Mô tả

Ever wondered how AI technologies like OpenAI ChatGPT, GPT-4, DALL-E, Midjourney, and Stable Diffusion really work? In this course, you will learn the foundations of these groundbreaking applications.

This course teaches you about one popular technique used in machine learning, data science and statistics: linear regression. We cover the theory from the ground up: derivation of the solution, and applications to real-world problems. We show you how one might code their own linear regression module in Python.

Linear regression is the simplest machine learning model you can learn, yet there is so much depth that you'll be returning to it for years to come. That's why it's a great introductory course if you're interested in taking your first steps in the fields of:

  • deep learning

  • machine learning

  • data science

  • statistics

In the first section, I will show you how to use 1-D linear regression to prove that Moore's Law is true.

What's that you say? Moore's Law is not linear?

You are correct! I will show you how linear regression can still be applied.

In the next section, we will extend 1-D linear regression to any-dimensional linear regression - in other words, how to create a machine learning model that can learn from multiple inputs.

We will apply multi-dimensional linear regression to predicting a patient's systolic blood pressure given their age and weight.

Finally, we will discuss some practical machine learning issues that you want to be mindful of when you perform data analysis, such as generalization, overfitting, train-test splits, and so on.

This course does not require any external materials. Everything needed (Python, and some Python libraries) can be obtained for FREE.

If you are a programmer and you want to enhance your coding abilities by learning about data science, then this course is for you. If you have a technical or mathematical background, and you want to know how to apply your skills as a software engineer or "hacker", this course may be useful.

This course focuses on "how to build and understand", not just "how to use". Anyone can learn to use an API in 15 minutes after reading some documentation. It's not about "remembering facts", it's about "seeing for yourself" via experimentation. It will teach you how to visualize what's happening in the model internally. If you want more than just a superficial look at machine learning models, this course is for you.

"If you can't implement it, you don't understand it"

  • Or as the great physicist Richard Feynman said: "What I cannot create, I do not understand".

  • My courses are the ONLY courses where you will learn how to implement machine learning algorithms from scratch

  • Other courses will teach you how to plug in your data into a library, but do you really need help with 3 lines of code?

  • After doing the same thing with 10 datasets, you realize you didn't learn 10 things. You learned 1 thing, and just repeated the same 3 lines of code 10 times...


Suggested Prerequisites:

  • calculus (taking derivatives)

  • matrix arithmetic

  • probability

  • Python coding: if/else, loops, lists, dicts, sets

  • Numpy coding: matrix and vector operations, loading a CSV file


WHAT ORDER SHOULD I TAKE YOUR COURSES IN?:

  • Check out the lecture "Machine Learning and AI Prerequisite Roadmap" (available in the FAQ of any of my courses, including the free Numpy course)

Bạn sẽ học được gì

Derive and solve a linear regression model, and apply it appropriately to data science problems

Program your own version of a linear regression model in Python

Understand important foundations for OpenAI ChatGPT, GPT-4, DALL-E, Midjourney, and Stable Diffusion

Understand regularization for machine learning and deep learning

Understand closed-form solutions vs. numerical methods like gradient descent

Apply linear regression to a wide variety of real-world problems

Yêu cầu

  • How to take a derivative using calculus
  • Basic Python programming
  • For the advanced section of the course, you will need to know probability

Nội dung khoá học

9 sections

Welcome

3 lectures
Introduction and Outline
07:41
How to Succeed in this Course
03:04
Statistics vs. Machine Learning
09:58

1-D Linear Regression: Theory and Code

13 lectures
What is machine learning? How does linear regression play a role?
05:13
What can linear regression be used for?
1 question
Define the model in 1-D, derive the solution (Updated Version)
12:43
Define the model in 1-D, derive the solution
14:52
Coding the 1-D solution in Python
07:38
Exercise: Theory vs. Code
01:19
Determine how good the model is - r-squared
05:50
R-squared in code
02:15
Introduction to Moore's Law Problem
02:30
Demonstrating Moore's Law in Code
08:00
Moore's Law Derivation
06:02
R-squared Quiz 1
01:48
Suggestion Box
03:10

Multiple linear regression and polynomial regression

7 lectures
Define the multi-dimensional problem and derive the solution (Updated Version)
09:34
Define the multi-dimensional problem and derive the solution
17:07
How to solve multiple linear regression using only matrices
01:55
Coding the multi-dimensional solution in Python
07:29
Polynomial regression - extending linear regression (with Python code)
07:56
Predicting Systolic Blood Pressure from Age and Weight
05:45
R-squared Quiz 2
02:05

Practical machine learning issues

17 lectures
What do all these letters mean?
06:23
Interpreting the Weights
04:00
Generalization error, train and test sets
02:49
Generalization and Overfitting Demonstration in Code
07:32
Categorical inputs
05:21
One-Hot Encoding Quiz
02:07
Probabilistic Interpretation of Squared Error
05:15
L2 Regularization - Theory
04:21
L2 Regularization - Code
04:13
The Dummy Variable Trap
03:58
Gradient Descent Tutorial
04:30
Gradient Descent for Linear Regression
02:13
Bypass the Dummy Variable Trap with Gradient Descent
04:17
L1 Regularization - Theory
03:05
L1 Regularization - Code
04:25
L1 vs L2 Regularization
03:05
Why Divide by Square Root of D?
06:32

Conclusion and Next Steps

2 lectures
Brief overview of advanced linear regression and machine learning topics
05:14
Exercises, practice, and how to get good at this
03:54

Setting Up Your Environment (FAQ by Student Request)

3 lectures
Pre-Installation Check
04:12
Anaconda Environment Setup
20:20
How to install Numpy, Scipy, Matplotlib, Pandas, IPython, Theano, and TensorFlow
17:32

Extra Help With Python Coding for Beginners (FAQ by Student Request)

4 lectures
How to Code by Yourself (part 1)
15:54
How to Code by Yourself (part 2)
09:23
Proof that using Jupyter Notebook is the same as not using it
12:29
Python 2 vs Python 3
04:38

Effective Learning Strategies for Machine Learning (FAQ by Student Request)

4 lectures
How to Succeed in this Course (Long Version)
10:24
Is this for Beginners or Experts? Academic or Practical? Fast or slow-paced?
22:04
Machine Learning and AI Prerequisite Roadmap (pt 1)
11:18
Machine Learning and AI Prerequisite Roadmap (pt 2)
16:07

Appendix / FAQ Finale

2 lectures
What is the Appendix?
02:48
BONUS
05:48

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