What is a Neural Network

Neural Networks Explained in a Simple Way! Our Website: http://bit.ly/2KBC0l1 Android App: https://bit.ly/3k48zdK CBSE Class 10 Courses: https://bit.ly/363U55V CBSE Class 9 Courses: https://bit.ly/39Pm7mM CBSE Class 8 Courses: https://bit.ly/3bJByzB ICSE Class 10 Courses: https://bit.ly/2MaXpFo ICSE Class 9 Courses: https://bit.ly/3iFV7dl ICSE Class 8 Courses: https://bit.ly/3boM5OB IGCSE Courses: https://bit.ly/2YNwQcn Artificial Intelligence: https://www.manochaacademy.com/courses/b/ai Python Coding: https://bit.ly/3nX0s2y Java Coding: https://bit.ly/3chHTAK Facebook page: http://bit.ly/2s6VYhf A neural network is a computational model inspired by the structure and functioning of the human brain. It is a fundamental component of machine learning and artificial intelligence. Neural networks consist of interconnected nodes, known as neurons or artificial neurons, organized into layers. These layers typically include an input layer, one or more hidden layers, and an output layer. Here's how a neural network works: 1. Input Layer: This layer receives input data, which can be numeric, textual, or any other form of data that can be represented as numbers. Each neuron in the input layer corresponds to a feature or element of the input data. 2. Hidden Layers: Neural networks can have one or more hidden layers situated between the input and output layers. These hidden layers perform complex mathematical operations on the input data, transforming it in a way that enables the network to learn patterns and relationships in the data. 3. Neurons: Neurons in each layer are connected to neurons in adjacent layers through weighted connections. Each connection has an associated weight, which determines the strength of the connection. Neurons perform a weighted sum of their inputs and pass the result through an activation function, which introduces non-linearity into the network. Common activation functions include the sigmoid, ReLU (Rectified Linear Unit), and tanh (hyperbolic tangent) functions. 4. Output Layer: The output layer produces the final result or prediction based on the information processed through the hidden layers. The number of neurons in the output layer depends on the type of task the neural network is designed for. For example, in a binary classification task, there might be one neuron in the output layer, while in a multi-class classification task, there would be multiple output neurons, each corresponding to a different class. 5. Training: Neural networks are trained using a supervised learning approach. During training, they are presented with a dataset consisting of input-output pairs. The network makes predictions based on the input data, and the error between the predictions and the actual outputs is calculated. Optimization algorithms like gradient descent are used to adjust the weights of the connections in the network, with the goal of minimizing this error. This process is repeated iteratively until the network's performance improves. Neural networks are highly flexible and can be applied to a wide range of tasks, including image and speech recognition, natural language processing, recommendation systems, and more. Deep learning, a subset of neural networks, refers to the use of networks with many hidden layers, known as deep neural networks, which have shown remarkable success in various complex tasks. At Manocha Academy, learning Science and Math is Easy! The school coursework is explained with simple examples that you experience every day! Yes, Science & Math is all around you! Let's learn every day from everyday life!