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Neural Networks In Python From Scratch. Build step by step!

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  • 1,984 Students
  • Updated 8/2024
  • Certificate Available
4.6
(430 Ratings)
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Course Information

Registration period
Year-round Recruitment
Course Level
Study Mode
Duration
3 Hour(s) 18 Minute(s)
Language
English
Taught by
Loek van den Ouweland
Certificate
  • Available
  • *The delivery and distribution of the certificate are subject to the policies and arrangements of the course provider.
Rating
4.6
(430 Ratings)
2 views

Course Overview

Neural Networks In Python From Scratch. Build step by step!

Understand machine learning and deep learning by building linear regression and gradient descent from the ground up.

You will learn how to build Neural Networks with Python. Without the need for any library, you will see how a simple neural network from 4 lines of code, evolves into a artificial intelligence network that is able to recognize handwritten digits.

During this process, you will learn concepts like: Feed forward, Cost functions, Back propagation, Hidden layers, Linear regression, Gradient descent and Matrix multiplication. And all this with plain Python.

Target audience

Developers who especially benefit from this course, are:

  • Developer who want to learn the mechanics of neural networks

  • Developers who want to avoid using neural network libraries and frameworks

  • Or developers who use frameworks but want to learn the meaning of the individual network parameters

Challenges

Many tutorials claim to start from scratch, but import external libraries or rapidly type in code and before executing even once, you are looking at 50 lines of code. When finally the code is run, you are totally lost and still stuck trying to understand line 3.

This causes many students to give up learning Neural Networks.
This course is different! It starts with the absolute beginning and each topic is a continuation of a previous example. This way, you will learn neural networks from the ground up, step by step.


What can you do after this course?

  • You understand neural network concepts and ideas, like back propagation and gradient descent.

  • You are able to build a neural network in any programming language of choice, without the help of frameworks and libraries.

  • You understand how to better configure the network by plugging in different cost functions and adding hidden layers.


Topics

  • Linear regression

  • Cost functions

  • Bias

  • Multiple inputs

  • Normalisation

  • Gradient descent

  • Classification

  • Activation

  • Multi-class classification

  • Non-linear data

  • Hidden layers

Duration
3 hour video time. This course has no exercises.

The teacher
This course is taught by Loek van den Ouweland, a senior software engineer with 25 years of professional experience. Loek is the creator of Wunderlist for windows, Microsoft To-do and Mahjong for Windows and loves to teach software engineering.

Students of this course tell me:
* * * * * “Great, simple explanations. Perfect for beginners that have little pre knowledge of the topic.”
* * * * * “Straight to the point starting with the foundations.”
* * * * * “Clearly explained step by step how Neural Networks work and can be developed in a pure development language of choice without the usage of any external package..”

Course Content

  • 8 section(s)
  • 24 lecture(s)
  • Section 1 Course Introduction
  • Section 2 Neural Network Introduction
  • Section 3 Linear Regression
  • Section 4 Real Data
  • Section 5 Classification
  • Section 6 Multiclass Classification
  • Section 7 Hidden Layers, Random Weights
  • Section 8 Handwritten Digits Recognition

What You’ll Learn

  • The basic functions for any neural network, by coding linear regression, cost functions and back propagation
  • Understand the properties of neural networks by adjusting learning rates and biases
  • Train a network by implementing a gradient descent algorithm
  • Normalizing inputs for multi-input networks
  • Create classification networks by implementing multiple output neurons and activation
  • Improve network accuracy by implementing hidden layers for non-linear data


Reviews

  • A
    Alberto Navarrete Peón
    4.5

    Loek, as always, explains the fundamentals with clear and concise examples. This is the code that is behind libraries, and although is impractical to code AI from scratch, it is always good to know how the calculations work.

  • C
    Christian Malak
    5.0

    Awesome course. Really on point and easy to understand. Also, I can't say enough how great it is that this course is so compact, not dragged out endlessly. Had to enroll to the one with the cars immediately after finishing this one.

  • I
    Indronil Bhattacharjee
    1.0

    Everything that the instructor explained with othe AI courses in the introduction is present in the course . The code is pretty difficult to follow . explanations are not good , almost delivered by a AI voice ...

  • Y
    Yousif N. Abbas
    5.0

    awesome

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