Traverse Trees for ML with DFS & BFS
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Traverse Trees for ML with DFS & BFS
This course is part of Level Up: Java-Powered Machine Learning Specialization
Instructors: Starweaver
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What you'll learn
Analyze the differences between Breadth-First Search and Depth-First Search to understand when to use each approach.
Implement a Breadth-First Search and Depth-First Search in Java to traverse decision trees.
Apply tree traversal algorithms such as BFS and DFS to generate rulesets from decision trees.
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December 2025
1 assignment
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There are 3 modules in this course
Data that requires decisions and classifications are everywhere. Decision trees help to create solid data inferences for some of the most common types of machine learning problems. To take advantage of this structure, you need to understand how to properly traverse and build rulesets from decision trees. In this course, you'll learn the fundamentals of decision trees, understanding how to implement the structures in Java. From here, you'll explore some different methods of tree traversals, focusing on BFS and DFS. With BFS and DFS, you'll be able to apply tree traversals to generate tree rulesets. With this knowledge, you'll be equiped to implement and traversal decision trees.
This course is for Java developers with a solid programming background, focusing on decision trees, BFS, DFS, and rule generation for machine learning and data classification. A solid understanding of Java programming is crucial for implementing decision trees and traversal algorithms. Additionally, some familiarity with trees as a data structure will help, as decision trees rely on hierarchical structures. By the end of this course, you'll have the skills to confidently implement tree traversal algorithms like BFS and DFS, and generate powerful rules from decision trees to tackle real-world machine learning problems.
Tree searching algorithms are a core method for traversing tree-based data structures. In this module, we'll explore the strucutre of decision trees and understand how a breadth-first and depth-first search for be applied to traverse decision tree structures.
What's included
4 videos2 readings1 peer review
4 videosβ’Total 22 minutes
- Welcome to Traverse Trees for ML with DFS & BFSβ’3 minutes
- Representations of Decision Treesβ’6 minutes
- How Does Breadth-First Search Workβ’7 minutes
- How does Depth-First Search Workβ’5 minutes
2 readingsβ’Total 10 minutes
- Welcome to the Course: Course Overviewβ’5 minutes
- Four Types of Tree Traversal Algorithmsβ’5 minutes
1 peer reviewβ’Total 20 minutes
- Hands-On-Learning: Building a Decision Tree in Javaβ’20 minutes
With an understanding of the theory of tree traversals, we can now move towards an implementation of our traversal algorithms. In this module, we'll explore how DFS and BFS can be implemented Java. We'll also take a look at how these algorithms can be analyzed to understand both time complexity and potential use cases.
What's included
3 videos1 reading1 peer review
3 videosβ’Total 19 minutes
- Implementing a Depth-First Searchβ’6 minutes
- Implementing a Breadth-First Searchβ’5 minutes
- Analyzing and Determining Use Cases for Traversalsβ’8 minutes
1 readingβ’Total 5 minutes
- What is a Breadth-First Search Traversal: A Comprehensive Overviewβ’5 minutes
1 peer reviewβ’Total 20 minutes
- Hands-On-Learning: Implementing Traversals on a Full Decision Tree Structureβ’20 minutes
One of the main applications of BFS and DFS for decision trees is the creation of tree rules. In this module, we'll see how both BFS and DFS can be applied to generate tree rules for a decision tree. We'll also explore how these approaches compare to other common tree rule generations such as ID3 and CART.
What's included
4 videos1 reading1 assignment2 peer reviews
4 videosβ’Total 21 minutes
- Applying BFS to Tree Rule Generationsβ’6 minutes
- Applying DFS to Tree Rule Generationsβ’5 minutes
- Analysis of Tree Building Algorithmsβ’7 minutes
- Course Wrap-Upβ’2 minutes
1 readingβ’Total 5 minutes
- From Decision Trees to Rule-Based Systems: A Machine Learning Prototypeβ’5 minutes
1 assignmentβ’Total 20 minutes
- Traverse Trees for ML with DFS & BFSβ’20 minutes
2 peer reviewsβ’Total 80 minutes
- Hands-On-Learning: Constructing Rules for Loan Payback Predictionβ’20 minutes
- Project: Predicting Customer Purchase Behavior with Decision Treesβ’60 minutes
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