Math 0-1: Matrix Calculus In Data Science & Machine Learning
Published 11/2023
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 3.37 GB | Duration: 4h 33m
A Casual Guide for Artificial Intelligence, Deep Learning, and Python Programmers
What you'll learn
Derive matrix and vector derivatives for linear and quadratic forms
Solve common optimization problems (least squares, Gaussian, financial portfolio)
Understand and implement Gradient Descent and Newton's method
Learn to use the Matrix Cookbook
Requirements
Competence with Calculus and Linear Algebra
Optional: Familiarity with Python, Numpy, and Matplotlib to implement optimization techniques
Description
Welcome to the exciting world of Matrix Calculus, a fundamental tool for understanding and solving problems in machine learning and data science. In this course, we will dive into the powerful mathematics that underpin many of the algorithms and techniques used in these fields. By the end of this course, you'll have the knowledge and skills to navigate the complex landscape of derivatives, gradients, and optimizations involving matrices.Course Objectives:Understand the basics of matrix calculus, linear and quadratic forms, and their derivatives.Learn how to utilize the famous Matrix Cookbook for a wide range of matrix calculus operations.Gain proficiency in optimization techniques like gradient descent and Newton's method in one and multiple dimensions.Apply the concepts learned to real-world problems in machine learning and data science, with hands-on exercises and Python code examples.Why Matrix Calculus? Matrix calculus is the language of machine learning and data science. In these fields, we often work with high-dimensional data, making matrices and their derivatives a natural representation for our problems. Understanding matrix calculus is crucial for developing and analyzing algorithms, building predictive models, and making sense of the vast amounts of data at our disposal.Section 1: Linear and Quadratic Forms In the first part of the course, we'll explore the basics of linear and quadratic forms, and their derivatives. The linear form appears in all of the most fundamental and popular machine learning models, including linear regression, logistic regression, support vector machine (SVM), and deep neural networks. We will also dive into quadratic forms, which are fundamental to understanding optimization problems, which appear in regression, portfolio optimization in finance, signal processing, and control theory.The Matrix Cookbook is a valuable resource that compiles a wide range of matrix derivative formulas in one place. You'll learn how to use this reference effectively, saving you time and ensuring the accuracy of your derivations.Section 2: Optimization Techniques Optimization lies at the heart of many machine learning and data science tasks. In this section, we will explore two crucial optimization methods: gradient descent and Newton's method. You'll learn how to optimize not only in one dimension but also in high-dimensional spaces, which is essential for training complex models. We'll provide Python code examples to help you grasp the practical implementation of these techniques.Course Structure:Each lecture will include a theoretical introduction to the topic.We will work through relevant mathematical derivations and provide intuitive explanations.Hands-on exercises will allow you to apply what you've learned to real-world problems.Python code examples will help you implement and experiment with the concepts.There will be opportunities for questions and discussions to deepen your understanding.Prerequisites:Basic knowledge of linear algebra, calculus, and Python programming is recommended.A strong desire to learn and explore the fascinating world of matrix calculus.Conclusion: Matrix calculus is an indispensable tool in the fields of machine learning and data science. It empowers you to understand, create, and optimize algorithms that drive innovation and decision-making in today's data-driven world. This course will equip you with the knowledge and skills to navigate the intricate world of matrix calculus, setting you on a path to become a proficient data scientist or machine learning engineer. So, let's dive in, embrace the world of matrices, and unlock the secrets of data science and machine learning together!
Overview
Section 1: Introduction
Lecture 1 Introduction and Outline
Lecture 2 How to succeed in this course
Lecture 3 Where to get the code
Section 2: Matrix and Vector Derivatives
Lecture 4 Derivatives - Section Introduction
Lecture 5 Linear Form
Lecture 6 Quadratic Form (pt 1)
Lecture 7 Quadratic Form (pt 2)
Lecture 8 Exercise: Quadratic
Lecture 9 Exercise: Least Squares
Lecture 10 Exercise: Gaussian
Lecture 11 Chain Rule
Lecture 12 Chain Rule in Matrix Form
Lecture 13 Chain Rule Generalized
Lecture 14 Exercise: Quadratic with Constraints
Lecture 15 Left and Right Inverse as Optimization Problems
Lecture 16 Derivative of Determinant
Lecture 17 Derivatives - Section Summary
Lecture 18 Suggestion Box
Section 3: Optimization Techniques
Lecture 19 Optimization - Section Introduction
Lecture 20 Second Derivative Test in Multiple Dimensions
Lecture 21 Gradient Descent (One Dimension)
Lecture 22 Gradient Descent (Multiple Dimensions)
Lecture 23 Newton's Method (One Dimension)
Lecture 24 Newton's Method (Multiple Dimensions)
Lecture 25 Exercise: Newton's Method for Least Squares
Lecture 26 Exercise: Code Preparation
Lecture 27 Gradient Descent and Newton's Method in Python
Lecture 28 Optimization - Section Summary
Section 4: Appendix / FAQ Finale
Lecture 29 BONUS
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