Introduction to Neural Networks
What is a neural network? How does it work? What does a neural network do? Learn neural networks for free in this course and get your neural network questions answered, including applications of neural networks in deep learning.
Learn how neural networks work in deep learning
Do you want to acquire a super power? How about learning neural networks? Neural networks are at the heart of the deep learning revolution that’s happening around us right now.
Neural networks are the present and the future. The different neural network architectures like convolutional neural networks (CNN), recurrent neural networks (RNN), and others have altered the deep learning landscape.
But as a beginner in this field, you’ll have a ton of questions:
 What is a neural network?
 Why do we need to learn neural networks?
 How popular are neural networks?
 What are the advantages of neural networks?
 What kind of challenges you could face when applying neural networks?
 What exactly should you learn about neural networks?
 What are the core concepts that make up neural networks?
 What are the different types of neural networks in deep learning?
 Do you need to know programming to build a neural network?
 Which programming language is best for building neural networks? Python or R?
 What are the different applications of neural networks?
 What kind of problems or projects can you solve using neural networks?
From classifying images and translating languages to building a selfdriving car, neural networks are powering the world around us. Thanks to the idea of neural networks like CNN and RNN, deep learning has penetrated into multiple and diverse industries, and it continues to break new ground on an almost weekly basis!
So how can you get started with Neural networks?
Where should you begin learning? Neural networks can appear to be complex to master. In a lot of ways, they are. We have seen quite a number of aspiring data scientists and deep learning enthusiasts give up before they even touched a neural network!
But they’ve gone about it the wrong way. There are a lot of myths about neural networks that force people to quit:
 You need a strong background in statistics, machine learning, linear algebra, and calculus to learn neural networks
 You need to have a Ph.D. in order to understand neural networks
 You cannot build a neural network without advanced mathematics knowledge
Mastering all of these would take you years!
So, how else can you learn neural networks?
That is EXACTLY what this free course by Analytics Vidhya will teach you.
Course curriculum

1
Introduction to Neural Network
 Welcome to Introduction to Neural Networks
 Getting started with Neural Network
 Exercise : Getting started with Neural Network
 Independent and dependent variables
 Understanding Forward Propogation
 Exercise : Forward Propogation
 Error and Reason for Error
 Exercise : Error and Reason for Error
 Gradient Descent Intuition
 Understanding Math Behind Gradient Descent
 Exercise : Gradient Descent
 Back Propagation
 Exercise : Back Propagation
 Summary of the Module
 AI&ML Blackbelt Plus Program (Sponsored)

2
Applications of Neural Networks
 Computer Vision
 Exercise
 Natural Language Processing
 Exercise
 Audio Processing

3
Where to go from here?
 Where to go from here?
Common Questions Deep Learning Beginners ask about Neural Networks

Why do we need to learn neural networks?
Neural networks are at the core of the majority of deep learning applications. From computer vision use cases like facial recognition and object detection, to Natural Language Processing (NLP) tasks like writing essays and building humanlike chatbots, neural networks are ubiquitous.
The different offshoots of neural networks, such as convolutional neural networks (CNN), recurrent neural networks (RNNs), and Long Short Term Memory (LSTM), are a mustknow.
Neural networks are the present and the future  you should start learning right now! 
Why are neural networks so popular?
The above deep learning applications must have given you a fairly good idea of how useful neural networks are. They are incredibly powerful and organizations around the world are tapping into neural networks like CNN and RNN to help them find solutions to pressing problems.
Here are a few key reasons why neural networks and deep learning have become mainstream:
● Cheaper computation cost in recent years means neural networks are accessible to a wider deep learning community
● Availability of larger datasets means we can truly harness the power of neural networks
● Neural networks have consistently shown better performance on Computer Vision, Natural Language Processing (NLP), and other key domains 
What are the advantages of neural networks?
Phew! There are a ton of advantages to learning neural networks in the scope of deep learning.
● Neural networks can handle a huge amount of data. This is something traditional machine learning algorithms struggle with
● Neural networks have a proven record of improving on the performance of traditional machine learning algorithms
● Neural networks can implicitly detect complex nonlinear relationships between variables
● Wide range of applications! Neural networks are being used across industries, roles and functions 
What kind of challenges could you face when applying neural networks?
While neural networks like CNN and RNN are inherently awesome and are changing the deep learning field, there are still a few challenges you might face.
● Computation power: Deep neural networks like CNN and RNN can take up a lot of processing power
● Interpretability: Deep neural networks might be difficult to interpret or explain
● Overfitting: Modern neural networks have a tendency of overfitting on training data (but this can be rectified with regularization)
● Large datasets: Neural networks typically need large amount of data to train on 
What exactly should you learn about neural networks?
This is the million dollar question! What exactly should you learn about neural networks? That’s where this free course by Analytics Vidhya will help you.
We will cover topics like what is a neural network, the different parts of a neural network, applications of a neural network, among other things. We have also baked in exercises after each video lesson to test your neural network knowledge! 
What are the core concepts that make up a neural network?
Excellent question! Here are three key concepts you should know about the workings of a neural network:
● What is forward propagation?
● What is backward propagation (backpropagation)?
● Role of Gradient Descent in neural networks
We will cover each of these topics in the course. 
What are the different types of neural networks in deep learning?
There are different types of neural networks you will come across. Here are a few key ones:
● Artificial Neural Network (ANN)
● Recurrent Neural Network (RNN)
● Convolutional Neural Network (CNN)
● Long Short Term Memory (LSTM)
We’ve seen CNN and RNN getting a lot of attention lately in the deep learning community. 
Which programming language should I learn to build neural networks?
Python is the preferred language for learning and building neural networks in deep learning. We’ve seen a strong preference towards Python and hence we use it in the course.
If you’re new to Python, we recommend taking our free Python course. 
What kind of problems or projects can I solve using neural networks?
Neural networks open up a whole new world of projects. Once you have a hang of how neural networks work, you can get your hands on a dataset and start solving problems right away. We recommend heading over to our DataHack Platform and picking up the problem that you find the most interesting or relevant.
Instructor(s)

Faizan Shaikh
Faizan is working as a data scientist at Analytics Vidhya. Being a Deep Learning enthusiast, he aims to utilize his skills to push the boundaries of AI research. Faizan is an avid blogger on Analytics Vidhya, and has contributed to many articles to explain complex concepts of Deep Learning in a simple manner. He will be your instructor for the course. 
Neeraj Singh Sarwan
Neeraj is working at Fractal Analytics. Prior to that Neeraj was a data scientist with Analytics Vidhya. He has extensive experience in converting business problems to data problems. He has previously conducted several corporate trainings and is also an avid blogger. He's a graduate of IITBHU and will be your instructor for the Python and Modeling modules.
Here's what our students say about Introduction to Neural Networks Course

Short and simple
Satish Jaiswal
This free course was Awesome! I had no idea what Neural Network was but now I have thanks to Analytics Vidhya! You guys at the backend of this course rock!
This free course was Awesome! I had no idea what Neural Network was but now I have thanks to Analytics Vidhya! You guys at the backend of this course rock!
Read Less 
Awesome Course
deepakshar211.analyticsvidhya deepakshar211.analyticsvidhya
Best course I have ever completed in such a short time
Best course I have ever completed in such a short time
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5 star for back propagation
Dhiraj Patil
must see back propagation tut.
must see back propagation tut.
Read Less 
Intro to Neural Networks
sukanthen ss
This course proves to be a good guide for basic knowledge on neural networks.
This course proves to be a good guide for basic knowledge on neural networks.
Read Less 
really helpful
Monika Varshney
please provide more mcqs and calculative questions on neural networks..thanks..nice explanation..expecting in more detail so that we get overall idea about it
please provide more mcqs and calculative questions on neural networks..thanks..nice explanation..expecting in more detail so that we get overall idea about it
Read Less 
Awesome
Arghyadeep Sen
Great introductory video with clarity in concept
Great introductory video with clarity in concept
Read Less
Frequently Asked Questions
Common questions related to the Introduction to Neural Networks course.

Who should take this course?
This course is for people who want to kick start their deep learning journey and learn what and how neural networks work.

I have a programming experience of 2+ years, but no background in Deep Learning. Is the course right for me?
You’ve arrived at the perfect place! This course is ideal for beginners in deep learning. You will learn neural networks from scratch, the building block of deep learning.

What is the fee for this course?
This course is free of cost!

How long would I have access to the “Introduction to Neural Networks” course?
Once you register, you will have 6 months to complete the course. If you visit the course 6 months after your initial registration  you will need to enroll in the course again. Your past progress will be lost.

How much effort will this course take?
You can complete the "Introduction to Neural Networks" course in a few hours. You are also expected to apply your knowledge of neural networks and learning of this course to solve deep learning problems. The time taken in projects varies from person to person.

How can I apply and test my learnings about Neural Networks?
You can start by doing the tests at the end of the lessons in this course. In addition, you can apply Neural Networks to solve various problems on Analytics Vidhya’s DataHack Platform.

I’ve completed this course already and have a decent knowledge about neural networks. What should I learn next?
That’s great! We recommend taking the next step in your deep learning journey with the popular “Computer Vision using Deep Learning” course. You will work on real world handson computer vision case studies, learn the fundamentals of deep learning, and get familiar with tips and tricks to improve your deep learning models.

. Can I download videos from this course?
We regularly update the "Introduction to Neural Networks" course and hence do not allow for videos to be downloaded. You can visit this free course anytime to refer to these videos.

Which programming language is used to teach Neural Networks in this course?
This course uses Python programming language and its open source libraries to teach you how to build neural networks.