Backpropagation Algorithm Quiz

What is the objective of backpropagation algorithm?

• to develop learning algorithm for multilayer feedforward neural network

• to develop learning algorithm for single layer feedforward neural network

• to develop learning algorithm for multilayer feedforward neural network, so that network can be trained to capture the mapping implicitly

• none of the mentioned

What is true regarding backpropagation rule?

• it is a feedback neural network

• actual output is determined by computing the outputs of units for each hidden layer

• hidden layers output is not all important, they are only meant for supporting input and output layers

• none of the mentioned

What are the general tasks that are performed with backpropagation algorithm?

• pattern mapping

• function approximation

• prediction

• all of the mentioned

How can learning process be stopped in backpropagation rule?

• there is convergence involved

• no heuristic criteria exist

• on basis of average gradient value

• none of the mentioned

Which of the following is not a step in backpropagation algorithm?

• Feed-forward computation

• Backpropagation to the output layer

• Backpropagation to the input layer

• Backpropagation to the hidden layer

Which of the following statements is not true about backpropagation?

• Initially the weights are assigned at random

• The algorithm iterates through many cycles of two processes until a stopping criterion has reached

• Each epoch includes a forward phase and a backward phase

• The whole cycles of execution together are known as an epoch

What will be the final value of f(x, y, z) from the below figure given that x = -5, y = 7, and z = 14?

• 28

• -105

• 16

• -133

Does backpropagation learning is based on gradient descent along error surface?

• yes

• no

• cannot be said

• it depends on gradient descent but not error surface

A perceptron is a -----------.

• Feed-forward neural network

• Back-propagation algorithm

• Back-tracking algorithm

• Feed Forward-backward algorithm

Which algorithm are in more similar to backward chaining algorithm?

• Depth-first search algorithm

• Breadth-first search algorithm

• Hill-climbing search algorithm

• All of the mentioned