Linear vs. Tree Models in Machine Learning

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Questions and Answers

Which component of the learning process involves facilities for storing and retrieving huge amounts of data?

  • Abstraction
  • Data storage (correct)
  • Generalization
  • Evaluation

In the context of machine learning, what is the task T in the handwriting recognition learning problem?

  • Playing chess
  • Driving on highways using vision sensors
  • Recognising and classifying handwritten words within images (correct)
  • Playing practice games against itself

What is the performance measure P in the robot driving learning problem?

  • Average distance traveled before an error (correct)
  • Percent of games won against opponents
  • A dataset of handwritten words with given classifications
  • Percent of words correctly classified

Which component of the learning process involves the percent of games won against opponents as a performance measure?

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

What does the function 'V' represent in the context of the given board state?

<p>A linear combination of various board features (C)</p> Signup and view all the answers

What do the weights w1 to w6 determine in the context of the learning algorithm?

<p>The relative importance of different board features (A)</p> Signup and view all the answers

How are the coefficients w0 to w6 obtained in the learning algorithm?

<p>They are obtained through a learning algorithm (A)</p> Signup and view all the answers

Which type of models have low variance and high bias?

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

Why are Linear models less likely to overfit the training data?

<p>Due to low variance (A)</p> Signup and view all the answers

What does the training phase involve in the context of the text?

<p>Learning a conjunction of attributes for Enjoy Sport = yes (A)</p> Signup and view all the answers

Which concept do distance-based models primarily depend on?

<p>Distance metrics (A)</p> Signup and view all the answers

How can geometric models define similarity?

<p>By evaluating instances in a three-dimensional space (A)</p> Signup and view all the answers

What makes tree models more variable with training data compared to linear models?

<p>Their predictions are based on split choices (C)</p> Signup and view all the answers

What is a key characteristic of geometric models?

<p>They represent features geometrically (D)</p> Signup and view all the answers

How do logical models like decision trees define similarity compared to geometric models?

<p>By partitioning the instance space based on logical expressions (A)</p> Signup and view all the answers

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