LFD Book Forum  

Go Back   LFD Book Forum > Book Feedback - Learning From Data > Chapter 4 - Overfitting

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 08-06-2013, 09:14 AM
arapmv arapmv is offline
Junior Member
Join Date: Aug 2013
Location: Baltimore
Posts: 4
Default calculation 4.8 on p.139


I have a question regarding the calculation (4.8) on p.139 in the book. The final hypothesis g^{-} depends, albeit indirectly, on the choice of the validation set \mathcal{D}_{val}. Indeed, by construction we train on the complement of \mathcal{D}_{val} in \mathcal{D}, which makes g^{-} dependent on the choice of \mathcal{D}_{val}. The derivation (4.8) appears to rely on the assumption that g^{-} is independent of \mathcal{D}_{val}.

Does anyone have any comments on this?
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 06:37 PM.

Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2022, 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.