Ml Activity Quiz

Which activation function is primarily used for binary classification tasks in neural networks?

• Tanh (Hyperbolic Tangent)

• Softmax

• ReLU (Rectified Linear Unit)

• Sigmoid

____ is a disadvantage of decision trees?

• Inability to handle non-linear relationships

• Decision trees are robust to outlier

• Limited interpretability of the model

• Tendency to overfit the training data

What is called the average squared difference between classifier predicted output and actual output?

• Mean squared error

• Mean relative error

• Mean absolute error

• Root mean squared error

Logistic regression is a ........... regression technique that is used to model data having a ............ outcome.

• Linear, binary

• Linear, numeric

• Nonlinear, binary

• Nonlinear, numeric

What is the most significant phase in a genetic algorithm?

• Mutation

• Crossover

• Selection

• Fitness function

Purpose of an optimizer in neural networks?

• Normalize data

• Compute gradients

• Update parameters

• Define architecture

What is the purpose of data augmentation in machine learning?

• To reduce the size of a dataset

• To improve the performance of a model

• To increase the size of a dataset

• To improve the quality of a dataset

Activation functions introduce ____

• Non-linearity

• Simplicity

• Linearity

• Complexity

Among the following identify the one in which dimensionality reduction reduces.

• performance

• entropy

• stochastics

• collinearity

A Python library used in machine learning