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10-701 Spring 2013 CMU
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Welcome to the group for 10-701/15-781 (Machine Learning) S13 @ CMU.
Here you may post questions about the class (lectures, homeworks, projects, grading).
Please be polite, don't spam and, importantly,
do not post answers to homeworks.
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Xinghai Hu
5/11/13
homework score
Hi TAs, I'd like to ask whether all exam score have been posted on blackboard? I could not see
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homework
homework score
Hi TAs, I'd like to ask whether all exam score have been posted on blackboard? I could not see
5/11/13
Xiaolong Shen
4/14/13
Homework 5 2.2 Any Typo?
Hi, I guess 2.2 the equation (1) doesn't hold. It should be H(x_i | y) instead of H(\pi(x_i) | y)
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homework
hw5
Homework 5 2.2 Any Typo?
Hi, I guess 2.2 the equation (1) doesn't hold. It should be H(x_i | y) instead of H(\pi(x_i) | y)
4/14/13
Xiaolong Shen
, …
Sam Zhang
3
4/14/13
Q&A
HW5 2.2
I think that x_i is an event with multiple choices so is \pi(x_i). Hence, given x_i, we know x_j = \
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homework
hw5
Q&A
HW5 2.2
I think that x_i is an event with multiple choices so is \pi(x_i). Hence, given x_i, we know x_j = \
4/14/13
Xinghai Hu
,
Daniel Maturana
2
3/31/13
Q&A
Homework4 Q1
It doesn't have the right sufficient statistics. On Sun, Mar 31, 2013 at 4:10 PM, Xinghai Hu <
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homework
hw4
Q&A
Homework4 Q1
It doesn't have the right sufficient statistics. On Sun, Mar 31, 2013 at 4:10 PM, Xinghai Hu <
3/31/13
Xinghai Hu
, …
Leila Wehbe
4
4/17/13
Q&A
How many grades have been posted to blackboard?
Hi Sam, It is not up yet. It will be tomorrow. Leila On Wed, Apr 17, 2013 at 9:38 PM, Sam Zhang <
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homework
Q&A
How many grades have been posted to blackboard?
Hi Sam, It is not up yet. It will be tomorrow. Leila On Wed, Apr 17, 2013 at 9:38 PM, Sam Zhang <
4/17/13
Xinghai Hu
,
Junier Oliva
2
3/25/13
Q&A
HW 4 Q4
Hi Xinghai, First one draws from the initial distribution and then transitions 3 times, so 4 RVs in
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homework
hw4
Q&A
HW 4 Q4
Hi Xinghai, First one draws from the initial distribution and then transitions 3 times, so 4 RVs in
3/25/13
Han
,
Madalina Fiterau
2
3/6/13
Where should I get my other question grades of Assignment#2?
If you submitted online, you'll get the response for problems 3,4 and (I think) 5 via e-mail by
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homework
hw2
Where should I get my other question grades of Assignment#2?
If you submitted online, you'll get the response for problems 3,4 and (I think) 5 via e-mail by
3/6/13
Jingkun Gao
, …
Krikamol Muandet
4
2/20/13
Does the sequence of training data matter in SVM?
Hi Krik and Xinghai, Thanks for your reply. I understand that the problem is in the optimization part
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homework
Does the sequence of training data matter in SVM?
Hi Krik and Xinghai, Thanks for your reply. I understand that the problem is in the optimization part
2/20/13
Kumar Shaurya Shankar
, …
Barnabas Poczos
4
2/19/13
Q&A
Can a positive semidefinite matrix be asymmetric?
Exactly, a positive semidefinite matrix has to be symmetric by definition. See, eg here: http://en.
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homework
hw2
Q&A
Can a positive semidefinite matrix be asymmetric?
Exactly, a positive semidefinite matrix has to be symmetric by definition. See, eg here: http://en.
2/19/13
fred king
,
Krikamol Muandet
4
2/19/13
HW2 5.3 plot decision boundary
Hi Fred, You can use the property that w can be written as a linear combination of feature maps. That
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homework
HW2 5.3 plot decision boundary
Hi Fred, You can use the property that w can be written as a linear combination of feature maps. That
2/19/13
npk
, …
Junier Oliva
17
2/20/13
Q&A
HW2 | 5.1
Defining Y_{test} like that sounds correct. -Junier On Tue, Feb 19, 2013 at 9:45 PM, Jingkun Gao <
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homework
hw2
Q&A
HW2 | 5.1
Defining Y_{test} like that sounds correct. -Junier On Tue, Feb 19, 2013 at 9:45 PM, Jingkun Gao <
2/20/13
David Naylor
,
Junier Oliva
2
2/17/13
HW2 #5.3
You can just use c=100. -Junier On Sat, Feb 16, 2013 at 9:56 PM, David Naylor <dtb...@gmail.com
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homework
hw2
HW2 #5.3
You can just use c=100. -Junier On Sat, Feb 16, 2013 at 9:56 PM, David Naylor <dtb...@gmail.com
2/17/13
David Naylor
, …
Alex Smola
7
2/17/13
Optimization in Matlab
hi guys, solving the primal with SGD is NOT ok. SGD in the primal won't even be possible in the
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homework
hw2
Optimization in Matlab
hi guys, solving the primal with SGD is NOT ok. SGD in the primal won't even be possible in the
2/17/13
Ruikun Luo
, …
Shuchang Liu
4
2/16/13
problem 2.2 in homework 2
Hi, From my point of view, the values should look like, i y x 1 1 (1, 0, 0, 0, 0, ...) 2 -1 (1, -1, 0
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homework
hw2
problem 2.2 in homework 2
Hi, From my point of view, the values should look like, i y x 1 1 (1, 0, 0, 0, 0, ...) 2 -1 (1, -1, 0
2/16/13
David Fouhey
, …
Mu Li
4
2/15/13
Clarification for Problem 2.3?
I see... Thanks for clarifying! Regards, David On Fri, Feb 15, 2013 at 4:49 PM, Mu Li <limu.cn@
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homework
hw2
Clarification for Problem 2.3?
I see... Thanks for clarifying! Regards, David On Fri, Feb 15, 2013 at 4:49 PM, Mu Li <limu.cn@
2/15/13
David Naylor
, …
Alex Smola
4
2/17/13
HW2 4.1.2
hi zhuoc, here's a bit more reasoning about what's happening (i didn't go into that
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homework
hw2
HW2 4.1.2
hi zhuoc, here's a bit more reasoning about what's happening (i didn't go into that
2/17/13
Manzil Zaheer
,
Barnabas Poczos
2
2/12/13
Homework#2 Question 3.2
You don't have to prove the Spectral Theorem. Barnabas On Tue, Feb 12, 2013 at 9:21 PM, Manzil
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homework
hw2
Homework#2 Question 3.2
You don't have to prove the Spectral Theorem. Barnabas On Tue, Feb 12, 2013 at 9:21 PM, Manzil
2/12/13
Manzil Zaheer
,
Xuezhi Wang
2
2/9/13
HW #2 Question 1.2
Hi, Yes, if you can find another reasonable way to prove it, you can use that. On Sat, Feb 9, 2013 at
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homework
hw2
HW #2 Question 1.2
Hi, Yes, if you can find another reasonable way to prove it, you can use that. On Sat, Feb 9, 2013 at
2/9/13
Alex Smola
2/8/13
Homework effort survey
To get a better idea of the amount of work spent on the homework, please fill in the survey here:
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homework
hw1
hw2
Homework effort survey
To get a better idea of the amount of work spent on the homework, please fill in the survey here:
2/8/13
Evgeny
, …
Barnabas Poczos
27
2/18/13
hw1 - class materials don't help
If you have questions on the slides, I'm happy to explain them to you. Please visit me in my
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homework
hw1 - class materials don't help
If you have questions on the slides, I'm happy to explain them to you. Please visit me in my
2/18/13
Jingkun Gao
,
Vagelis Papalexakis
3
2/5/13
homework 3.4.1 test/train error
Got it. That's really helpful. Thanks a lot. Regards, Jingkun On Tuesday, February 5, 2013 9:34:
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homework
homework 3.4.1 test/train error
Got it. That's really helpful. Thanks a lot. Regards, Jingkun On Tuesday, February 5, 2013 9:34:
2/5/13
Yitong Zhou
, …
Leila Wehbe
7
2/5/13
Question: HW1 3.5
Sorry guys I replied with my cs address so the email didn't go through: You can do both. The
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homework
hw1
Question: HW1 3.5
Sorry guys I replied with my cs address so the email didn't go through: You can do both. The
2/5/13
Enze
2/4/13
Distance function for mixed attributes
What is a good way to calculate distances when there are both discrete and continuous attributes?
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homework
hw1
Distance function for mixed attributes
What is a good way to calculate distances when there are both discrete and continuous attributes?
2/4/13
Se-Joon
, …
Alex Smola
4
2/3/13
Homework Length
hi guys, most likely future homework will have a larger dynamic range in terms of difficulty (a few
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homework
hw1
Homework Length
hi guys, most likely future homework will have a larger dynamic range in terms of difficulty (a few
2/3/13
David Naylor
,
Madalina Fiterau
2
1/30/13
Q&A
HW1 1.2.1
You may use the continuity properties of functions like arctan. I don't expect epsilon-delta
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homework
hw1
Q&A
HW1 1.2.1
You may use the continuity properties of functions like arctan. I don't expect epsilon-delta
1/30/13
Mark
,
Madalina Fiterau
2
1/29/13
HW1: 1.1
You should uses the 3 axioms + the definition of the complement to prove those statements. On 29
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homework
hw1
HW1: 1.1
You should uses the 3 axioms + the definition of the complement to prove those statements. On 29
1/29/13
Helen
,
Alex Smola
2
1/27/13
Q&A
about further reading
Hi Helen, As explained in lecture 1 on the first set of green slides: Red - regular stuff (I picked
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homework
Q&A
about further reading
Hi Helen, As explained in lecture 1 on the first set of green slides: Red - regular stuff (I picked
1/27/13
Han
,
Leila Wehbe
2
1/26/13
Questions of Homework 1 in 2.2
Hi Han, The 1 is a d-vector of ones and not a scalar, indicating that each of the d components of w
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homework
hw1
Questions of Homework 1 in 2.2
Hi Han, The 1 is a d-vector of ones and not a scalar, indicating that each of the d components of w
1/26/13
Ruikun Luo
,
Leila Wehbe
2
1/26/13
Q&A
homework problem
The question is to prove the sets are equal. Leila On Sat, Jan 26, 2013 at 12:09 AM, Ruikun Luo <
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homework
Q&A
homework problem
The question is to prove the sets are equal. Leila On Sat, Jan 26, 2013 at 12:09 AM, Ruikun Luo <
1/26/13
Fan
, …
Daniel Maturana
5
2/20/13
Homework
Hello, could we have explicit point allocations on the homework this time? Specially for things like
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homework
Homework
Hello, could we have explicit point allocations on the homework this time? Specially for things like
2/20/13