Imagine you're on a treasure hunt, and at each step, you need to make a choice. Decision Trees are like maps that help computers make smart choices by asking questions!
The starting point of our decision tree! It's the first question we ask to begin our journey of making decisions.
These are the questions in the middle of our tree that help us split our data into smaller groups.
The end of our decision journey! These nodes give us the final answer or decision.
The process of dividing our data into groups based on answers to questions. The better the split, the smarter our tree!
Like trimming a real tree, we remove unnecessary branches to make our decision tree simpler and more accurate!
A special score that helps us decide which question is best to ask next. Lower scores mean better splits!
They work just like how humans make decisions, making them super easy to interpret!
Unlike other AI methods, decision trees don't require complex math to understand!
They can work with numbers, categories, and even text data!
They can make decisions quickly, even with lots of data!
We'll create a tree to decide whether to play outside based on weather conditions.
Every decision tree begins with a root question that splits the data into different groups. This is the most important question that gives us the most information!
Based on the answer to your question, create branches. Each branch represents a possible answer and leads to more questions or a final decision.
Continue asking questions at each branch until you can make a clear decision. Each question should help separate the data better than the previous one.
When you can't split the data anymore or you have a clear answer, you've reached a leaf node. This is your final decision!
Try your decision tree with new examples to see if it makes the right decisions. If not, you might need to adjust your questions!
Helping doctors identify diseases based on symptoms
Sorting important emails from spam
Predicting student performance and needs
Explore decision trees in 3D space! Rotate and zoom to see how decisions branch out.
Answer the questions to identify the mystery animal!
Answer the questions to identify the mystery fruit!
Answer the questions to find your perfect sport!
Answer the questions to find your perfect game!
Let's see how much you've learned about Decision Trees!
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