Mô tả

Believe it or not, almost all online businesses today make use of recommender systems in some way or another.

What do I mean by “recommender systems”, and why are they useful?

Let’s look at the top 3 websites on the Internet, according to Alexa: Google, YouTube, and Facebook.

Recommender systems form the very foundation of these technologies.

Google: Search results

They are why Google is the most successful technology company today.

YouTube: Video dashboard

I’m sure I’m not the only one who’s accidentally spent hours on YouTube when I had more important things to do! Just how do they convince you to do that?

That’s right. Recommender systems!

Facebook: So powerful that world governments are worried that the newsfeed has too much influence on people! (Or maybe they are worried about losing their own power... hmm...)

Amazing!


This course is a big bag of tricks that make recommender systems work across multiple platforms.

We’ll look at popular news feed algorithms, like Reddit, Hacker News, and Google PageRank.

We’ll look at Bayesian recommendation techniques that are being used by a large number of media companies today.


But this course isn’t just about news feeds.

Companies like Amazon, Netflix, and Spotify have been using recommendations to suggest products, movies, and music to customers for many years now.

These algorithms have led to billions of dollars in added revenue.

So I assure you, what you’re about to learn in this course is very real, very applicable, and will have a huge impact on your business.


For those of you who like to dig deep into the theory to understand how things really work, you know this is my specialty and there will be no shortage of that in this course. We’ll be covering state of the art algorithms like matrix factorization and deep learning (making use of both supervised and unsupervised learning - Autoencoders and Restricted Boltzmann Machines), and you’ll learn a bag full of tricks to improve upon baseline results.


As a bonus, we will also look how to perform matrix factorization using big data in Spark. We will create a cluster using Amazon EC2 instances with Amazon Web Services (AWS). Most other courses and tutorials look at the MovieLens 100k dataset - that is puny! Our examples make use of MovieLens 20 million.


Whether you sell products in your e-commerce store, or you simply write a blog - you can use these techniques to show the right recommendations to your users at the right time.

If you’re an employee at a company, you can use these techniques to impress your manager and get a raise!


I’ll see you in class!



NOTE:

This course is not "officially" part of my deep learning series. It contains a strong deep learning component, but there are many concepts in the course that are totally unrelated to deep learning.


"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:

  • For earlier sections, just know some basic arithmetic

  • For advanced sections, know calculus, linear algebra, and probability for a deeper understanding

  • Be proficient in Python and the Numpy stack (see my free course)

  • For the deep learning section, know the basics of using Keras

  • For the RBM section, know Tensorflow


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)


UNIQUE FEATURES

  • Every line of code explained in detail - email me any time if you disagree

  • No wasted time "typing" on the keyboard like other courses - let's be honest, nobody can really write code worth learning about in just 20 minutes from scratch

  • Not afraid of university-level math - get important details about algorithms that other courses leave out

Bạn sẽ học được gì

Understand and implement accurate recommendations for your users using simple and state-of-the-art algorithms

Big data matrix factorization on Spark with an AWS EC2 cluster

Matrix factorization / SVD in pure Numpy

Matrix factorization in Keras

Deep neural networks, residual networks, and autoencoder in Keras

Restricted Boltzmann Machine in Tensorflow

Yêu cầu

  • For earlier sections, just know some basic arithmetic
  • For advanced sections, know calculus, linear algebra, and probability for a deeper understanding
  • Be proficient in Python and the Numpy stack (see my free course)
  • For the deep learning section, know the basics of using Keras

Nội dung khoá học

13 sections

Welcome

4 lectures
Introduction
03:09
Outline of the course
04:45
Where to get the code
05:05
How to Succeed in this Course
03:04

Simple Recommendation Systems

15 lectures
Section Introduction and Outline
04:19
Perspective for this Section
03:41
Basic Intuitions
05:14
Associations
04:43
Hacker News - Will you be penalized for talking about the NSA?
07:28
Reddit - Should censorship based on politics be allowed?
08:54
Problems with Average Rating & Explore vs. Exploit (part 1)
10:58
Problems with Average Rating & Explore vs. Exploit (part 2)
07:39
Bayesian Ranking (Beginner Version)
22:34
Demographics and Supervised Learning
07:22
PageRank (part 1)
11:12
PageRank (part 2)
11:55
Evaluating a Ranking
04:39
Section Conclusion
04:10
Suggestion Box
03:10

Collaborative Filtering

8 lectures
Collaborative Filtering Section Introduction
11:38
User-User Collaborative Filtering
13:51
Collaborative Filtering Exercise Prep
10:21
Data Preprocessing
15:26
User-User Collaborative Filtering in Code
16:06
Item-Item Collaborative Filtering
09:15
Item-Item Collaborative Filtering in Code
07:07
Collaborative Filtering Section Conclusion
05:34

Beginner Q&A

3 lectures
How do I Choose Which Model to Use?
04:02
How do I Solve the Cold-Start Problem?
04:29
What if I Don't Like Math or Programming?
05:47

Matrix Factorization and Deep Learning

19 lectures
Matrix Factorization Section Introduction
04:08
Matrix Factorization - First Steps
15:27
Matrix Factorization - Training
08:56
Matrix Factorization - Expanding Our Model
08:04
Matrix Factorization - Regularization
06:18
Matrix Factorization - Exercise Prompt
01:15
Matrix Factorization in Code
06:17
Matrix Factorization in Code - Vectorized
10:14
SVD (Singular Value Decomposition)
07:48
Probabilistic Matrix Factorization
06:06
Bayesian Matrix Factorization
05:34
Matrix Factorization in Keras (Discussion)
07:32
Matrix Factorization in Keras (Code)
07:14
Deep Neural Network (Discussion)
02:51
Deep Neural Network (Code)
02:43
Residual Learning (Discussion)
02:03
Residual Learning (Code)
01:59
Autoencoders (AutoRec) Discussion
10:14
Autoencoders (AutoRec) Code
11:45

Restricted Boltzmann Machines (RBMs) for Collaborative Filtering

13 lectures
RBMs for Collaborative Filtering Section Introduction
02:08
Intro to RBMs
08:21
Motivation Behind RBMs
06:51
Intractability
03:11
Neural Network Equations
07:43
Training an RBM (part 1)
11:34
Training an RBM (part 2)
06:18
Training an RBM (part 3) - Free Energy
07:20
Categorical RBM for Recommender System Ratings
11:32
RBM Code pt 1
07:26
RBM Code pt 2
04:16
RBM Code pt 3
11:42
Speeding up the RBM Code
07:53

Big Data Matrix Factorization with Spark Cluster on AWS / EC2

6 lectures
Big Data and Spark Section Introduction
07:16
Setting up Spark in your Local Environment
07:36
Matrix Factorization in Spark
10:28
Spark Submit
06:26
Setting up a Spark Cluster on AWS / EC2
12:38
Making Predictions in the Real World
02:46

Basics Review

6 lectures
(Review) Keras Discussion
06:48
(Review) Keras Neural Network in Code
06:37
(Review) Keras Functional API
04:26
(Review) How to easily convert Keras into Tensorflow 2.0 code
01:49
(Review) Confidence Intervals
10:11
(Review) Gaussian Conjugate Prior
05:41

Bayesian Ranking (Scary Version)

6 lectures
Bayesian Approach part 0 (Preparation)
12:08
Bayesian Approach part 1 (Optional)
11:07
Optional: Bayesian Approach part 2 (Sampling and Ranking)
05:57
Optional: Bayesian Approach part 3 (Gaussian)
08:23
Optional: Bayesian Approach part 4 (Code)
12:01
Why don't we just use a library?
05:40

Setting Up Your Environment (FAQ by Student Request)

3 lectures
Pre-Installation Check
04:12
Anaconda Environment Setup
20:20
How to How to install Numpy, Theano, Tensorflow, etc...
17:30

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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