The Building Blocks of AI What Is A Neural Network

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

• To determine whether and to what extent the neuron should be activated or fired

• To calculate the weighted sum Z

• To adjust the weights and biases during training

• To process the inputs and produce an output

Which activation function squashes the output between 0 and 1, making it suitable for binary classification problems?

• Sigmoid function

• Linear function

• ReLU function

• Tanh function

What is the purpose of the hidden layers in a neural network?

• To process the data and extract relevant features

• To receive the initial data or features as inputs

• To produce the network's output

• To adjust the weights and biases during training

What is the core function of a neural network?

• To mimic the way the human brain processes information

• To process the inputs and produce an output

• To adjust the weights and biases during training

• To calculate the weighted sum Z

Which function replaces negative values with zero and passes positive values unchanged?

• ReLU function

• Sigmoid function

• Linear function

• Tanh function

What is the purpose of the input layer in a neural network?

• To receive the initial data or features as inputs

• To process the data and extract relevant features

• To produce the network's output

• To adjust the weights and biases during training

What is the process called when neural networks adjust their weights and biases to minimize the difference between predictions and actual target values?

• Training

• Optimization

• Summation

• Activation

Which type of layer in a neural network produces the network's output?

• Activation layer

• Input layer

• Hidden layer

• Output layer

What is the function of the weighted sum Z in an artificial neuron?

• Introduces non-linearity into the neuron's response

• Determines the importance of each input

• Squashes the output between 0 and 1

• Represents the total influence of the inputs on the neuron's activity

Which function squashes the output between -1 and 1, providing a balanced response?

• Tanh function

• Sigmoid function

• Linear function

• ReLU function