LFD Book Forum  

Go Back   LFD Book Forum > Course Discussions > Online LFD course > Homework 3

Reply
 
Thread Tools Display Modes
  #1  
Old 10-20-2013, 03:15 AM
yaser's Avatar
yaser yaser is offline
Caltech
 
Join Date: Aug 2009
Location: Pasadena, California, USA
Posts: 1,477
Default Slide 4 in Lecture 6

Someone asked on another forum for clarification of the matrix in Slide 4 of Lecture 6 that lists the table of S_1, S_2^+,S_2^- groupings of the matrix rows, and the TA gave a nice answer by constructing these groupings for the puzzle that was given at the end of Lecture 5:

Quote:
Originally Posted by Victor Kasatkin

In the puzzle, the table is

1. \ ---
2. \ --+
3. \ -+-
4. \ +--

By definition of S_1, it should consist of those rows which will still remain unique after removing the last column. These are rows 3 and 4. Rows 1 and 2 will coincide after removing the last column, so they go to S_2: row 1 goes to S_2^- and row 2 goes to S_2^+.
__________________
Where everyone thinks alike, no one thinks very much
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 01:40 AM.


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.