Exploring Neural Networks Fundamentals

Which of the following is a type of neural network primarily used for image processing tasks?

• Recurrent Neural Network (RNN)

• Convolutional Neural Network (CNN)

• Feedforward Neural Network

• Radial Basis Function Network

What is the main purpose of an activation function in a neural network?

• To initialise weights

• To introduce non-linearity

• To normalise input data

• To reduce overfitting

• Sigmoid

• Tanh

• ReLU

• Softmax

In the context of neural networks, what does the term "backpropagation" refer to?

• Forward pass of data through the network

• Updating weights using gradient descent

• Initialising the network's parameters

• Normalising the input data

Which type of neural network is best suited for processing sequential data, such as time series or natural language?

• Convolutional Neural Network (CNN)

• Recurrent Neural Network (RNN)

• Feedforward Neural Network

• Generative Adversarial Network (GAN)

What is the primary advantage of using a Convolutional Neural Network (CNN) over a traditional neural network for image data?

• Ability to handle sequential data

• Reduced number of parameters

• Faster training time

• Better handling of overfitting

Which activation function is commonly used in the output layer of a neural network for multi-class classification problems?

• ReLU

• Sigmoid

• Tanh

• Softmax

What is the role of the pooling layer in a Convolutional Neural Network (CNN)?

• To increase the number of parameters

• To reduce the spatial dimensions of the input

• To apply non-linearity

• To normalise the input data

In backpropagation, what is the purpose of calculating the gradient of the loss function with respect to the weights?

• To initialise the weights

• To update the weights to minimise the loss

• To normalise the input data

• To increase the learning rate

Which of the following is NOT a type of neural network?

• Feedforward Neural Network

• Convolutional Neural Network

• Recurrent Neural Network

• Decision Tree