2. Deep Learning and Variants_Session 2_20240120 - Neural Networks for Classification Quiz

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Questions and Answers

What is the purpose of using logistic regression with the MTcars dataset?

  • To determine the power of a vehicle's engine based on its weight and transmission type
  • To predict the weight of a vehicle given its engine power and type of transmission
  • To estimate the probability of a car having manual transmission based on its engine power and weight (correct)
  • To classify vehicles as manual or automatic based on their engine power and weight

What is a limitation of a single perceptron model?

  • It cannot handle non-linear data effectively (correct)
  • It always outputs a positive value
  • It is limited to only two input features
  • It does not work well with small datasets

What does the region below the line in the perceptron model signify?

  • Inconclusive results
  • Positive output values
  • Negative output values (correct)
  • Data points that should be ignored

How does a single perceptron handle non-linearity in data?

<p>By converting non-linear data into linear form (A)</p> Signup and view all the answers

What are neurons like sigmoid et al. used for in deep learning?

<p>To represent activation functions in neural networks (D)</p> Signup and view all the answers

Based on biological inspiration, what would intuition suggest when dealing with non-linear data using a single perceptron model?

<p>Use multiple layers of neurons like the human brain does (B)</p> Signup and view all the answers

What is a key characteristic of a one hidden layer network?

<p>It can learn any function (B)</p> Signup and view all the answers

In Artificial Neural Networks, what do hyper-parameters refer to?

<p>Parameters like activation functions and network structure (D)</p> Signup and view all the answers

What is the purpose of using the softmax activation function in the output layer of a neural network?

<p>To convert raw scores into probabilities for multi-class classification (D)</p> Signup and view all the answers

Which type of neural network is specifically designed for problems with non-linear relationships between inputs and outputs?

<p>Feed Forward Neural Network (D)</p> Signup and view all the answers

What is the primary role of the transformation matrix in neural networks?

<p>It represents all the connections between neurons as a matrix (A)</p> Signup and view all the answers

What distinguishes Multi Layer Perceptrons from traditional perceptrons?

<p>MLPs have multiple hidden layers, while perceptrons have only one (A)</p> Signup and view all the answers

Which function is often used for the activation of neurons in the output layer of a neural network for regression problems?

<p>Linear (D)</p> Signup and view all the answers

What does the term 'hyper-parameters' typically refer to in the context of Artificial Neural Networks?

<p>Network structure and activation functions (A)</p> Signup and view all the answers

In a neural network, which function is commonly used in the output layer for multi-class classification problems?

<p>Softmax (C)</p> Signup and view all the answers

What is the primary role of a transformation matrix in a neural network?

<p>Changing representation space (A)</p> Signup and view all the answers

Which of the following is NOT a hyper-parameter in an Artificial Neural Network?

<p>Weights and bias initialization method (C)</p> Signup and view all the answers

For what type of problem is the Sigmoid activation function particularly useful in a neural network?

<p>Classification problems (B)</p> Signup and view all the answers

What distinguishes Multi Layer Perceptrons from traditional perceptrons?

<p>Non-linearity handling capability (A)</p> Signup and view all the answers

In deep learning, what do parameters like 'Number of hidden layers' and 'Number of neurons' represent?

<p>'Hyper-parameters' (B)</p> Signup and view all the answers

What is a key characteristic of a Multi Layer Perceptron (MLP)?

<p>Consists of multiple hidden layers (C)</p> Signup and view all the answers

What type of activation function is often employed in the output layer for binary classification problems?

<p>Sigmoid (C)</p> Signup and view all the answers

What model is used to estimate the probability of a vehicle being fitted with a manual transmission using the MTcars dataset?

<p>Perceptron (D)</p> Signup and view all the answers

In logistic regression, what does a positive value output by a single perceptron represent?

<p>Region above the line (D)</p> Signup and view all the answers

Why is a single perceptron not suitable for handling non-linear data?

<p>It can't create a boundary beyond linear regions (B)</p> Signup and view all the answers

What is the limitation of a single perceptron when dealing with binary classification similar to the 'Will it work here?' example provided?

<p>It cannot represent non-linear decision boundaries (D)</p> Signup and view all the answers

Based on biological inspiration, what approach would intuition suggest when dealing with non-linear data using artificial neurons?

<p>Combine multiple layers of neurons (B)</p> Signup and view all the answers

What is the primary role of the sigmoid function in artificial neural networks?

<p>Handle non-linear relationships (B)</p> Signup and view all the answers

In the given logistic regression formula, what does the term 'hp' represent?

<p>Horsepower of the engine (C)</p> Signup and view all the answers

'Will it work here?' table demonstrates an issue faced by which type of model due to its linearity?

<p>'Perceptron' model (D)</p> Signup and view all the answers

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