.

What's included

2 readings

You can enhance supervised learning by using multiple weak classifiers that work on subsets of features with limited learning capability. By leveraging their sheer numbers and majority voting, ensemble classifiers consistently outperform and offer greater robustness than complex individual classifiers. Random Forest, considered one of the premier ensemble classifiers, relies on weak decision tree classifiers. Therefore, decision tree classifiers and their visualizations will be introduced in this module. Furthermore, you will see how employing numerous weak classifiers with reduced feature sets from the dataset can achieve combined voting performance that surpasses that of individual classifiers.

What's included

4 videos2 readings3 assignments1 ungraded lab

Certain problems you encounter will demand precise numerical predictions, such as forecasting the seasonal flu arrival rate or predicting next week's stock market index. For such scenarios, regression techniques prove invaluable. Throughout this module, you'll explore various types of regression, solve linear regression equations analytically, define cost functions, and understand situations where linear regression may falter. Additionally, you'll delve into coding quadratic and logistic regressions from scratch, utilizing polynomial features and sci-fi optimizers. Logistic regression, a widely used classification method, fits data to a logistic curve based on dataset features. You'll apply logistic regression to develop a predictive model for cancer recurrence using patient diagnostic data.

What's included

4 videos3 readings3 assignments1 ungraded lab

In this module, you will explore unsupervised learning, which serves as the counterpart to supervised learning. Unsupervised learning aims to construct the underlying probability distribution of a dataset based on its features as random variables, enabling it to identify outliers and centroids of densities. You'll begin by understanding distance and similarity metrics crucial for clustering algorithms. Popular algorithms like k-means, DBSCAN, hierarchical clustering, and EM will be introduced briefly. You'll also learn about metrics that evaluate cluster quality, alongside 3D visualizations and dendrograms. Using an artificial dataset similar to the one used in supervised learning, you will apply clustering techniques. Additionally, you'll witness clustering in action on the famous iris dataset, employing various algorithms. Throughout, you'll discover how the Elbow method aids in determining the optimal number of clusters.

What's included

4 videos2 readings3 assignments1 ungraded lab

In this module, you will explore reinforcement learning, completing the trio of major learning strategies alongside supervised and unsupervised methods. Similar to how humans learn to navigate their environments, reinforcement learning operates in scenarios where ground truth is absent or impractical, relying instead on interactions with the environment. You'll discover how guidelines are learned through rewards and penalties to maximize benefits or minimize costs. Reinforcement learning is widely applied in teaching computers to play complex board games like Backgammon or chess—AlphaGo's triumph over the Go world champion exemplifies its capabilities in AI advancement. You'll delve into the reinforcement model, terminology, and typical problems such as tic-tac-toe and elevator control. Techniques for developing a mathematical model like Q-learning, based on states and actions, will be explored, culminating in hands-on implementation to master a chosen game.

What's included

6 videos3 readings3 assignments1 programming assignment

Instructor

Erhan Guven
Johns Hopkins University
3 Courses50 learners

Offered by

Recommended if you're interested in Machine Learning

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