Machine Learning: Random Forest with Python from Scratch - Recursion

The video tutorial begins with a brief overview of a previously implemented random forest model using SK learn. The session aims to implement a random forest from scratch without using Python's built-in libraries, except for pandas. The focus is on understanding the underlying processes of SK learn's implementation. The tutorial introduces Riccurian, a programming concept similar to recursion, and demonstrates its implementation in Python. The video explains the base case, variable updation, and recall in Riccurian, using a practical example in a Jupyter notebook. The session concludes with an explanation of how Riccurian functions operate like a stack.

What is the main goal of the session discussed in the introduction?

• To understand the basics of Python

• To implement random forest from scratch without built-in libraries

• To learn about pandas library

• To implement random forest using built-in libraries

Why was recursion not covered in the Python crash course?

• It is irrelevant to machine learning

• It is not used in Python

• It is an advanced programming concept

• It is a basic concept

What is recursion in programming?

• A method to sort data

• A loop that iterates over a list

• A way to handle exceptions

• A function that calls itself

What are the three basic components of recursion?

• Loop, condition, break

• Base case, variable updation, recall

• Start, stop, repeat

• Input, process, output

In the recursive function example, what is the base case?

• When count is a positive number

• When count equals zero

• When count is less than zero

• When count is greater than zero

What happens when the base case in a recursive function is met?

• The function throws an error

• The function enters an infinite loop

• The function returns and stops executing

• The function continues to call itself

How does recursion work in terms of function calls?

• It uses a queue to manage calls

• It uses a stack to manage calls

• It uses a list to manage calls

• It uses a dictionary to manage calls

What is the effect of moving the print statement in the recursive function?

• It has no effect on the output

• It stops the function from executing

• It causes a syntax error

• It changes the order of output

What is the purpose of the exercise given at the end of the session?

• To debug a syntax error

• To understand the change in output order

• To practice writing loops

• To learn about data structures

What concept will be covered in the next lecture?

• Advanced recursion techniques

• Data visualization with pandas

• The structure of random forest

• Basic Python syntax