This course is a lead-in to **deep learning** and **neural networks** - it covers a popular and fundamental technique used in machine learning, data science and statistics: logistic 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 logistic regression module in Python.

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

This course provides you with many practical examples so that you can really see how deep learning can be used on anything. Throughout the course, we'll do a course project, which will show you how to predict user actions on a website given user data like whether or not that user is on a mobile device, the number of products they viewed, how long they stayed on your site, whether or not they are a returning visitor, and what time of day they visited.

Another project at the end of the course shows you how you can use deep learning for facial expression recognition. Imagine being able to predict someone's emotions just based on a picture!

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 use your skills to make **data-driven decisions** and optimize your business using scientific principles, then this course is for you.

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.

Suggested Prerequisites:

Tips for success:

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

This course provides you with many practical examples so that you can really see how deep learning can be used on anything. Throughout the course, we'll do a course project, which will show you how to predict user actions on a website given user data like whether or not that user is on a mobile device, the number of products they viewed, how long they stayed on your site, whether or not they are a returning visitor, and what time of day they visited.

Another project at the end of the course shows you how you can use deep learning for facial expression recognition. Imagine being able to predict someone's emotions just based on a picture!

If you are a programmer and you want to enhance your coding abilities by learning about

This course focuses on

Suggested Prerequisites:

- calculus
- matrix arithmetic
- probability
- Python coding: if/else, loops, lists, dicts, sets
- Numpy coding: matrix and vector operations, loading a CSV file

Tips for success:

- Use the video speed changer! Personally, I like to watch at 2x.
- Take handwritten notes. This will drastically increase your ability to retain the information.
- Write down the equations. If you don't, I guarantee it will just look like gibberish.
- Ask lots of questions on the discussion board. The more the better!
- Don't get discouraged if you can't solve every exercise right away. Sometimes it'll take hours, days, or maybe weeks!
- Write code yourself, this is an applied course! Don't be a "couch potato".

You probably already know this, but some of us really and truly appreciate you. BTW, I spent a reasonable amount of time making a learning roadmap based on your courses and have started the journey.

Looking forward to your new stuff.

I am signing up so that I have the easy refresh when needed and the see what you consider important, as well as to support your great work, thank you.

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I wish you a happy and safe holiday season. I am glad you chose to share your knowledge with the rest of us.

And, I couldn't agree more with some of your "rants", and found myself nodding vigorously!

You are an excellent teacher, and a rare breed.

And, your courses are frankly, more digestible and teach a student far more than some of the top-tier courses from ivy leagues I have taken in the past.

(I plan to go through many more courses, one by one!)

I know you must be deluged with complaints in spite of the best content around That's just human nature.

Also, satisfied people rarely take the time to write, so I thought I will write in for a change. :)

In the process of completing my Master’s at Hunan University, China, I am writing this feedback to you in order to express my deep gratitude for all the knowledge and skills I have obtained studying your courses and following your recommendations.

The first course of yours I took was on Convolutional Neural Networks (“Deep Learning p.5”, as far as I remember). Answering one of my questions on the Q&A board, you suggested I should start from the beginning – the Linear and Logistic Regression courses. Despite that I assumed I had already known many basic things at that time, I overcame my “pride” and decided to start my journey in Deep Learning from scratch. ...

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- Introduction and Outline (07:23) (FREE preview available)
- How to Succeed in this Course (05:52)
- Statistics vs. Machine Learning (09:58)
- Review of the classification problem (01:54)
- Introduction to the E-Commerce Course Project (08:53)

- Linear Classification (04:50)
- Biological inspiration - the neuron (03:37)
- How do we calculate the output of a neuron / logistic classifier? - Theory (04:19)
- How do we calculate the output of a neuron / logistic classifier? - Code (04:31)
- Interpretation of Logistic Regression Output (05:33)
- E-Commerce Course Project: Pre-Processing the Data (21:05)
- E-Commerce Course Project: Making Predictions (13:01)
- Feedforward Quiz (01:25)
- Prediction Section Summary (01:12)
- Suggestion Box (03:10)

- Training Section Introduction (01:39)
- A closed-form solution to the Bayes classifier (06:00)
- What do all these symbols mean? X, Y, N, D, L, J, P(Y=1|X), etc. (03:38)
- The cross-entropy error function - Theory (02:47)
- The cross-entropy error function - Code (04:54)
- Visualizing the linear discriminant / Bayes classifier / Gaussian clouds (02:29)
- Maximizing the likelihood (06:35)
- Updating the weights using gradient descent - Theory (06:21)
- Updating the weights using gradient descent - Code (03:10)
- E-Commerce Course Project: Training the Logistic Model (13:30)
- Training Section Summary (02:03)

- Practical Section Introduction (02:46)
- Interpreting the Weights (04:08)
- L2 Regularization - Theory (08:39)
- L2 Regularization - Code (01:44)
- L1 Regularization - Theory (02:54)
- L1 Regularization - Code (06:14)
- L1 vs L2 Regularization (03:06)
- The donut problem (10:02)
- The XOR problem (06:13)
- Why Divide by Square Root of D? (06:32)
- Practical Section Summary (02:03)

- Sentiment Analysis (05:14)
- Exercises + how to get good at this (02:49)

- Facial Expression Recognition Problem Description (12:22)
- The class imbalance problem (06:02)
- Utilities walkthrough (05:46)
- Facial Expression Recognition in Code (10:42)

- Gradient Descent Tutorial (04:30)

- Anaconda Environment Setup (20:21)
- How to install Numpy, Scipy, Matplotlib, Pandas, IPython, Theano, and TensorFlow (17:33)

- How to Code Yourself (part 1) (15:55)
- How to Code Yourself (part 2) (09:24)
- Proof that using Jupyter Notebook is the same as not using it (12:29)
- Python 2 vs Python 3 (04:38)

- How to Succeed in this Course (Long Version) (10:25)
- Is this for Beginners or Experts? Academic or Practical? Fast or slow-paced? (22:05)
- What order should I take your courses in? (part 1) (11:19)
- What order should I take your courses in? (part 2) (16:07)

- What is the Appendix? (02:48)
- Where to get discount coupons and FREE deep learning material (05:31)

- Calculus Cheatsheet