View Single Post
  #5  
Old 02-28-2013, 11:21 AM
gah44 gah44 is offline
Invited Guest
 
Join Date: Jul 2012
Location: Seattle, WA
Posts: 153
Default Re: SVM classifier One-vs-One and One-Vs-All clarification

Quote:
Originally Posted by yaser View Post
(snip)

One-versus-all: One class gets +1 and all other classes get -1. Data from all classes are considered, and one needs only to specify the "one" class, e.g., 5-versus-all in the digits case.
Not that I didn't figure it out, but it could be called One-versus-the-rest.

Seems to me that many classifiers would work less well if you kept in the "one" class, also with -1.
Reply With Quote