Soft Margin SVM and Kernels with CVXOPT - Practical Machine Learning Tutorial with Python p.32

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In this tutorial, we cover the Soft Margin SVM, along with Kernels and quadratic programming with CVXOPT all in one quick tutorial using some example code from:

  1. sentdex
  2. cvxopt
  3. python
  4. machine learning
  5. svm
  6. support vector machine
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Комментарии
Автор

Hello, could you explain why P, q, G, h, A, b are generated as in your code for us?

birdhuge
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1:55 "x to the power of T" should be "x transposed". Same goes for q.

Trvgn
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Hi sentdex. Do you still have the pdf and can maybe share it with us since the first link you print on the details of this video does not work anymore

froh_do
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Great video, but the link to Blondel's code is broken. Looks like his whole blog is down. Just a heads up.

brockboren
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3:23 "we really didn't talk about Gaussian kernel, but you can look it up". Oh we did, given that radial basis function RBF and Gaussian are one and the same.

AhmedIsam
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The links need to be updated. The link to the code is no longer available. Thank you so much for the content Sentex!

santiagobmx
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Hey Harrison,
I'm currently on Mac OS Sierra 10.12.2, using Python 2.7.13...
I'm unable to install cvxopt using either pip or the downloaded package..
It seems that BLAS and LAPACK in MacOS has some problem in general..

I'm getting an error during installation :
src/C/umfpack.c:23:10: fatal error: 'umfpack.h' file not found
#include "umfpack.h"
^
1 error generated.
error: command '/usr/bin/clang' failed with exit status 1

theycallmemorphine
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How to visualize a kernel SVM classification model with three input, I mean How can we plot 3 Dimensional plot for the SVM classification model? and when we have more than two input variables how to visualize on a graph or it is not possible to do that?

riken
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could you show an example for text classification example with SVM please?

keerthana
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I have had the most dreadful time trying to install CVXOPT onto my machine (2015 Macbook Pro with Python 3.5) ... I have tried to pip install it, condo install it, clone it from github, went to its webpage with no success ... why is CVXOPT so buggy when installing? is there an easy way to install it on Mac OS X 10.11?

IonicCascade
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if C=none it is hard margin, why in 4:34 you said that if it is a soft margin (you point in the line: if self.C=none), just little bit confuse here, btw very helpful video tutorial :)

scarleeeeet
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nice video dude.... but can't install cvxopt... can I get any help please....

narveeryadav
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Name test error---test_soft is not defined. Why i got this error?

michiokaku
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i install CVXOPT on windows 10, but i keep getting an error with the __init__ file.

the error is:
Traceback (most recent call last):
File Machine Learning/32 Soft Margin SVM and Kernels with CVXOPT.py", line 18, in <module>
import cvxopt
File "C:\Users\Aweso\AppData\Local\Programs\Python\Python36\lib\site-packages\cvxopt\__init__.py", line 34, in <module>
import cvxopt.base
ImportError: DLL load failed: The specified module could not be found.

Can anyone help me?

AlexPiotrowski
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what does "pcost dcost gap pres dres" mean?

张哲-ew
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Nice video.
Can u also explain the theory and implementation of random forest classifier ?

kas_simplyliving
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I could not install cvxopt on python 3.7, not sure how to fix Traceback (most recent call last)
in <module>
      5 import numpy as np
      6 from numpy import linalg
----> 7 import cvxopt
      8 import cvxopt.solvers
      9

ModuleNotFoundError: No module named 'cvxopt'

guilingma
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Please can you cite your resources., the books that you learning from
Thanks

insses
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can you please help me in downloading cvxopt?

udayteja
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where can i find all this code from your video?

michiokaku
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