LFD Book Forum  

Go Back   LFD Book Forum > Book Feedback - Learning From Data > Chapter 1 - The Learning Problem

Reply
 
Thread Tools Display Modes
  #1  
Old 06-29-2016, 07:46 PM
ScientistGirl ScientistGirl is offline
Junior Member
 
Join Date: Jun 2016
Posts: 2
Exclamation Problem 1.12 (b) and (c)

Problem 1.12 (b) and (c)

Im not understanding on B)

Why it says half the data are at most hmed ? Im not understanding what it means!



on C)
Im not sure i understood the question.
It says yn is perturbed by e, and e -> infinite
It asks what happens to hmean and hmed

To me, hmean would increase , since this yn point is perturbed to positive infinite.
Even if its an outlier, it will end up increasing it.

hmed would remain the same.

However, this answer seems to simple and im insecure about it!

Would anyone clarify?
Reply With Quote
  #2  
Old 08-05-2016, 10:19 PM
williamshakespare williamshakespare is offline
Junior Member
 
Join Date: Mar 2016
Posts: 6
Default Re: Problem 1.12 (b) and (c)

problem solved?
Reply With Quote
  #3  
Old 08-12-2016, 08:45 AM
magdon's Avatar
magdon magdon is offline
RPI
 
Join Date: Aug 2009
Location: Troy, NY, USA.
Posts: 592
Default Re: Problem 1.12 (b) and (c)

A simple answer is not necessarily wrong
Quote:
Originally Posted by ScientistGirl View Post
Problem 1.12 (b) and (c)

Im not understanding on B)

Why it says half the data are at most hmed ? Im not understanding what it means!



on C)
Im not sure i understood the question.
It says yn is perturbed by e, and e -> infinite
It asks what happens to hmean and hmed

To me, hmean would increase , since this yn point is perturbed to positive infinite.
Even if its an outlier, it will end up increasing it.

hmed would remain the same.

However, this answer seems to simple and im insecure about it!

Would anyone clarify?
__________________
Have faith in probability
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 02:26 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2017, 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.