In the week 3 quiz, β (hyperparameter for momentum) is between 0.9 and 0.99, which is the recommended way to sample a value for beta? How did we arrive at the answer? Can someone explain the idea behind this?
Because of the role of that parameter in the formula, you use a search on a logarithmic scale. It’s been 3 or 4 years since I watched those lectures, but I’m pretty sure I remember Prof Ng specifically making that point about using a log based search. It’s worth another look/listen to the lectures.
I’d guess it’s by experimentation.
Exactly. I also saw the missmatch between the lecture and the test answers
The wording on the quizzes can sometimes be pretty convoluted. To help here, we probably need to see the actual quiz question, which we aren’t supposed to do in a public thread. I’ll send you a DM about how to proceed. Of course the other problem here is that you don’t always get the same questions when you retake the quizzes.
Could you please mention what did you observe in quiz ? ( with a bit of context as well , if possible )
A couple of points here:
- This thread is a year old, so there is no guarantee that the original author is still enrolled and listening, although there is somewhat more “continuity” in the mentor group. I checked the profile of that user and their last post was in April of 2024.
- It is against the rules to share quiz questions and answers for the same reason that it is against the rules to share code for solutions to the assignments. Sorry, but we can only do that kind of discussion on a private DM thread.
Oops. My Bad. I didn’t notice the date. I’m actually new to this platform. Not much used to to it.
Secondly, I wasn’t mindful of that policy. I will make sure to not ask anyone for quiz questions in future. Thanks for your guidance
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