What is an Artificial Neural Network (ANN)?

In this article, you are going to learn what is an artificial neural network? And what are the important key concepts in it?

AAN called Artificial neural network, is the concept and Deep learning algorithm technology created from the concept of the human biological neural system of the brain.

A computer system is made up of a number of simple, highly interconnected processing elements, which process information by their dynamic state response to external inputs.

The invention of the Artificial Neural Network is a major step forward in the field of artificial intelligence.

What is Biological Neural Network?

The most important component of a human neuron is the cell body. Here, many things happen.

Synapse – First, it stores sodium and potassium ions for neurotransmitters that will be released into the synapse to activate or inhibit another neuron.

Axon Hillock – The next important component is an axon hillock. This is where neurotransmitters are stored before they’re released.

Dendrite – Finally, dendrites receive information from other neurons and send it to the axon hillock for processing, it takes input from other neurons in the form of an electric impulse.

What is the Artificial Neural Network?

An artificial neural network is a process or a system that is inspired by the structure and function of the human brain.

Artificial neural networks are a class of machine learning algorithms that are designed to take on specific tasks by emulating the way animal brains learn.

They use a large number of nodes that can be either single-layer or multi-layer.

 artificial neural network Layers

Connections between these nodes allow the transfer of signals from one node to another.

Artificial neural networks are a type of computing system that is made to resemble the way the human brain works.

They are usually designed to minimize how many calculations they need so that they can run on devices with low processing power.

How does an Artificial Neural Network Works?

ANNs, or Artificial Neural Networks, can be used to solve many problems, a big one being the ability to predict.

By inputting data into an ANN, it is possible to obtain values of outputs. The difficulty with this is that there are many variables that can affect results.

Thus, the cost of an artificial neural network is the total cost incurred during the construction of the network in order to reduce errors and increase efficiency.

It operates similarly to a computer including input, processing, and output. The input can be just about anything from images to the text to sensor data.

In contrast with traditional neural networks, the artificial neural network has no hidden layers as it doesn’t have as many connections within the same layer.

What is Classification in ANN?

Classification is the process of categorizing an object, such as a housefly or a human being.

The object is classified into one of a number of classes or categories, depending on which classification system is used.

Classification is one of the most common algorithms used in machine learning and can be applied to almost any data set and neural network is one of them.

Classification is the process of categorizing something such as what a web page is about, or the sentiment of the text on a web page, so classification algorithms are commonly used in Natural Language Processing (NLP).

What is a Multilayer Perceptron?

Artificial neural network Multilayer Perceptron

The Multilayer Perceptron is a class of neural networks, commonly known as artificial neural networks.

The self-learning function that each node exhibits gives Multilayer Perceptrons the ability to deal with situations where they are presented with new data types that they have not seen before.

This is unlike Single Layer Perceptrons which can only recognize and deal with data they have been trained on previously.

The perceptron described above is a single-layer neural network. But what if we want to do something more complex, like classify an image into one of 1000 buckets? That’s not possible in a single layer, so we need to add more layers.

It is an artificial neural network model that uses successively more complex models to do learning and It consists of many layers of nodes, with each node feeding the next node in the series.

The first layer is called the input layer where data comes into the model, and the last layer is called the output layer where data exits the model.

What is Cost in ANN?

The cost of an artificial neural network is the total cost incurred during the construction of the ANN, generally over a period of up to 20 years.

Cost = Generated Output – Actual Output

The cost of an artificial neural network is the total cost incurred during the construction of the ANN (Artificial Neural Network).

The cost can be calculated depending on various factors such as model size, input, and output.

What are Weight and Bias?

If you’re interested in machine learning or building advanced artificial neural networks, then you’ve certainly come across the term “weight.”

You may have seen it when discussing feedforward and recurrent neural networks.

Or maybe when talking about how to create an error function. Or even when referencing backpropagation.

Weight is a pretty common term in the world of machine learning, but what does it actually mean?

Weights and biases are elements that define a neuron’s action in a network of neurons.

These values are processed by the input data, which is called an activation function.

How does a Weight and Bias work?

Artificial neural networks are created with a weight and bias node. The weight determines how much the input data is processed by the artificial neuron,  and the bias determines if the artificial neuron is active.

Artificial neurons in a neural network are processed through weight and bias.

The ‘weight’ or ‘strength’ of the neurons determines how much processing is undertaken by the neuron.

Weight in Multilayer Perceptron

Additionally, there is a bias or ‘bias voltage’ that determines whether the neuron turns on or not.

Bias in Multilayer Perceptron

What is the Use of Weight and Bias in ANN?

Artificial neural networks are a type of machine learning technology that is used for classification.

In order to classify an input, weight and bias are applied to the input before passing it on through the network.

The weight and bias work together to determine how much influence each input has on the output.

When we talk about artificial neural networks in Python, we call them perceptrons. A perceptron consists of two parts weight and a bias.

The weight is what we use to adjust the pass/fail results when our input passes through a perceptron.

Essentially, it’s a way to tell our perceptron what should be most important in its evaluation.

If a certain variable gets too high of weight, then that variable will have too much of an impact on the overall result

How to Training a ANN Model?

Training is the process of improving a neural net’s accuracy – it’s called training because it follows the same process as applying machine learning.

For example, in a decision tree-based system we would choose an attribute to split on and build one tree from the dataset that used that attribute to determine the best split.

Each time we return a prediction (classification or regression) for an example in training we compare it with what’s already known about that example.

If our prediction is wrong (which it will be some of the time) we go back to a previous point in the machine learning process and tweak the attributes and model to apply again.

Note: The important thing here is that machine learning systems start off uninformed (untrained).

We can feed them data (train them) and they then use that data to train themselves up to make predictions on future data they haven’t seen before.

That might sound really abstract but bear with me because hopefully, this will help you understand how neural networks are trained!

Applications of Artificial Neural Networks

Artificial neural networks are an algorithmic tool for modeling and reasoning about the brain.

They can be used to model anything from sensing to associative memories, from speech recognition to self-driving cars.

And despite having no known direct biological inspiration, artificial neural networks have made enormous contributions in many areas of engineering and computer science, providing us with highly valuable models for a diverse set of man-made systems – from secure communication over the internet and natural language understanding to modern machine-learning applications. 

Applications of Artificial Neural Networks (ANN) can be found in almost every aspect of modern technology.

They can be found in telecommunications, pattern recognition, signal processing, speech recognition, and machine translation, financial analysis, control systems, medical diagnosis, face recognition, etc.


Artificial neural networks are a relatively new area of study in computer science.

They are an extension of the brain theory, which states that the brain works by electrical signals running through clusters of interconnected neurons.

Artificial neural networks are composed of artificial “neurons” or simulated connections between real neurons.