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-   Chapter 3 - The Linear Model (http://book.caltech.edu/bookforum/forumdisplay.php?f=110)
-   -   Exercises and Problems (http://book.caltech.edu/bookforum/showthread.php?t=259)

yaser 03-24-2012 11:25 PM

Exercises and Problems
 
Please comment on the chapter problems in terms of difficulty, clarity, and time demands. This information will help us and other instructors in choosing problems to assign in our classes.

Also, please comment on the exercises in terms of how useful they are in understanding the material.

timhndrxn 04-12-2012 12:10 PM

Re: Exercises and Problems
 
Exercise 3.2 does not seem clear concerning the test set of size 1,000 mentioned at the end. The sentence begins "Similarly" implying that this test set becomes a data set D of size N = 1,000 to be made not linearly separable. Then you repeat the whole experiment on the new data set D.

But, because the purpose is to examing E_out, perhaps the intent is to take 1,000 points that are (very likely to be) out of sample, and evaluate w-vector vs. w-hat-vector on them.

yaser 04-12-2012 12:57 PM

Re: Exercises and Problems
 
Quote:

Originally Posted by timhndrxn (Post 1246)
Exercise 3.2 does not seem clear concerning the test set of size 1,000 mentioned at the end. The sentence begins "Similarly" implying that this test set becomes a data set D of size N = 1,000 to be made not linearly separable. Then you repeat the whole experiment on the new data set D.

But, because the purpose is to examing E_out, perhaps the intent is to take 1,000 points that are (very likely to be) out of sample, and evaluate w-vector vs. w-hat-vector on them.

Indeed, this is the intent in Ex 3.2. Thank you.

mathprof 04-15-2012 08:18 AM

Re: Exercises and Problems
 
I've found the level of the problems to be about right. Doing them really helps one to digest the material. So far so good!

Iyeeke 10-13-2017 02:58 PM

Re: Exercises and Problems
 
Would it be possible for you to release solutions to the exercises on this forum? It would be great to check my logic as I am doing these problems.

TLMFQS 10-14-2017 02:33 AM

Re: Exercises and Problems
 
Exercise 3.6 was a mess. It's not that hard, but the notations are all messed up with no explanation and errors.


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