LFD Book Forum

LFD Book Forum (http://book.caltech.edu/bookforum/index.php)
-   Chapter 4 - Overfitting (http://book.caltech.edu/bookforum/forumdisplay.php?f=111)
-   -   The expected validation error (http://book.caltech.edu/bookforum/showthread.php?t=2404)

tom_bryant 10-21-2012 01:01 PM

The expected validation error
 
The expected validation error of a classification problem should be a number, right? What is the meaning of calculating the expectation of a constant number with respect to the validation set? As far as I can see, it will be definitely be the same constant number.

magdon 10-21-2012 02:41 PM

Re: The expected validation error
 
The validation error is a number that depends on the validation data. You can take the expectation of this number with respect to the validation data. That is the expected validation error.


Quote:

Originally Posted by tom_bryant (Post 6700)
The expected validation error of a classification problem should be a number, right? What is the meaning of calculating the expectation of a constant number with respect to the validation set? As far as I can see, it will be definitely be the same constant number.



All times are GMT -7. The time now is 03:06 PM.

Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
The contents of this forum are to be used ONLY by readers of the Learning From Data book by Yaser S. Abu-Mostafa, Malik Magdon-Ismail, and Hsuan-Tien Lin, and participants in the Learning From Data MOOC by Yaser S. Abu-Mostafa. No part of these contents is to be communicated or made accessible to ANY other person or entity.