LFD Book Forum  

Go Back   LFD Book Forum > Course Discussions > Online LFD course > Homework 7

Reply
 
Thread Tools Display Modes
  #1  
Old 05-20-2012, 01:34 PM
kurts kurts is offline
Invited Guest
 
Join Date: Apr 2012
Location: Portland, OR
Posts: 70
Default Do we need "b" in HW7.8?

Quadratic programming gives us alpha, which we use to calculate w, and we can use alpha to see how many support vectors there are, but is there any reason to calculate b?
Reply With Quote
  #2  
Old 05-20-2012, 01:47 PM
lucag lucag is offline
Member
 
Join Date: Apr 2012
Posts: 44
Default Re: Do we need "b" in HW7.8?

Quote:
Originally Posted by kurts View Post
Quadratic programming gives us alpha, which we use to calculate w, and we can use alpha to see how many support vectors there are, but is there any reason to calculate b?
b is another name for w_0 ... I made the same mistake
Reply With Quote
  #3  
Old 05-20-2012, 02:39 PM
kurts kurts is offline
Invited Guest
 
Join Date: Apr 2012
Location: Portland, OR
Posts: 70
Default Re: Do we need "b" in HW7.8?

Thanks!

I forgot that this was discussed in the lecture as the second technicality on slide 20.
Reply With Quote
Reply

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 10:09 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.