In the weight update rule of the neural network, w  = w - a \delta w1 pointa is called learning ratea is called Hebbian constanta is called momentumNone of the above

What is learnt in a neural network?1 pointWeights and BiasesOnly weightsOnly biasesNone of the above

Given a learning rate of 0.01 and a gradient of 0.05, what is the update step for the weights?

You1 pointWhich of the following is not a type of layer in a neural network? Input layer Hidden layer Output layer Support layer1 pointWhat is the process of adjusting control parameters to optimize a neural network's performance called? Regularization Hyperparameter tuning Gradient descent Feature scaling1 pointWhat is the purpose of the learning rate in a neural network? To control the speed of weight updates To determine the number of layers To set the activation function To initialize the weights1 pointWhat is the purpose of the loss function in a neural network? To measure the accuracy of the model To update the weights To compute the gradient To measure the difference between predicted output and actual output1 pointWhat does the term 'backpropagation' refer to in neural networks? Forward movement of information in a neural network Fine-tuning the weights by propagating errors backward Activation of output neurons Weight initialization process1 pointWhich algorithm is commonly used for updating weights in backpropagation? Gradient Descent K-Means Random Forest Principal Component Analysis1 pointWhat does the term 'epoch' refer to in neural network training? A type of activation function Number of layers in a network One complete cycle of training data through the network A method for weight initialization1 pointWhat is a perceptron? a single layer feed-forward neural network an auto-associative neural network a double layer auto-associative neural network a neural network that contains feedback1 pointWhich of the following best defines cross-sectional data? Data collected over different time periods from the same subjects Data collected from a single point in time from different subjects Data collected from the same subjects over multiple time points Data collected from a specific population at regular intervals1 pointIf a neural network has 16 input neurons and 4 output neurons, how many neurons would be recommended for the hidden layer according to thumb rule? 8 neurons 4 neurons 2 neurons 12 neurons1 pointIf you increase the number of hidden layers in a multi-layer perceptron, the classification error of test data always decreases True False1 pointThere is a feedback loop in the final stage of a back propagation algorithm True False1 pointIn time series analysis, which component represents the long-term movement or the general direction of the data? Seasonality Cyclical variations Trend Residual or noise1 pointWhat defines panel data in econometric studies? Data that involve repeated multi-dimensional observations of the same subjects over different periods of time same as cohort study repeated observations at same time All the above1 pointWhat differentiates a feedforward neural network from other types of neural networks like recurrent neural networks (RNNs) or convolutional neural networks (CNNs)? It incorporates feedback connections It's designed specifically for sequential data Information flows in a single direction, without loops or cycles. It employs pooling layers for feature extraction.

What is the weight update rule in backpropagation?Select one:a.W(i, j) = W(i, j) - alpha * delta(i) * output(j)b.W(i, j) = W(i, j) + alpha * delta(i) * output(j)c.W(i, j) = W(i, j) / alpha * delta(i) * output(j)d.W(i, j) = W(i, j) * alpha * delta(i) * output(j)

What is forward propagated in a neural network?1 pointWeights and biasesSumming weightInputActivation function