Learning from Examples

CSC 261 - Artificial Intelligence - Weinman

1. Today's reading describes the three main types of learning.
   1. Which seems the hardest or most challenging to you? Briefly explain your answer.
   2. Which seems the most interesting to you? Briefly explain your answer.
   3. Which seems the most useful to you? Briefly explain your answer.
   Your choice may be the same or different for any of the above.
2. Sections 18.2 and 18.4.2 give two very different methods for choosing a hypothesis h^*. ¹ In your own words, describe the difference(s) in the underlying motivation of these two methods.
3. Imagine you are designing an automated system that is learning an estimated best hypothesis ĥ^* to break CAPTCHA texts.²
   1. Which of the four reasons for differing from the true function do you think would be most problematic? Briefly explain your answer.
   2. Which of the four reasons for differing from the true function do you think would be least problematic? Briefly explain your answer.
4. Identify (and briefly elaborate on) the sentence, section or concept from the current reading that remains the most confusing to you.

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