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Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

A: Artificial Neural Networks are the backbone of deep learning algorithms.

R. Back propagation is one of the techniques used to train an ANN.

In the light of the above statements, choose the most appropriate answer from the options given below:

This question was previously asked in
UGC NET 2022 Paper 1 Question Paper (22-Oct-2022) (Shift 2)
The correct answer is

Both A and R are correct and R is the correct explanation of A.

Deep learning uses artificial neural networks with many hidden layers. Such a network is only useful once its weights are learned, and the algorithm that makes learning in many layers possible is backpropagation of errors combined with gradient descent.

Assertion A — Convolutional, recurrent and transformer models are all artificial neural networks with many layers of weighted neurons, so ANNs are the backbone of deep learning algorithms. A is correct.

Reason R — Backpropagation computes the gradient of the loss with respect to every weight by applying the chain rule layer by layer from the output back to the input; the weights are then updated by gradient descent. It is one of the standard techniques used to train an ANN. R is correct.

Link — Deep networks became the basis of deep learning because backpropagation lets the error signal reach and adjust the weights of every hidden layer, so the hierarchical features that make deep learning work can be learned. In this sense R explains why ANNs can serve as the backbone of deep learning.

The choices stating that R does not explain A, or that A or R is incorrect, do not match this reasoning.

Both A and R are correct and R is the correct explanation of A option is correct.

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Similar Questions

  1. Consider the two class classification task that consists of the following points :

    Class \(C_{1}\) : [-1, -1], [-1, 1], [1, -1]

    Class \(C_{2}\) : [1, 1]

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  2. Consider the two class classification task that consists of the following points :

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  5. What is the role of weights in an ANN ?

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Important Questions from Artificial Neural Network

  1. In a feed forward neural network with the following specifications:

    Input layer has 4 neurons, hidden layer has 3 neurons and output layer has 2 neurons using the sigmoid activation function for given input values [0.5, 0.8, 0.2, 0.6] as well as the initial weights for the connections.

    W1: [0.1, 0.3, 0.5, 0.2]

    W2: [0.2, 0.4, 0.6, 0.2] Input layer to hidden layer weights

    W3: [0.3, 0.5, 0.7, 0.2]

    W4: [0.4, 0.1, 0.3]

    W5: [0.5, 0.2, 0.4] Hidden layer to output layer weights

    What is the output of the output layer when the given input values are passed through neural network? Round the answer to two decimal places :

  2. Given that $\eta$ refers to learning rate and $x_i$ refers to the $i^{th}$ input to the neuron, Which of the followings most suitably describes the weight updation rule of a Kohonen SOM? (where 'j' refers to the $j^{th}$ neuron in the lattice)

  3. Consider the following table defining the sample inputs and corresponding target values for a perceptron model.
     

    Sample Nox1x2targetw1w2
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    $y_{observed} = \{ \begin{matrix} 1 & \text{if } y_{in} > 0 \\ 0 & \text{if } y_{in} < 0 \end{matrix}$

  4. In a multilayer perceptron, an error signal originates at an output neuron of the network and propagates ___________ through the network.

  5. Which of the following is true about discrete hopfield network ?
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