LSTM(long short term memory)

LSTM networks are an extension of recurrent neural networks (RNNs). They can remember the information for a long period of time, unlike RNNs. In RNNs, there is no finer control over which part of the context needs to be carried forward or ‘forgotten’. The other issues with RNNs occur during…

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Recurrent Neural Network

Recurrent Neural Network(RNN) s are specially designed to work with sequential data, i.e. data where there is a natural notion of a ‘sequence’ such as text, videos (sequences of images), speech, etc. RNN is a type of Neural Network where the output from the previous step is fed as input to the current step. In…

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Convolutional Neural Network

A Convolutional Neural Network (ConvNet/CNN) is a specialized type of neural network model designed for working with two-dimensional image data. They can be used with one-dimensional and three-dimensional data also. Some of the areas where CNNs have widely used are image recognition, image classifications. Objects detections recognize faces, etc. CNN image classifications…

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Backpropagation

The training samples are passed through the network and the output obtained from the network is compared with the actual output. This error is used to change the weights of the neurons such that the error decreases gradually. This is done using the Backpropagation algorithm, also called backprop. Iteratively passing batches of…

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FeedForward Algorithm

In a feedforward neural network, the output from one layer is used as input to the next layer. Forward propagation means movement happens only from input to the output. This means there are no loops in the network and information is always fed forward.  Input data passes into a layer where…

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Activation Functions

An activation function helps a neural network to learn complex relationships and patterns in data. It takes in the output signal from the previous cell and converts it into some form that can be taken as input to the next cell. The activation function introduces non-linearity into the output of a neuron….

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Artificial Neural Network

Artificial Neural networks(ANN’s) are the base or functional unit of deep learning. A neural network emerged from a very popular machine learning algorithm named perceptron.  A Neuron is the basic unit of computation in a neural network. It is also called as a node or unit. The leftmost layer in this network is…

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Perceptron

Perceptron is an algorithm for supervised learning of binary classifiers. A binary classifier is a function that can decide whether or not an input, represented by a vector of numbers, belongs to some specific class. Perceptron is the simplest type of neural network model. It is a model of a…

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What is Deep Learning?

Deep learning is a subset of machine learning. Deep learning is inspired by the human brain. Deep learning is based on artificial neural networks. The “deep” in deep learning refers to the number of layers through which the data has to go through before the output layer. Neural networks use a…

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